Advisory Circular




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Advisory Circular

U.S. Department


of Transportation
Federal Aviation

Administration




Subject: SPECIFICATION FOR RUNWAY AND TAXIWAY LIGHT FIXTURES

Date: 5/19/2009

Initiated by: AAS-100

AC No: 150/5345-46D

Change:


1. PURPOSE. This advisory circular (AC) contains the Federal Aviation Administration (FAA) specifications for light fixtures to be used on airport runways and taxiways.
2. EFFECTIVE DATE. Effective six months after the issue date of this AC, only that equipment qualified per the specifications herein will be listed per AC 150/5345-53, Airport Lighting Equipment Certification Program.
3. CANCELLATION. AC 150/5345-46C, Specification for Runway and Taxiway Light Fixtures, dated September 12, 2006, is canceled.
4. APPLICATION. The Federal Aviation Administration (FAA) recommends the guidance and

specifications in this Advisory Circular for Runway and Taxiway Light Fixtures. In general, use of this AC is not mandatory. However, use of this AC is mandatory for all projects funded with federal grant monies through the Airport Improvement Program (AIP) and with revenue from the Passenger Facility Charges (PFC) Program. See Grant Assistance No. 34, “Policies, Standards, and Specifications,” and PFC Assurance No.9, “Standards and Specifications.” All lighting designs contained in this standard are the only means acceptable to the Administrator to meet the lighting requirements of Title 14 CFR Part 139, Certification of Airports, Section 139.311, Marking, Signs and Lighting.


5. PRINCIPAL CHANGES. The following principal changes are added:

  1. Paragraph 1.2.1a: L-850T in-pavement fixture is added for Runway Status Lights (RWSL) Takeoff Hold Light (THL) and Runway Intersection Light (RIL).

  2. Paragraph 1.2.1b: RWSL Runway Entrance Light (REL) function is added to the L-852S in-pavement light fixture.

  3. Paragraph 1.2.1c: red-yellow color combination is added to the L-862 elevated light fixture.

  4. Table 1: L-850T photometric requirements are added to the table. L-850T is added to Note (g).

  5. Table 1: the 10 percent vertical beam angle for L-852J and L-852K is changed to 0 to 15 degrees.

  6. Paragraph 3.4.2.3: The length of the stake is changed to not exceed 30 inches.

  7. Paragraph 3.5.4: the hydraulic impact requirement is changed to reference the test performed in paragraph 4.5.3.1.

  8. Paragraph 4.3.2: note is changed to add L-850T in-pavement fixture.

  9. Paragraph 4.3.3: an additional requirement is added for the computation of average intensity.


6. METRIC UNITS. To promote an orderly transition to metric units, this AC contains both English and metric dimensions. The metric conversions may not be exact metric equivalents and, until there is an official changeover to the metric system, the English dimensions will govern.

7. COMMENTS OR SUGGESTIONS for improvements to this AC should be sent to:

Manager, Airport Engineering Division

Federal Aviation Administration

ATTN: AAS-100

800 Independence Avenue, S.W.

Washington, DC 20591


8. COPIES OF THIS AC. The public may obtain electronic copies of this AC by visiting the FAA home page (www.faa.gov) and selecting the "Advisory Circulars" link. A printed copy of this AC and other ACs can be ordered from:
U.S. Department of Transportation

Subsequent Distribution Office

Ardmore East Business Center

3341 Q 75th Avenue

Landover MD 20785
Michael O’Donnell

Director of Airport Safety and Standards


TABLE OF CONTENTS.

U.S. Department i

CHAPTER 1. SCOPE AND CLASSIFICATION. 1

CHAPTER 2. APPLICABLE DOCUMENTS. 5

CHAPTER 3. REQUIREMENTS. 9

CHAPTER 4. QUALIFICATION REQUIREMENTS. 25

CHAPTER 5. PRODUCTION TESTING. 35


TABLE OF FIGURES.


Table 1. Photometric Requirements for In-pavement Lights. 10

Table 2. Photometric Requirements for Directional Elevated Lights. 11

Table 3. Photometric Requirements for Omnidirectional Elevated Lights. 13



CHAPTER 1. SCOPE AND CLASSIFICATION.

  1. Scope.


This specification covers the requirements for light fixtures for use on airport runways and taxiways.
  1. Classification.


The following light fixtures are covered by this specification:
    1. Types.


  1. Runway In-pavement Lights.

    Type

    Use

    Light Direction and Colors

    L-850A

    Runway centerline, Land and Hold Short Operations (LAHSO)



    Bidirectional: white-white, white-red

    Unidirectional: white, red



    L-850B

    Runway Touchdown Zone;

    Medium Intensity Approach Lighting System



    Unidirectional: white

    L-850C

    Runway edge, displaced threshold

    Bidirectional: White-white, white- yellow, white-red, yellow-red, yellow-green

    L-850D

    Runway threshold/end

    Bidirectional: green-red, red-red

    Unidirectional: green



    L-850E

    Medium Intensity Approach Lighting System; Runway threshold

    Unidirectional: green

    L-850F

    LAHSO

    Unidirectional: white; flashing

    L-850T

    Runway Status Lights (RWSL) Takeoff Hold Light (THL), Runway Intersection Light (RIL)

    Unidirectional: red

  2. Taxiway In-pavement Lights.

    Type

    Use

    Light Direction and Colors

    L-852A

    Taxiway centerline,

    Straight sections;

    Clearance bar

    (1200 Runway Visual Range (RVR))



    Bidirectional (narrow beam): green-green, green-yellow, yellow-yellow

    Unidirectional (narrow beam): green, yellow



    L-852B

    Taxiway centerline,

    Curved sections;

    (1200 RVR)


    Bidirectional (wide beam): green-green, yellow-yellow

    Unidirectional (wide beam): green, yellow



    L-852C

    Taxiway centerline

    Straight section;

    Clearance bar (1200 RVR)


    Bidirectional (narrow beam): green-green,

    green-yellow, yellow-yellow

    Unidirectional (narrow beam): green, yellow


    L-852D

    Taxiway centerline,

    curved sections

    (1200 RVR)


    Bidirectional (wide beam): green-green, yellow-yellow

    Unidirectional (wide beam): green, yellow, white



    L-852E

    Taxiway intersections

    (1200 RVR)



    Omni-directional: yellow

    L-852F

    Taxiway intersections

    (1200 RVR)



    Omni-directional: yellow

    L-852G

    Runway Guard

    Unidirectional (wide beam): yellow; alternately flashing

    L-852J

    Taxiway centerline,

    curved sections

    ≥1200 RVR)


    Bidirectional (wide beam): green-green, yellow-yellow

    Unidirectional (wide beam): green, yellow



    L-852K

    Taxiway centerline,

    curved sections

    (<1200 RVR)


    Bidirectional (wide beam): green-green, yellow-yellow

    Unidirectional (wide beam): green, yellow



    L-852S

    Stop bar, RWSL Runway Entrance Light (REL)

    Unidirectional (wide beam): red

    L-852T

    Taxiway edge, Apron edge

    Omni-directional: blue

  3. Elevated Lights.

Type

Use

Light Direction and Colors

L-804

Runway Guard

Unidirectional: yellow; alternately flashing

L-860

Runway edge, Visual Flight Rules (VFR) runways

Omni-directional: white

L-860E

Runway threshold/end,

VFR runways



Bidirectional: red-green, red-red

Unidirectional: green



L-861

Runway edge, non- precision Instrument Flight Rules (IFR) runways, displaced threshold

Omni-directional: white, yellow

Bidirectional: white-yellow, white-red, yellow-red, green-yellow



L-861E

Runway threshold/end, displaced threshold,

non-precision IFR runways



Bidirectional: red-green, red-red

Unidirectional: green



L-861SE

Runway threshold/end,

non-precision IFR runways



Bidirectional: red-green

Unidirectional: green



L-861T

Taxiway edge, Apron edge

Omni-directional: blue

L-862

Runway edge, threshold, displaced threshold, precision IFR runways



Bidirectional: white-white, white-yellow,

white-red, green-yellow, red-yellow



L-862E

Runway threshold/end, displaced threshold,

precision IFR runways



Bidirectional: red-green, red-red

Unidirectional: green



L-862S

Stop bar

Unidirectional: red
    1. Classes.


The class designation applies only to in-pavement fixtures:

Class 1 Direct-mounted fixtures

Class 2 Base-mounted fixtures

    1. Modes.


The mode designation describes the type of electrical power supply required for the fixture:

Mode 1 Constant current fixture, supplied by 6.6 amperes (A)

Mode 2 Constant voltage fixture, supplied by 120/240 volts AC (VAC)

    1. Styles.


The style designation applies only to in-pavement fixtures and describes the total height above finished grade (X) where:

Style 1* 1/2 inch (12.70 mm) < X  1 inch (25.40 mm)

Style 2 1/4 inch (6.35 mm) < X  1/2 inch (12.70 mm)

Style 3 X  1/4 inch (6.35 mm)

* Applies only to L-850 C, D, and E, and L-852 E and F

    1. Optional Items.


The manufacturer may provide the following optional features. These options must meet the requirements of 3.12:

Option 1 Lamp By-Pass (in-pavement lights)

Option 3 Shields (elevated lights)

Option 4 Mounting Hardware (elevated lights)

Option 5 Two lamps for bidirectional taxiway centerline fixtures

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