6520 Federal Register / Vol. 77, No. 26 / Wednesday, February 8, 2012 / Proposed Rules 

Issued in Renton, Washington, on January 

25, 2012. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–2906 Filed 2–7–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0106; Directorate 

Identifier 2011–NM–150–AD] 

RIN 2120–AA64 

Airworthiness Directives; BAE 

SYSTEMS (OPERATIONS) LIMITED 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for all BAE 

SYSTEMS (OPERATIONS) LIMITED 

Model BAe 146 and Avro 146–RJ 

airplanes. This proposed AD was 

prompted by reports of baggage bay fire 

bottles that can be misassembled such 

that two squib electrical connectors can 

be cross-connected. This proposed AD 

would require a general visual 

inspection of certain baggage bay fire 

bottles for correct connection and for 

the length of the wiring loom, modifying 

the wiring loom to certain squib 

connectors, and corrective actions if 

necessary. We are proposing this AD to 

detect and correct excessive wiring 

loom length and improper connection of 

the squib connecters, which in 

conjunction with a fire in one of the 

baggage bays, could result in the fire 

extinguishing agent being discharged 

into a wrong compartment and 

consequent damage to the airplane. 

DATES: We must receive comments on 

this proposed AD by March 26, 2012. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE., Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE., Washington, DC, between 9 

a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. 

For service information identified in 

this proposed AD, contact BAE 

SYSTEMS (OPERATIONS) LIMITED, 

Customer Information Department, 

Prestwick International Airport, 

Ayrshire, KA9 2RW, Scotland, United 

Kingdom; telephone +44 1292 675207; 

fax +44 1292 675704; email 

RApublications@baesystems.com; 

Internet http://www.baesystems.com/ 

Businesses/RegionalAircraft/index.htm. 

You may review copies of the 

referenced service information at the 

FAA, Transport Airplane Directorate, 

1601 Lind Avenue SW., Renton, 

Washington. For information on the 

availability of this material at the FAA, 

call (425) 227–1221. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Operations office between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains this proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Operations 

office (telephone (800) 647–5527) is in 

the ADDRESSES section. Comments will 

be available in the AD docket shortly 

after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Todd Thompson, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA 

1601 Lind Avenue SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1175; fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2012–0106; Directorate Identifier 

2011–NM–150–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 

closing date and may amend this 

proposed AD based on those comments. 

We will post all comments we 

receive, without change, to http:// 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this proposed AD. 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA 

Airworthiness Directive 2011–0065, 

dated April 7, 2011 (referred to after this 

as ‘‘the MCAI’’), to correct an unsafe 

condition for the specified products. 

The MCAI states: 

The baggage bay fire bottles of certain BAe 

146 and AVRO 146–RJ aeroplanes can be 

misassembled such that two squib electrical 

connectors can be cross-connected. This has 

been caused by an error in the baggage bay 

fire bottle Component Manufacturer Manual 

(CMM) and by excessive wiring loom length. 

This condition, if not corrected and in 

conjunction with a fire in one of the baggage 

bays, could result in the fire extinguishant to 

be discharged into a wrong compartment and 

consequent potential damage to the aircraft 

* * *. 

In addition to the CMM revision, to 

address this unsafe condition, BAE Systems 

developed modifications to reroute the 

baggage bay fire bottle wiring looms and 

prevent crossed electrical connections. 

For the reasons described above, this 

[EASA] AD requires the implementation of 

modifications HCM36250A and HCM36250B 

to affected aeroplanes. 

Required actions include general 

visual inspections of certain baggage bay 

fire bottles for correct connection and 

for the length of the wiring loom, 

modifying the wiring loom to certain 

squib connectors, and corrective action 

if necessary. Corrective actions include 

reconnecting the squibs connectors and 

modifying the loom to proper length. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

BAE SYSTEMS (Operations) Limited 

has issued Modification Service Bulletin 

SB.26–077–36250A.B, Revision 4, dated 

January 7, 2011. The actions described 

in this service information are intended 

to correct the unsafe condition 

identified in the MCAI. 

FAA’s Determination and Requirements 

of This Proposed AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with the State of 

Design Authority, we have been notified 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are proposing this 

AD because we evaluated all pertinent 

information and determined an unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 


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Federal Register / Vol. 77, No. 26 / Wednesday, February 8, 2012 / Proposed Rules 6521 

Differences Between This Proposed AD 

and the MCAI or Service Information 

This proposed AD differs from the 

MCAI and/or service information as 

follows: The actions specified in 

paragraph (10) (test and close-up) of 

EASA AD 2011–0065, dated April 7, 

2011, are not included in this AD. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 1 product of U.S. registry. 

We also estimate that it would take 

about 6 work-hours per product to 

comply with the basic requirements of 

this proposed AD. The average labor 

rate is $85 per work-hour. Required 

parts would cost about $170 per 

product. Where the service information 

lists required parts costs that are 

covered under warranty, we have 

assumed that there will be no charge for 

these parts. As we do not control 

warranty coverage for affected parties, 

some parties may incur costs higher 

than estimated here. Based on these 

figures, we estimate the cost of the 

proposed AD on U.S. operators to be 

$680 per product. 

In addition, we estimate that any 

necessary follow-on actions would take 

about 3 work-hours and require parts 

costing $170, for a cost of $425 per 

product. We have no way of 

determining the number of products 

that may need these actions. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. ‘‘Subtitle VII: 

Aviation Programs,’’ describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in ‘‘Subtitle VII, 

Part A, Subpart III, Section 44701: 

General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

Regulatory Findings 

We determined that this proposed AD 

would not have federalism implications 

under Executive Order 13132. This 

proposed AD would not have a 

substantial direct effect on the States, on 

the relationship between the national 

Government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify this proposed regulation: 

1. Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866; 

2. Is not a ‘‘significant rule’’ under the 

DOT Regulatory Policies and Procedures 

(44 FR 11034, February 26, 1979); and 

3. Will not affect intrastate aviation in 

Alaska; and 

4. Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this proposed AD and placed it in the 

AD docket. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 14 CFR part 

39 as follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

2. The FAA amends § 39.13 by adding 

the following new AD: 

BAE SYSTEMS (OPERATIONS) LIMITED: 

Docket No. FAA–2012–0106; Directorate 

Identifier 2011–NM–150–AD. 

(a) Comments Due Date 

We must receive comments by March 26, 

2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to BAE SYSTEMS 

(OPERATIONS) LIMITED Model BAe 146– 

100A, –200A, and –300A airplanes, and 

Model Avro 146–RJ70A, 146–RJ85A, and 

146–RJ100A airplanes; certificated in any 

category; all serial numbers, on which 

modifications HCM30480A, HCM30480B, 

HCM30480C, HCM30480D, HCM30480E, or 

HCM30480F are embodied. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 26: Fire Protection. 

(e) Reason 

This AD was prompted by reports of 

baggage bay fire bottles that can be 

misassembled such that two squib electrical 

connectors can be cross-connected. We are 

issuing this AD to detect and correct 

excessive wiring loom length and improper 

connection of the squib connecters, which in 

conjunction with a fire in one of the baggage 

bays, could result in the fire extinguishing 

agent being discharged into a wrong 

compartment and consequent damage to the 

airplane. 

(f) Compliance 

You are responsible for having the actions 

required by this AD performed within the 

compliance times specified, unless the 

actions have already been done. 

(g) Inspection/Modification 

Within 3 months after the effective date of 

this AD, do the actions specified in 

paragraphs (g)(1), (g)(2), (g)(3), (g)(4), (g)(5), 

and (g)(6) of this AD. 

(1) Do a general visual inspection of 

baggage bay fire bottle WB8 having part 

number (P/N) 473997–1 for correct 

connection of the squib connectors identified 

in paragraphs (g)(1)(i) and (g)(1)(ii) of this 

AD, in accordance with paragraph 2.C.(3) of 

the Accomplishment Instructions of BAE 

SYSTEMS (OPERATIONS) LIMITED 

Modification Service Bulletin SB.26–077– 

36250A.B, Revision 4, dated January 7, 2011. 

If any items are found improperly connected, 

before further flight, reconnect the squib 

connectors properly, in accordance with 

paragraph 2.C.(3) of the Accomplishment 

Instructions of BAE SYSTEMS 

(OPERATIONS) LIMITED Modification 

Service Bulletin SB.26–077–36250A.B, 

Revision 4, dated January 7, 2011. 

(i) Squib connector WB8P1 (S1446–004A) 

and cartridge P/N 446307. 

(ii) Squib connector WB8P2 (S1446–004D) 

and squib P/N 446290. 

(2) Do a general visual inspection of the 

length of the wiring loom at the squib 

connector WB8P2 for excessive length that 

could cause the connector to become crossconnected with squib connector WB8P1, in 

accordance with paragraph 2.C.(4) of the 

Accomplishment Instructions of BAE 

SYSTEMS (OPERATIONS) LIMITED 

Modification Service Bulletin SB.26–077– 

36250A.B, Revision 4, dated January 7, 2011. 

If excessive length is found, before further 

flight, modify the loom, in accordance with 

paragraph 2.C.(4) of the Accomplishment 

Instructions of BAE SYSTEMS 

(OPERATIONS) LIMITED Modification 

Service Bulletin SB.26–077–36250A.B, 

Revision 4, dated January 7, 2011. 

(3) Do a general visual inspection of 

baggage bay fire bottle WB7 having P/N 

473996–1 for correct connection of squib 

connectors identified in paragraphs (g)(3)(i) 

and (g)(3)(ii) of this AD, in accordance with 

paragraph 2.C.(5) of the Accomplishment 

Instructions of BAE SYSTEMS 

(OPERATIONS) LIMITED Modification 

Service Bulletin SB.26–077–36250A.B, 

Revision 4, dated January 7, 2011. If any 

items are found improperly connected, before 

further flight, reconnect the squib connectors 


pmangrum on DSK3VPTVN1PROD with PROPOSALS-1
6522 Federal Register / Vol. 77, No. 26 / Wednesday, February 8, 2012 / Proposed Rules 

properly, in accordance with paragraph 

2.C.(5) of the Accomplishment Instructions of 

BAE SYSTEMS (OPERATIONS) LIMITED 

Modification Service Bulletin SB.26–077– 

36250A.B, Revision 4, dated January 7, 2011. 

(i) Squib connector WB7P1 (S1446–004A) 

and cartridge P/N 446307. 

(ii) Squib connector WB7P2 (S1446–004D) 

and squib P/N 446290. 

(4) Modify the wiring loom to squib 

connector WB7P2, in accordance with 

paragraphs 2.C.(6)(a) and 2.C.(6)(c) of the 

Accomplishment Instructions of BAE 

SYSTEMS (OPERATIONS) LIMITED 

Modification Service Bulletin SB.26–077– 

36250A.B, Revision 4, dated January 7, 2011. 

(5) Modify the wiring loom to squib 

connector WB7P1, in accordance with 

paragraph 2.C.(6)(b) of the Accomplishment 

Instructions of BAE SYSTEMS 

(OPERATIONS) LIMITED Modification 

Service Bulletin SB.26–077–36250A.B, 

Revision 4, dated January 7, 2011. 

(6) Install modification HCM36250B, in 

accordance with paragraph 2.C.(7) of the 

Accomplishment Instructions of BAE 

SYSTEMS (OPERATIONS) LIMITED Service 

Bulletin SB.26–077–36250A.B, Revision 4, 

dated January 7, 2011. 

Note 1 to paragraph (g): Guidance for test 

and close-up procedures can be found in 

paragraphs 2.D. and 2.E. of the 

Accomplishment Instructions of BAE 

SYSTEMS (OPERATIONS) LIMITED 

Modification Service Bulletin SB.26–077– 

36250A.B, Revision 4, dated January 7, 2011. 

(h) Credit for Actions Accomplished in 

Accordance With Previous Service 

Information 

Installing modification HCM36250A in 

accordance with the service information 

specified in paragraphs (h)(1), (h)(2), (h)(3), 

or (h)(4) of this AD before the effective date 

of this AD is acceptable for compliance with 

the actions specified in paragraphs (g)(1), 

(g)(2), (g)(3), (g)(4), and (g)(5) of this AD. 

(1) BAE SYSTEMS (OPERATIONS) 

LIMITED Modification Service Bulletin 

SB.26–077–36250A, dated September 4, 

2009. 

(2) BAE SYSTEMS (OPERATIONS) 

LIMITED Modification Service Bulletin 

SB.26–077–36250A, Revision 1, dated 

September 11, 2009. 

(3) BAE SYSTEMS (OPERATIONS) 

LIMITED Modification Service Bulletin 

SB.26–077–36250A.B, Revision 2, dated 

October 14, 2010. 

(4) BAE SYSTEMS (OPERATIONS) 

LIMITED Modification Service Bulletin 

SB.26–077–36250A.B, Revision 3, dated 

November 23, 2010. 

(i) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, FAA, has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. In 

accordance with 14 CFR 39.19, send your 

request to your principal inspector or local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the International Branch, send it to Attn: 

Todd Thompson, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA 1601 Lind Avenue 

SW., Renton, Washington 98057–3356; 

telephone (425) 227–1175; fax (425) 227– 

1149. Information may be emailed to: 

9-ANM-116-AMOC-REQUESTS@faa.gov. 

Before using any approved AMOC, notify 

your appropriate principal inspector, or 

lacking a principal inspector, the manager of 

the local flight standards district office/ 

certificate holding district office. The AMOC 

approval letter must specifically reference 

this AD. 

(2) Airworthy Product: For any requirement 

in this AD to obtain corrective actions from 

a manufacturer or other source, use these 

actions if they are FAA-approved. Corrective 

actions are considered FAA-approved if they 

are approved by the State of Design Authority 

(or their delegated agent). You are required 

to assure the product is airworthy before it 

is returned to service. 

(j) Related Information 

Refer to MCAI European Aviation Safety 

Agency Airworthiness Directive 2011–0065, 

dated April 7, 2011; and BAE SYSTEMS 

(OPERATIONS) LIMITED Modification 

Service Bulletin SB.26–077–36250A.B, 

Revision 4, dated January 7, 2011; for related 

information. 

Issued in Renton, Washington, on January 

26, 2012. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–2908 Filed 2–7–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0105; Directorate 

Identifier 2011–NM–123–AD] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for certain 

The Boeing Company Model 777 

airplanes. This proposed AD was 

prompted by reports of fractured and 

missing latch pin retention bolts that 

secure the latch pins on the forward 

cargo door. This proposed AD would 

require repetitive detailed inspections 

for fractured or missing latch pin 

retention bolts, replacement of existing 

titanium bolts with new Inconel bolts, 

and related investigative and corrective 

actions if necessary. We are proposing 

this AD to detect and correct fractured 

and missing latch pin retention bolts, 

which could result in potential 

separation of the cargo door from the 

airplane and catastrophic 

decompression of the airplane. 

DATES: We must receive comments on 

this proposed AD by March 26, 2012. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE., Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 

5 p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this proposed AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, Washington 98124– 

2207; telephone (206) 544–5000, 

extension 1; fax (206) 766–5680; email 

me.boecom@boeing.com; Internet 

https://www.myboeingfleet.com. You 

may review copies of the referenced 

service information at the FAA, 

Transport Airplane Directorate, 1601 

Lind Avenue SW., Renton, Washington. 

For information on the availability of 

this material at the FAA, call (425) 227– 

1221. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Management Facility between 

9 a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. The AD 

docket contains this proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Office 

(phone: (800) 647–5527) is in the 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

FOR FURTHER INFORMATION CONTACT: Ana 

Martinez Hueto, Aerospace Engineer, 

Cabin Safety and Environmental 

Systems Branch, ANM–150S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue SW., Renton, WA 

98057–3356; phone: (425) 917–6592; 

fax: (425) 917–6590; email: 

ana.m.hueto@faa.gov. 


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