Apron Lighting
Apron Stand Guidance Light for Airfield Ground Lighting
Visual guidance along lead-in, turning and lead-out routes
Apron stand guidance lights provide visual guidance for aircraft manoeuvring within aircraft stands and apron areas, helping pilots follow the designated entry, turning and exit routes, with project-specific yellow and red configurations for apron operations.
Supplied by Precision AGL Solutions
Product Overview
Apron Stand Guidance Light
What It Is
Apron Stand Guidance Lights provide visual guidance for aircraft manoeuvring within aircraft stands and apron areas, helping pilots follow the designated stand entry, turning and exit routes and achieve the required parking position.
They are particularly useful on paved aprons and aircraft stands intended for use in poor visibility conditions, where visual guidance from pavement markings alone may not be sufficient. ICAO identifies aircraft stand manoeuvring guidance lights for this purpose unless adequate guidance is provided by other means.
How We Select Them
Precision AGL Solutions supplies apron stand guidance lighting solutions selected according to:
- Aircraft stand layout and centreline
- Lead-in, turning and lead-out lines
- Aircraft stand marking
- Poor-visibility operating requirements
- Light colour, optical coverage and spacing
- Stop-position arrangement
- Inset or surface-mounted configuration
- Electrical circuit and switching
- Environmental conditions
- Project technical specification
The final configuration should always follow the approved aircraft stand layout, applicable aerodrome standard and project-specific requirements.
Applications
Where Apron Stand Guidance Lights Are Used
Aircraft parking standsRoute guidance to the parking position.
Apron stand entry routesEntry guidance from the apron approach.
Stand lead-in linesGuidance toward the stand.
Stand turning linesGuidance while the aircraft changes heading.
Stand lead-out linesGuidance back to the apron / taxiway route.
Apron taxi lanesLanes serving the stand area.
Remote aircraft standsStands away from the main apron.
De-icing / anti-icing facilitiesFacilities intended for poor-visibility operation.
Aircraft stand rehabilitationUpgrade of existing stand lighting.
Apron redevelopmentNew or reconfigured apron layouts.
Low-visibility stand operationsOperations where markings alone may not suffice.
Replacement of existing lightsLike-for-like or upgraded replacement.
ICAO guidance specifically addresses aircraft stand manoeuvring guidance lighting for paved aprons and de-icing/anti-icing facilities intended for poor-visibility operation.
Function of Apron Stand Guidance Lighting
A Continuous Visual Indication of the Intended Route
The primary purpose is to provide a continuous visual indication of the intended aircraft route through the stand. The system can support three principal movement segments.
Lead-InGuides the aircraft from the apron / taxiway approach toward the aircraft stand.
TurningProvides visual guidance while the aircraft changes heading to align with the stand centreline.
Lead-OutProvides guidance as the aircraft leaves the stand and returns to the apron / taxiway route.
The lighting works together with the aircraft stand markings to make the intended route clearly identifiable.
Stand Manoeuvring Guidance vs Docking Guidance
Two Different Systems, Two Different Jobs
Apron Stand Manoeuvring Guidance Lights
Provide visual guidance along the stand markings and help the pilot initiate and follow the manoeuvre.
Visual Docking Guidance System (VDGS)
Provides more precise azimuth and stopping information where accurate final aircraft positioning is required.
ICAO material notes that stand manoeuvring lights can provide adequate guidance to initiate the turn and take up the stand centreline, but may not provide the azimuth accuracy or stopping guidance required for nose-in stands equipped with passenger boarding bridges. In those situations, a visual docking guidance system is used.
Apron Stand Guidance Lights are not a substitute for a VDGS where precision docking is required.
Stand Guidance Lighting Arrangement
A Typical Stand Route
Schematic only. The actual arrangement depends on the approved aircraft stand marking and aircraft movement geometry.
Light Colour
Yellow to Follow the Route, Red to Stop
Lead-In / Turning / Lead-Out Guidance
ICAO specifies fixed yellow lights. These lights are intended to remain visible throughout the segments where they provide guidance.
Stop Position
Where a light indicates the aircraft stop position, ICAO specifies a fixed unidirectional red light.
Yellow → Follow the stand route | Red → Stop at the designated position
Optical Configuration
Optics Suited to Aircraft Movement Geometry
Important Characteristics
- Fixed light output
- Yellow guidance indication
- Adequate visibility throughout the intended guidance segment
- Horizontal beam coverage
- Vertical beam coverage
- Optical axis
- Intensity appropriate to ambient conditions
- Directional output where required
- Red directional stop indication where applicable
Intensity
ICAO specifies that the intensity must be adequate for the visibility and ambient-light conditions under which the aircraft stand is intended to be used.
Omnidirectional vs Directional
For lead-in, turning and lead-out guidance, the lights may need to remain visible across the relevant viewing segments as the aircraft changes direction. Older ICAO design guidance describes omnidirectional low-intensity yellow taxiway-type lights as a normal solution. The exact optical configuration should be selected from the approved stand layout and manufacturer's photometric data.
Light Spacing
Maximum Spacing Along the Stand Route
| Stand Section | Maximum Spacing |
|---|---|
| Straight lead-in / lead-out section | 15 m |
| Curved turning section | 7.5 m |
These values are intended to maintain continuous visual guidance through both straight and curved portions of the stand route. Actual spacing may be reduced where required by:
- Aircraft type
- Stand geometry
- Visibility conditions
- Lighting performance
- Project specification
- Operational requirement
Location & Stand Geometry
Co-Located With the Stand Markings
Location Relative to Markings
Aircraft stand manoeuvring guidance lights should be co-located with the aircraft stand markings under the ICAO provision. Coordination between stand marking + centreline + light position is therefore essential.
The fixture layout should be developed from the approved aircraft stand drawing rather than from a generic spacing schedule.
Coordinate The Layout With
- Stand centreline
- Lead-in, turning and lead-out lines
- Aircraft parking and nose position
- Aircraft wingspan
- Taxi lane and adjacent stands
- Passenger boarding bridge
- Fixed ground-service equipment
- Aircraft safety clearances
Different stand geometries may require different lighting layouts.
Aircraft Type & Stand Guidance
Designed Around the Operating Aircraft Population
Narrow-bodyAircraft stands for narrow-body types.
Wide-bodyAircraft stands for wide-body types.
RegionalRegional aircraft operations.
FreighterFreighter aircraft operations.
Stands may also serve mixed-fleet operations. The guidance lighting should be designed around the approved stand markings and operating aircraft population. Where several aircraft types use the same stand, the stand guidance and docking system should be reviewed for the required final positioning accuracy.
Poor-Visibility Operations
Where Markings Alone May Not Be Enough
Why It Matters
Apron stand guidance lighting becomes particularly relevant where the stand is intended for aircraft operations in poor visibility.
ICAO identifies these lights specifically for paved aircraft stands and de-icing/anti-icing facilities intended for poor-visibility conditions, unless adequate guidance is available by another means.
The Design Should Consider
- Visibility
- RVR where relevant
- Ambient apron lighting
- Aircraft cockpit viewing geometry
- Stand markings
- VDGS availability
- Floodlighting
- Adjacent aircraft stands
- Surface movement procedures
Stand Lighting and Apron Floodlighting
Two Systems, One Visual Environment
Apron Floodlighting
Provides general illumination of the apron and aircraft servicing area.
Stand Guidance Lights
Provide dedicated visual guidance along the aircraft stand route.
Excessive background illumination can reduce the visual contrast of guidance lights, so the complete apron lighting design should be considered as a whole:
Floodlighting + Stand Guidance + Markings + VDGS
Relationship With VDGS
Manoeuvring Lights and VDGS Can Work Together
A VDGS Can Include
- Azimuth guidance
- Centreline alignment
- Stopping guidance
- Aircraft type identification
- Closing-rate information
- Stop indication
- Operational status
ICAO Position
ICAO identifies the VDGS as a separate visual aid and calls for one where a visual aid is intended to indicate precise aircraft positioning and alternative methods such as marshallers are not practicable.
The stand manoeuvring lights and VDGS may therefore operate together.
Stop Position Lighting
Treated Differently From the Yellow Route Lights
Stop-Position Lights
ICAO specifies stop-position lights as fixed, unidirectional and red.
The stop indication should correspond with the approved stopping position for the applicable aircraft type.
Multiple Positions / Aircraft Types
For stands with several parking positions or multiple aircraft types, the stopping arrangement may require additional control or VDGS technology.
Switching Arrangement
Switched ON When the Stand Is in Use
ICAO Switching Principle
The lighting circuit should be designed so the lights can be:
- Switched ON → Stand in use
- Switched OFF → Stand not in use
This allows stand guidance lighting to be operated according to apron utilization.
Control Arrangement May Include
- Local switching
- Apron control panel
- ALCMS
- Stand management system
- Airport operations control
- Central lighting control
- Maintenance control
The actual switching philosophy is project-specific.
Electrical Characteristics
Integrated Into the Airport Lighting Electrical System
Parameters To Verify
- Operating current
- Power consumption
- Circuit type
- Isolating transformer where used
- Secondary cable
- Connector arrangement
- Switching arrangement
- Monitoring requirements
- Control-system interface
Before Adding or Replacing Lights, Confirm
- Existing circuit type
- Operating current
- Fixture electrical characteristics
- Transformer rating
- Number of fixtures
- Primary cable
- Secondary cable
- Connector type
- Switching method
- Monitoring requirements
- Control-system interface
A possible AGL arrangement:
AGL Power / CCRPower source
Primary Series CircuitSeries loop
Isolating TransformerIsolation
Secondary CableTransformer-to-fixture
Apron Stand Guidance LightFixture
The actual architecture depends on the project design. Incorrect electrical selection may result in incorrect intensity, uneven illumination, circuit instability, transformer stress, premature fixture failure, switching problems or monitoring faults.
LED Light Source
LED Technology, Evaluated as a Complete Fixture
Potential Advantages
- Long operating life
- Reduced maintenance
- Low lamp replacement requirements
- Consistent yellow output
- Controlled optical performance
- Reduced energy consumption
- Fast switching
- Compatibility with modern airport control systems
Compliance Note
LED technology should not be treated as the sole compliance criterion.
The complete fixture must satisfy the applicable optical, photometric, electrical, mechanical and environmental requirements.
Photometric Performance
What the Fixture Should Be Evaluated For
| Parameter | Requirement |
|---|---|
| Light source | LED / approved technology |
| Guidance colour | Yellow |
| Stop colour | Red where applicable |
| Operation | Fixed |
| Direction | Project specific |
| Intensity | Visibility / ambient-light dependent |
| Beam distribution | Fixture-specific |
| Horizontal coverage | Required guidance segment |
| Vertical coverage | Aircraft cockpit viewing geometry |
| Colour coordinates | Applicable standard |
| Spacing | Layout dependent |
| Photometric verification | Project dependent |
ICAO design material indicates that stand manoeuvring guidance lights should have intensity appropriate to the intended visibility and ambient-light conditions.
Mechanical Construction
Construction Depends on the Selected Product
Construction May Include
- Inset or low-profile housing
- Optical lens
- LED module
- Optical assembly
- Aluminium or other approved body
- Stainless-steel hardware
- Gasket and sealing system
- Cable connection
- Mounting arrangement
- Drainage provisions
Confirmation
Exact materials and construction should be confirmed from the selected manufacturer's approved technical documentation.
Surface Temperature & Aircraft Tyre Interface
Evaluated for Interaction With Aircraft Movement
Why It Matters
Stand guidance lights are installed within aircraft movement and parking areas, so the product should be evaluated not only for light output but also for its interaction with aircraft movement.
ICAO design material notes that the surface temperature of the light fittings must be sufficiently low so as not to adversely affect aircraft tyres coming into contact with them.
Consider When Evaluating
- LED thermal design
- Fixture surface temperature
- Inset installation
- Aircraft tyre contact
- Pavement loading
- Duty cycle
Environmental Performance
Built for Exposed Airport Environments
Rain & water ingressSealing against water.
Dust & humidityExposure in open aprons.
Temperature & UVThermal variation and UV exposure.
Corrosion & fluidsServicing fluids and cleaning chemicals.
Jet blastExposure to engine blast.
Mechanical impactImpact and loading.
Pavement contaminationContaminants on the pavement.
For inset installations, give particular attention to sealing + drainage + mechanical loading + surface temperature + pavement interface.
Installation Considerations
What To Verify On Site
Stand Marking
- Lead-in line
- Turning line
- Lead-out line
- Stand centreline
- Stop position
Fixture Location & Optical Alignment
- Co-location with markings
- Correct spacing and curve geometry
- Correct approach direction
- Viewing direction
- Light visibility and beam coverage
- Stop-position direction where applicable
Pavement
- Housing
- Installation depth
- Fixture seating
- Drainage and sealing
- Fastener torque
- Cable routing
Commissioning & Testing
Tested Under Representative Operating Conditions
Visual Inspection
- Fixture condition
- Lens cleanliness
- Yellow output
- Red stop indication where provided
- Fixture location and spacing
- Stand-marking relationship
- Alignment
- Housing and pavement condition
- Cable and connector
Electrical Testing
- Circuit continuity
- Insulation resistance
- Transformer verification
- Secondary connection
- Operating current
- Switching operation
- Monitoring
Depending on the approved project procedure.
Functional & Photometric
- Stand selected ON / OFF
- Lead-in, turning and lead-out guidance
- Stop indication where provided
- Visibility along the intended route
- Yellow / red colour where required
- Intensity, beam distribution and alignment
Inspection & Maintenance
Routine Maintenance Scope
OpticalLens cleanliness and damage, yellow colour, red stop indication, intensity, beam coverage.
MechanicalFixture seating, housing, fasteners, pavement interface, physical impact, surface condition.
ElectricalTransformer, connector, secondary cable, circuit current, insulation, moisture.
Stand LayoutMarking condition, spacing, alignment, lead-in / turning / lead-out continuity, stop-position indication.
Common Failure Modes
Typical Faults and Possible Causes
| Symptom | Possible Causes |
|---|---|
| Guidance light OFF | Open circuit, LED failure, transformer failure, connector failure, cable fault, switching problem |
| Uneven guidance | Incorrect spacing, different fixture types, unequal intensity, optical contamination, fixture degradation, incorrect alignment |
| Guidance not visible through curve | Excessive spacing, incorrect optical distribution, incorrect fixture orientation, stand geometry change, insufficient intensity |
| Stop light OFF | LED / light-source failure, circuit failure, transformer fault, connector fault, internal fixture fault |
| Incorrect stop position | Stand-marking change, aircraft-type change, fixture relocation, incorrect stop-position configuration, VDGS / control-system configuration issue |
Engineering Troubleshooting Sequence
Work From Control to Photometry
Stand ControlSelection
Lighting CommandCommand
Power / CCRSupply
Primary CircuitSeries loop
Isolating TransformerIsolation
Secondary CableFixture feed
ConnectorConnection
Guidance FixtureFixture
Light SourceLED
Optical AlignmentAiming
Functional / Photometric VerificationFinal check
For a stand-level problem, additionally inspect:
Stand marking → fixture position → spacing → aircraft route → stopping position → VDGS interaction
Product Selection Matrix
Key Selection Parameters
| Selection Parameter | Requirement |
|---|---|
| Application | Aircraft stand manoeuvring |
| Installation | Inset / project specific |
| Guidance colour | Yellow |
| Stop colour | Red where applicable |
| Operation | Fixed |
| Direction | Project specific |
| Lead-in | Required / not required |
| Turning | Required / not required |
| Lead-out | Required / not required |
| Straight spacing | Up to 15 m |
| Curved spacing | Up to 7.5 m |
| Visibility | Project specific |
| Intensity | Ambient / visibility dependent |
| Circuit | Project specific |
| Transformer | Where applicable |
| Switching | Stand-use dependent |
| Monitoring | Project specific |
| VDGS | Present / absent |
| Housing | Project specific |
| Surface temperature | Must be suitable for aircraft movement |
| Environment | Airport specific |
| Documentation | TDS / photometry / certificates |
Product Selection Checklist
Before Ordering Apron Stand Guidance Lights, Confirm
- Airport / project
- Aircraft stand identification
- Stand layout
- Aircraft stand marking
- Lead-in line
- Turning line
- Lead-out line
- Stop position
- Aircraft types served
- Poor-visibility requirement
- VDGS installed / planned
- Yellow guidance lights
- Red stop lights where applicable
- Straight-section spacing
- Curve-section spacing
- Optical direction
- Beam distribution
- Intensity
- LED / approved light source
- Surface-temperature requirement
- Series-circuit arrangement
- Isolating transformer
- Connector type
- Switching requirements
- Monitoring
- ALCMS integration
- Housing
- Installation depth
- Pavement cut-out
- Drainage
- Environmental rating
- Applicable standard
- Manufacturer TDS
- Photometric documentation
- Compliance / type-test documentation
- Project approval requirements
Technical Documents to Request
For Technical Evaluation and Procurement
- Product datasheet
- Technical specification
- Photometric report
- Beam distribution diagram
- Yellow colour / chromaticity information
- Red stop-light information where applicable
- Lead-in / turning / lead-out layout
- Fixture spacing requirements
- Optical direction information
- Electrical specification
- Rated operating current
- Power consumption
- Transformer requirement
- Connector details
- Housing drawing
- Fixture dimensions
- Installation depth
- Pavement cut-out details
- Mounting details
- Drainage requirements
- Switching / interface information
- Monitoring information
- Surface-temperature data where applicable
- Weight
- Material specification
- Environmental rating
- Installation manual
- Maintenance manual
- Compliance certificates
- Type-test reports
- Warranty information
Safety
Electrical Safety — Isolation and Lock-Out
WARNING — never open a live series circuit. An open series circuit driven by a constant-current regulator can produce dangerously high voltage. Opening, cutting or disconnecting any part of an energised circuit can cause serious injury or death and damage equipment.
- De-energise the circuit at the regulator and apply the site lock-out / tag-out (LOTO) procedure before any work
- Where the circuit must be isolated or shorted, use the series circuit cut-out switch or approved isolation device — not an improvised bypass
- Verify the circuit is de-energised and the output is isolated before touching conductors, connectors, splices or transformers
- Work only under the airport's permit-to-work system, using qualified personnel and the manufacturer's instructions
- Follow the applicable national electrical safety regulations and site procedures
Standards & References
Select and Install Against the Applicable Edition
Relevant References
- ICAO Annex 14 Vol. I, Chapter 5 (aircraft stand manoeuvring guidance lights and visual docking guidance systems)
- ICAO Doc 9157 Aerodrome Design Manual, Part 4 (visual aids) and Part 5 (electrical systems)
- FAA AC 150/5340-30J, for light installation and circuit details where FAA practice applies
- DGCA India CAR Section 4 and the airport stand design drawings
Apron stand guidance lighting should be selected and installed against the applicable edition of the governing aerodrome standard and approved aircraft stand design.
ICAO
Relevant provisions are contained in ICAO Annex 14 — Aerodromes, Volume I, under aircraft stand manoeuvring guidance lights. ICAO specifies that these lights:
- Facilitate aircraft positioning on paved stands intended for poor-visibility use unless adequate alternative guidance exists
- Are co-located with aircraft stand markings
- Use fixed yellow lights for lead-in, turning and lead-out guidance
- Use fixed unidirectional red lights to indicate a stop position
- Use intensity appropriate to visibility and ambient-light conditions
- Should be switchable to indicate stand use status
- Use spacing not exceeding 7.5 m on curves and 15 m on straight sections
ICAO design guidance further distinguishes these manoeuvring lights from Visual Docking Guidance Systems, which provide the more precise azimuth and stopping guidance required for certain nose-in aircraft stands.
India
For Indian airport projects, also verify:
- DGCA requirements
- Airport-specific AGL specifications
- Aircraft stand design criteria
- Stand marking drawings
- Apron control philosophy
- VDGS requirements
- Project BOQ
- Employer's requirements
- Applicable Indian Standards
- Airport operator requirements
Always verify the current governing document edition and project-specific requirements before procurement, technical approval or installation.
Comparisons
Stand Guidance Light vs VDGS and Taxiway Centreline Light
Apron Stand Guidance Light vs VDGS
| Feature | Stand Guidance Light | VDGS |
|---|---|---|
| Primary function | Route / manoeuvring guidance | Precision docking |
| Main guidance | Lead-in / turning / lead-out | Azimuth + stopping |
| Typical guidance colour | Yellow | System-specific |
| Stop indication | Red light where applicable | Integrated stop-position indication |
| Installation | Marking-associated lights | Dedicated docking display / sensor system |
| Precision | Moderate | High |
| Aircraft type information | Normally not provided | May be provided |
| Closing-rate information | No | Yes, where supported |
| Typical application | Stand manoeuvring | Precision nose-in docking |
A VDGS should be selected where the aircraft stand requires precision docking and the guidance accuracy cannot adequately be achieved through markings and manoeuvring guidance lights alone.
Apron Stand Guidance Light vs Taxiway Centreline Light
| Feature | Stand Guidance Light | Taxiway Centreline Light |
|---|---|---|
| Primary purpose | Aircraft stand manoeuvring | Taxiway route guidance |
| Typical colour | Yellow | Green |
| Main location | Aircraft stand | Taxiway |
| Geometry | Stand lead-in / turn / lead-out | Taxiway centreline |
| Spacing | Up to 15 m straight / 7.5 m curved | Project / standard dependent |
| Stop indication | Red where applicable | Not normally a stand-stop function |
| Control | Stand-use dependent | Taxiway / AGL control |
FAQ
Apron Stand Guidance Light — Frequently Asked Questions
What is an apron stand guidance light?
Apron stand guidance lights provide visual guidance for aircraft manoeuvring within aircraft stands and apron areas. They help pilots follow the designated stand entry, turning and exit routes and achieve the required parking position. They are particularly useful on paved aprons and aircraft stands intended for use in poor visibility, where pavement markings alone may not be sufficient, and ICAO identifies aircraft stand manoeuvring guidance lights for this purpose unless adequate guidance is provided by other means.
What colours do apron stand guidance lights use?
ICAO specifies fixed yellow lights for lead-in, turning and lead-out guidance. Where a light indicates the aircraft stop position, ICAO specifies a fixed unidirectional red light, and the stop indication should correspond with the approved stopping position for the applicable aircraft type.
What is the maximum spacing between stand guidance lights?
The maximum spacing is 15 m on straight lead-in and lead-out sections and 7.5 m on curved turning sections. Spacing may be reduced where required by aircraft type, stand geometry, visibility conditions, lighting performance, the project specification or operational requirements. The fixture layout should be developed from the approved aircraft stand drawing rather than a generic spacing schedule.
Where are the lights located relative to the stand markings?
Under the ICAO provision, aircraft stand manoeuvring guidance lights should be co-located with the aircraft stand markings, so coordination between the stand marking, centreline and light position is essential. The layout should also be coordinated with the lead-in, turning and lead-out lines, aircraft parking and nose position, wingspan, the taxi lane and adjacent stands, the passenger boarding bridge, fixed ground-service equipment and aircraft safety clearances.
Is a stand guidance light a substitute for a VDGS?
No. Stand manoeuvring lights help the pilot initiate and follow the manoeuvre, while a Visual Docking Guidance System provides more precise azimuth and stopping information. ICAO material notes that stand manoeuvring lights can give adequate guidance to initiate the turn and take up the stand centreline, but may not give the azimuth accuracy or stopping guidance required for nose-in stands with passenger boarding bridges, where a VDGS is used. The two can operate together.
How does a stand guidance light differ from a taxiway centreline light?
A stand guidance light is for aircraft stand manoeuvring, is typically yellow, sits on the aircraft stand following lead-in, turning and lead-out geometry, can include a red stop indication and is controlled according to stand use. A taxiway centreline light is for taxiway route guidance, is typically green, sits on the taxiway centreline and is controlled with taxiway AGL control.
How are stand guidance lights switched?
The ICAO switching principle is that the lights can be switched on when the stand is in use and off when it is not. Control may be through local switching, an apron control panel, ALCMS, a stand management system, airport operations control, central lighting control or maintenance control, and the actual switching philosophy is project-specific.
How are stand guidance lights powered?
A possible arrangement is a CCR or AGL power source feeding a primary series circuit, an isolating transformer, a secondary cable and the fixture, although the actual architecture depends on the project design. Before adding or replacing lights, confirm the existing circuit type, operating current, fixture electrical characteristics, transformer rating, number of fixtures, primary and secondary cable, connector type, switching method, monitoring requirements and control-system interface. Incorrect electrical selection may cause incorrect intensity, uneven illumination, circuit instability, transformer stress, premature fixture failure, switching problems or monitoring faults.
Why does fixture surface temperature matter for stand lights?
Stand guidance lights are installed within aircraft movement and parking areas, so the product should be evaluated for its interaction with aircraft movement as well as light output. ICAO design material notes that the surface temperature of the light fittings must be low enough not to adversely affect aircraft tyres that come into contact with them. Consider the LED thermal design, fixture surface temperature, inset installation, aircraft tyre contact, pavement loading and duty cycle.
What are the common faults with stand guidance lights?
A guidance light that is off can come from an open circuit, LED failure, transformer failure, connector failure, a cable fault or a switching problem. Uneven guidance can come from incorrect spacing, mixed fixture types, unequal intensity, optical contamination, fixture degradation or incorrect alignment. A stop light that is off, or an incorrect stop position, can come from a light-source or circuit fault, a stand-marking or aircraft-type change, fixture relocation, or a VDGS or control-system configuration issue.
What should be confirmed before ordering apron stand guidance lights?
Confirm the airport and project, aircraft stand identification and layout, stand marking, lead-in, turning and lead-out lines, stop position, aircraft types served, poor-visibility requirement, whether a VDGS is installed or planned, spacing for straight and curved sections, optical direction, intensity, surface-temperature requirement, series-circuit arrangement, isolating transformer, connector type, switching and monitoring, housing and installation depth, drainage, environmental rating, applicable standard and the photometric and compliance documentation.
Is it safe to work on apron stand guidance lights while the circuit is energised?
No. An open series circuit driven by a constant-current regulator can produce dangerously high voltage, and opening, cutting or disconnecting any part of an energised circuit can cause serious injury or death. De-energise the circuit at the regulator, apply the site lock-out / tag-out procedure, use the series circuit cut-out switch or an approved isolation device and work under the airport’s permit-to-work system. See the electrical safety warning on this page.
Why Precision AGL Solutions
A Complete-System Approach
Precision AGL Solutions approaches apron stand lighting as part of the complete aircraft stand guidance system. Our technical approach considers:
Stand Geometry → Markings → Lead-In → Turning → Lead-Out → Fixture → Optics → Stop Position → Housing → Transformer → Circuit → Switching → VDGS → Photometry → Maintenance
This helps ensure that stand lighting is coordinated with the aircraft stand layout and other apron visual aids.
Procurement Information for Indian Projects
Indian public tenders commonly ask for the documents below. State which ones your tender requires when you send the enquiry, so they are covered in the quotation.
- Manufacturer / OEM authorisation
- Country of origin and local-content declaration (for Make in India purchase preference)
- Type-test and routine-test certificates, and the FAA / ICAO / IEC compliance documents named in the specification
- Datasheets, drawings and installation instructions
- Warranty, delivery period and spares support
- GeM catalogue or tender-portal requirements, where applicable
Request Apron Lighting Selection
Planning a new aircraft stand, apron redevelopment, stand rehabilitation or poor-visibility lighting upgrade? Submit your aircraft stand layout, stand marking drawing, aircraft types, lead-in / turning / lead-out arrangement, stop-position requirement, VDGS details, apron lighting layout, existing stand guidance lights, BOQ, technical specification, fixture quantity, electrical circuit information, ALCMS / control requirements and existing fixture TDS where available. Precision AGL Solutions can review the stand layout and support selection of the appropriate apron stand guidance configuration, optical characteristics, electrical interface and related documentation.
- Emailprecisionaglsolutions@gmail.com
- Websiterahulsharmaagl.in
- LinkedInPrecision AGL Solutions
- Phone+91 98214 96412
Engineering Note
Apron Stand Guidance Lights are intended to support aircraft stand manoeuvring, not to replace a precision Visual Docking Guidance System where accurate docking and stopping information is required.
For an ICAO-based installation, the key design parameters are co-location with stand markings, fixed yellow guidance lights, red fixed unidirectional stop-position lights where applicable, suitable intensity, and maximum spacing of 15 m on straight sections and 7.5 m on curves.
The final fixture configuration should always be selected from the approved aircraft stand layout, applicable aerodrome standard, visibility requirements and manufacturer's current technical documentation.
Product Disclaimer
Product availability, configuration, dimensions, electrical characteristics, photometric performance, certifications and compliance status depend on the selected manufacturer and project specification. The technical values published on this page should not be treated as a substitute for the manufacturer's current approved Technical Data Sheet.
Final selection shall be based on the approved project specification, applicable aviation standards, authority requirements, manufacturer documentation and site conditions. Use of this page is also subject to the Legal Notice, Disclaimer & Terms of Use.
Standards and editions referenced on this site are listed on the Standards Reference page.