Federal Register / Vol. 70, No. 193 / Thursday, October 6, 2005 / Notices 58563 

formed an Aging Nonstructural Systems 

study team. This team, led by the 

Transport Airplane Directorate (TAD), 

conducted an inspection of systems in 

several aging airplanes. It then met with 

FAA principal maintenance inspectors 

(PMI) tasked with oversight of major air 

carriers to evaluate the need for 

additional work in addressing the 

commission’s concerns. The team 

concluded that additional work was 

warranted and that industry 

involvement in this work was essential. 

The elements of the Aging 

Nonstructural Systems Plan were 

grouped into five major tasks. One task 

was to define standards for a simplified 

chapter 20, commonly referred to as the 

standard wiring practices manual 

(SWPM), of manufacturers’ airplane 

maintenance manuals, and to define a 

process for training development based 

on the airline’s customized chapter 20. 

This task was assigned to industryrepresented Task 4 Working Group. 

The tasking statement assigned to the 

Task 4 Working Group also required the 

group to consider ‘‘simplification’’ of 

chapter 20 of wiring diagram manuals 

(WDM). The working group concluded 

that simplification of the chapter 20 

SWPM by end users was not appropriate 

for several reasons: 

1. It would not be practical, because 

end-users do not have access to the 

source data. 

2. It would result in different 

standards from one end-user to another. 

3. End-users would need the details 

for inspection, maintenance, and repair 

that are currently in the manufacturer’s 

SWPM. 

At the conclusion of Aging Transport 

Non-Structural Systems Plan Phase I, 

the Task 4 Working Group stated that 

the current presentation and 

arrangement of standard wiring 

practices make it difficult for an aircraft 

maintenance technician to locate and 

extract pertinent and applicable data 

necessary to effect satisfactory electrical 

repairs. 

Subsequent tasks assigned to the 

Standard Wire Practice Manual 

Harmonization Working Group required 

the development of a standardized 

SWPM format and a definition of the 

minimum content to be included in an 

SWPM. 

This guidance presents one means, 

but not the only means, of complying 

with the part 25 revisions proposed in 

Notice No. 05–08, entitled ‘‘Enhanced 

Airworthiness Program for Airplane 

Systems/Fuel Tank Safety (EAPAS/ 

FTS),’’ published in this same edition of 

the Federal Register. Issuance of AC 25–

YY is contingent on final adoption of 

the proposed revisions to part 25. 

Issued in Washington, DC, on September 

22, 2005. 

John J. Hickey, 

Director, Aircraft Certification Service. 

[FR Doc. 05–19409 Filed 10–5–05; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

Proposed Advisory Circular 120–YY, 

‘‘Aircraft Electrical Wiring 

Interconnection Systems Training 

Program’’

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of availability and 

request for comments. 

SUMMARY: This notice announces the 

availability of and requests comments 

on a proposed advisory circular (AC) 

that sets forth acceptable methods of 

developing a training program for 

electrical wiring interconnection 

systems. This proposed AC 

complements revisions to the 

airworthiness standards that are being 

proposed by a separate notice. This 

notice is necessary to give all interested 

persons an opportunity to present their 

views on the proposed AC. 

DATES: Comments must be received on 

or before December 5, 2005. 

ADDRESSES: Send all comments on the 

proposed AC to: Federal Aviation 

Administration, Attention: Stephen 

Slotte, ANM–111, Airplane & Flight 

Crew Interface, Federal Aviation 

Administration, 1601 Lind Avenue SW., 

Renton, WA 98055–4056; telephone 

(425) 227–2315; facsimile (425) 227–

1320, e-mail steve.slotte@faa.gov. 

Comments may be inspected at the 

above address between 7:30 a.m. and 4 

p.m. weekdays, except Federal holidays. 

FOR FURTHER INFORMATION CONTACT: 

Annette Kovite, Transport Standards 

Staff, at the address above, telephone 

(425) 227–1262. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

Interested persons are invited to 

comment on the proposed AC by 

submitting such written data, views, or 

arguments as they may desire. 

Commenters should identify AC 120–

YY and submit comments, in duplicate, 

to the address specified above. All 

communications received on or before 

the closing date for comments will be 

considered by the FAA before issuing 

the final AC. The proposed AC can be 

found and downloaded from the 

Internet at http://www.airweb.faa.gov/ 

rgl under ‘‘Draft Advisory Circulars.’’ A 

paper copy of the proposed AC may be 

obtained by contacting the person 

named above under the caption FOR

FURTHER INFORMATION CONTACT. 

Discussion 

This proposed AC provides guidance 

for developing an electrical wiring 

interconnection systems training 

program. This guidance is directed to air 

carriers, air operators, repair stations, 

and maintenance providers. It may also 

be used by type certificate holders, 

supplemental type certificate holders, 

and persons performing field approval 

modifications or repairs. The 

recommendations in this proposed AC 

can be applied to any aircraft training 

program. 

Issued in Washington, DC, on September 

22, 2005. 

James J. Ballough, 

Director, Flight Standards Service, Aviation 

Safety. 

John J. Hickey, 

Director, Aircraft Certification Service, 

Aviation Safety. 

[FR Doc. 05–19410 Filed 10–5–05; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

Proposed Advisory Circular 25.869–1, 

‘‘Fire Protection Systems’’

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of availability and 

request for comments. 

SUMMARY: This notice announces the 

availability of and requests comments 

on a proposed advisory circular (AC) 

that sets forth acceptable methods of 

compliance with §§ 25.863 and 25.869 

concerning flammable fluid fire 

protection and fire protection systems. 

This proposed AC complements 

revisions to the airworthiness standards 

that are being proposed by a separate 

notice. This notice is necessary to give 

all interested persons an opportunity to 

present their views on the proposed AC. 

DATES: Comments must be received on 

or before December 5, 2005. 

ADDRESSES: Send all comments on the 

proposed AC to: Federal Aviation 

Administration, Attention: Stephen 

Slotte, ANM–111, Airplane & Flight 

Crew Interface, Federal Aviation 

Administration, 1601 Lind Avenue SW., 

Renton, WA 98055–4056; telephone 

(425) 227–2315; facsimile (425) 227–

1320, e-mail steve.slotte@faa.gov.