[Federal Register Volume 77, Number 125 (Thursday, June 28, 2012)]
[Notices]
[Page 38705]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2012-15790]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration


Draft Specification for Airport Light Bases, Transformer 
Housings, Junction Boxes, and Accessories, Advisory Circular 150/5345-
42G; Opportunity To Comment

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice.

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SUMMARY: The Federal Aviation Administration (FAA), DOT invites 
airports consultants, industry representatives and all other interested 
parties to review and comment on the Draft ``Specification for Airport 
Light Bases, Transformer Housings, Junction Boxes, and Accessories 
Airport Design'' Advisory Circular, AC 150/5345-42G. The Advisory 
Circular provides standards and recommendations for airport light 
bases, transformer housings, junction boxes and accessories.
    The FAA has posted the AC on the Internet at: http://www.faa.gov/airports/resources/advisory_circulars/.

DATES: Comments must be received on or before August 13, 2012. Comments 
that are received after that date will be considered to the extent 
possible.

FOR FURTHER INFORMATION CONTACT: Raymond Zee, P.E., Airport Engineering 
Division, (AAS-100), Federal Aviation Administration, 800 Independence 
Ave. SW., Washington, DC 20591; telephone (202) 267-7874.

ADDRESSES: Comments must be submitted by:
     Hand Delivery/Courier: Federal Aviation Administration, 
800 Independence Avenue SW., AAS-100, Room 621, Washington DC 20590.
     FAX: (202) 267-3688.

SUPPLEMENTARY INFORMATION: Title 49 of the United States Code, section 
47108(a), provides that the Secretary may impose terms on the offer 
that the Secretary considers necessary to carry out this subchapter and 
regulations to be assumed by the sponsor. Uniform design standards for 
airports can be found in the Federal Aviation Administration advisory 
circular and mandatory use is required on all Federal Airport 
Improvement Program projects. This draft AC incorporates all previous 
changes and numerous technical updates. Change bars are used to signify 
what has changed from the previous document. Principal changes include:
    a. Section 2, applicable Documents: All download Web sites are 
updated. Document titles updated.
    b. Paragraph 3.1.3.6 is updated to include a prohibition of 
exothermic welds on galvanized steel light bases.
    c. The use of coated steel fasteners (SAE Grade2 or ASTM A307-A) 
per Engineering Brief (EB) 83, In-Pavement Light Fixture Bolts is 
introduced where applicable in the AC.
    d. Paragraph 4.3.10 is updated to replace the AC 150/5345-42F 
torque test for L868 light bases with the 150/5345-42C version.
    e. Figure 2, Body, Type L-867, Class IA, Class IB, Class IIA, Class 
IIB, is updated to show that the AAA dimension for the bottom diameter 
has increased from 13.000 inches to 13.500 inches for easier weld 
fabrication.
    f. Figure 6, Body, Type L-868, Class IA, Class IB is updated to 
show a 1/2-inch increase in the maximum AAA dimension for the bottom 
diameter for easier weld fabrication.
    g. Figure 8, Extensions, Type L-868, Class IA, Class IB is updated 
to show an increase in the extension height to order from 2.0 in. to 
2.25 in. Spacer ring maximum thickness is changed from 1-15/16 inches 
to 2-3/16 inches.
    h. Figure 8, Extensions, Type L-868, Class IA, Class IB is updated 
to show an increase in the extension height to order from 2.0 in. to 
2.25 in. Spacer ring maximum thickness is changed from 1\15/16\ inches 
to 2\3/16\ inches.

    Issued in Washington, DC, on June 15, 2012.
Michael O'Donnell,
Director, Office of Airport & Safety Standards.
[FR Doc. 2012-15790 Filed 6-27-12; 8:45 am]
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