Federal Register / Vol. 76, No. 196 / Tuesday, October 11, 2011 / Proposed Rules 62653 

Credit for Actions Accomplished in 

Accordance with Previous Service 

Information 

(j) Replacements done before the effective 

date of this AD in accordance with the 

Accomplishment Instructions of Boeing 

Special Attention Service Bulletin 737–78– 

1074, dated April 7, 2005, are acceptable for 

compliance with the requirements of 

paragraph (h) of this AD. 

Alternative Methods of Compliance 

(AMOCs) 

(k)(1) The Manager, Seattle Aircraft 

Certification Office (ACO), 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 manager of the ACO, send it to the 

attention of the person identified in the 

Related Information section of this AD. 

Information may be e-mailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. 

(2) 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. 

Related Information 

(l) For more information about this AD, 

contact Chris Parker, Aerospace Engineer, 

Propulsion Branch, ANM–140S, 1601 Lind 

Avenue, SW., Renton, Washington 98057– 

3356; phone: 425–917–6496; fax: 425–917– 

6590; e-mail: chris.r.parker@faa.gov. 

(m) For service information identified in 

this 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; e-mail 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. 

Issued in Renton, Washington, on 

September 30, 2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–26104 Filed 10–7–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–1060; Directorate 

Identifier 2011–NM–015–AD] 

RIN 2120–AA64 

Airworthiness Directives; Airbus Model 

A310 Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for the 

products listed above that would 

supersede an existing AD. This 

proposed AD results from mandatory 

continuing airworthiness information 

(MCAI) originated by an aviation 

authority of another country to identify 

and correct an unsafe condition on an 

aviation product. The MCAI describes 

the unsafe condition as: 

Within the scope of the Fuel System Safety 

Program (FSSP), analyses of the wire routing 

showed that the route 2S of the fuel electrical 

circuit in the Right Hand (RH) wing must be 

modified in order to ensure better segregation 

between fuel quantity indication wires and 

the 115 Volts Alternating Current (VAC) 

wires of route 2S. 

This condition, if not corrected, could 

result in short circuits leading to arcing, and 

possible fuel tank explosion. 

* * * * * 

The proposed AD would require actions 

that are intended to address the unsafe 

condition described in the MCAI. 

DATES: We must receive comments on 

this proposed AD by November 25, 

2011. 

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 Airbus SAS– 

EAW (Airworthiness Office), 1 Rond 

Point Maurice Bellonte, 31707 Blagnac 

Cedex, France; telephone +33 5 61 93 36 

96; fax +33 5 61 93 44 51; e-mail: 

account.airworth-eas@airbus.com; 

Internet http://www.airbus.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 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: Dan 

Rodina, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–2125; 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–2011–1060; Directorate Identifier 

2011–NM–015–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 

On January 3, 2008, we issued AD 

2008–01–05, Amendment 39–15330 (73 

FR 2795, January 16, 2008). That AD 

required actions intended to address an 

unsafe condition on the products listed 

above. 

Since we issued AD 2008–01–05, 

Amendment 39–15330 (73 FR 2795, 

January 16, 2008), we have determined 


srobinson on DSK4SPTVN1PROD with PROPOSALS
62654 Federal Register / Vol. 76, No. 196 / Tuesday, October 11, 2011 / Proposed Rules 

that the route 2S of the fuel electrical 

circuit in the right hand wing must be 

modified to ensure better segregation 

between fuel quantity indication wires 

and the 115 volts alternating current 

wires of route 2S. The European 

Aviation Safety Agency (EASA), which 

is the Technical Agent for the Member 

States of the European Community, has 

issued EASA Airworthiness Directive 

2011–0005, dated January 17, 2011 

(referred to after this as ‘‘the MCAI’’), to 

correct an unsafe condition for the 

specified products. The MCAI states: 

Within the scope of the Fuel System Safety 

Program (FSSP), analyses of the wire routing 

showed that the route 2S of the fuel electrical 

circuit in the Right Hand (RH) wing must be 

modified in order to ensure better segregation 

between fuel quantity indication wires and 

the 115 Volts Alternating Current (VAC) 

wires of route 2S. 

This condition, if not corrected, could 

result in short circuits leading to arcing, and 

possible fuel tank explosion. 

To address this unsafe condition, 

[Direction Ge ́ne ́rale de l’Aviation Civile] 

DGAC France issued AD 2002–578(B) [which 

corresponds to FAA AD 2004–15–16, 

Amendment 39–13750 (69 FR 45578, July 30, 

2004)] to require improvements of the design 

as specified in Airbus Service Bulletin (SB) 

A310–28–2148 original issue or Revision 01. 

EASA AD 2007–0230 [which corresponds to 

FAA AD 2008–01–05 (73 FR 2795, January 

16, 2008)], which superseded DGAC France 

AD 2002–578(B), required those same 

actions, plus additional work as defined in 

Airbus SB A310–28–2148 Revision 02. 

Since EASA AD 2007–0230 was issued, an 

operator reported the possibility of chafing 

with the new routing of the wire bundle 2S 

in the RH wing pylon area to the generator 

wire bundle of engine 2. The modification of 

this zone was introduced by A310–28–2148 

Revision 02 as additional work. Investigation 

showed that, to avoid the risk of chafing, the 

affected wiring harnesses must be installed at 

a higher position to provide sufficient 

clearance with the newly routed wire bundle 

2S conduit. 

Airbus published Revision 03 of SB A310– 

28–2148 to describe these changes, but a new 

interference has been found and requires 

updating SB A310–28–2148 to Revision 04 

[or 05]. 

For the reasons described above, this new 

[EASA] AD retains the requirements of EASA 

AD 2007–0230, which is superseded, and 

requires the additional work as specified in 

Revision 04 [or 05] of Airbus SB A310–28– 

2148. 

Required actions include modifying the 

wire routings and installing a modified 

bracket. You may obtain further 

information by examining the MCAI in 

the AD docket. 

Relevant Service Information 

Airbus has issued Mandatory Service 

Bulletin A310–28–2148, Revision 05, 

dated August 3, 2010. 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. 

Differences Between This AD and the 

MCAI or Service Information 

We have reviewed the MCAI and 

related service information and, in 

general, agree with their substance. But 

we might have found it necessary to use 

different words from those in the MCAI 

to ensure the AD is clear for U.S. 

operators and is enforceable. In making 

these changes, we do not intend to differ 

substantively from the information 

provided in the MCAI and related 

service information. 

We might also have proposed 

different actions in this AD from those 

in the MCAI in order to follow FAA 

policies. Any such differences are 

highlighted in a NOTE within the 

proposed AD. 

Costs of Compliance 

We estimate that this proposed AD 

would affect 61 airplanes of U.S. 

registry. The following table provides 

the estimated costs for U.S. operators to 

comply with this proposed AD. 

TABLE—ESTIMATED COSTS

Action Work 

hours 

Average 

labor rate 

per hour 

Parts Cost per 

airplane 

Number 

of U.S.- 

registered 

airplanes 

Fleet cost 

Modification (required by AD 2004–15–16, Amendment 39-13750 

(69 FR 45578, July 30, 2004)) ....................................................... 35 $85 $4,459 $7,434 68 $505,512 

Modification (required by AD 2008–01–05, Amendment 39-15330 

(73 FR 2795, January 16, 2008)) .................................................. 22 85 1,870 3,740 68 254,320 

Modification (new proposed action) ................................................... 62 85 2,210 7,480 61 456,280 

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 have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 


srobinson on DSK4SPTVN1PROD with PROPOSALS
Federal Register / Vol. 76, No. 196 / Tuesday, October 11, 2011 / Proposed Rules 62655 

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 

removing Amendment 39–15330 (73 FR 

2795, January 16, 2008) and adding the 

following new AD: 

Airbus: Docket No. FAA–2011–1060; 

Directorate Identifier 2011–NM–015–AD. 

Comments Due Date 

(a) We must receive comments by 

November 25, 2011. 

Affected ADs 

(b) This AD supersedes AD 2008–01–05, 

Amendment 39–15330 (73 FR 2795, January 

16, 2008). 

Applicability 

(c) This AD applies to Airbus Model A310– 

203, –204, –221, –222, –304, –322, –324, and 

–325 airplanes; certificated in any category; 

all serial numbers. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 28: Fuel. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

Within the scope of the Fuel System Safety 

Program (FSSP), analyses of the wire routing 

showed that the route 2S of the fuel electrical 

circuit in the Right Hand (RH) wing must be 

modified in order to ensure better segregation 

between fuel quantity indication wires and 

the 115 Volts Alternating Current (VAC) 

wires of route 2S. 

This condition, if not corrected, could 

result in short circuits leading to arcing, and 

possible fuel tank explosion. 

* * * * * 

Compliance 

(f) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified, unless the 

actions have already been done. 

Restatement of Requirements of AD 2004– 

15–16 Amendment 39–13750 (69 FR 45578, 

July 30, 2004), With New Service 

Information 

Modification 

(g) For all airplanes except airplanes on 

which Airbus Service Bulletin A310–28– 

2148, Revision 02, dated March 9, 2007, has 

been done (Airbus Modifications 12427 and 

12435): Within 4,000 flight hours after 

September 3, 2004 (the effective date of AD 

2004–15–16 (69 FR 45578, July 30, 2004)), 

modify the routing of wires in the RH wing 

by installing cable sleeves, per the 

Accomplishment Instructions of Airbus 

Service Bulletin A310–28–2148, Revision 01, 

dated October 29, 2002; Revision 02, dated 

March 9, 2007; or Revision 05, dated August 

3, 2010. As of February 20, 2008 (the 

effective date of AD 2008–01–05, 

Amendment 39–15330 (73 FR 2795, January 

16, 2008)), Revision 02 must be used. As of 

the effective date of this AD, Revision 05 

must be used. 

Actions Accomplished Previously 

(h) Modification of the routing of wires 

accomplished before September 3, 2004, per 

Airbus Service Bulletin A310–28–2148, 

dated January 23, 2002, is acceptable for 

compliance with the corresponding 

requirements of paragraph (g) of this AD. 

Restatement of Requirements of AD 2008– 

01–05, Amendment 39–15330 (73 FR 2795, 

January 16, 2008), With New Service 

Information 

Modification (Additional Work) 

(i) For airplanes on which the actions 

specified in Airbus Service Bulletin A310– 

28–2148, dated January 23, 2002; or Airbus 

Service Bulletin A310–28–2148, Revision 01, 

dated October 29, 2002; have been done 

before February 20, 2008, except for airplanes 

on which Airbus Service Bulletin A310–28– 

2148, Revision 02, dated March 9, 2007, has 

been done (Airbus Modifications 12427 and 

12435): Within 6,000 flight hours or 30 

months after February 20, 2008, whichever 

occurs first, perform further modification by 

installing additional protection sleeves in the 

outer wing area near the cadensicon sensor 

and segregating wire route 2S in the RH 

pylon area, in accordance with the 

Accomplishment Instructions of Airbus 

Service Bulletin A310–28–2148, Revision 02, 

dated March 9, 2007; or Revision 05, dated 

August 3, 2010. As of the effective date of 

this AD, Revision 05 must be used. 

New Requirements of This AD 

Additional Modification/Installation for 

Certain Airplanes 

(j) For airplanes on which the actions 

specified in Airbus Service Bulletin A310– 

28–2148, Revision 02, dated March 9, 2007, 

have been accomplished, and do not have 

production modification 07633 and on which 

Airbus Service Bulletin A310–36–2015 has 

not been done: Within 6,000 flight hours or 

30 months after the effective date of this AD, 

whichever occurs first, modify the wire 

routings, in accordance with the 

Accomplishment Instructions of Airbus 

Service Bulletin A310–28–2148, Revision 05, 

dated August 3, 2010. 

(k) For airplanes on which the actions 

specified in Airbus Service Bulletin A310– 

28–2148, Revision 02, dated March 9, 2007, 

have been accomplished, and have 

production modification 07633 or on which 

Airbus Service Bulletin A310–36–2015 has 

been done: Within 1,000 flight hours after the 

effective date of this AD, install a modified 

bracket, in accordance with paragraph 3.B.(7) 

‘‘Additional Work 2’’ of the Accomplishment 

Instructions of Airbus Service Bulletin A310– 

28–2148, Revision 05, dated August 3, 2010. 

(l) For airplanes on which the actions 

specified in Airbus Service Bulletin A310– 

28–2148, Revision 03, dated June 2, 2009, 

have been accomplished; and have 

modification 07633 done in production or on 

which the actions specified in Airbus Service 

Bulletin A310–36–2015 have been done; no 

further action is required by this AD. 

Credit for Actions Accomplished in 

Accordance With Previous Service 

Information 

(m) Modifications done in accordance with 

Airbus Service Bulletin A310–28–2148, 

Revision 04, dated April 14, 2010, before the 

effective date of this AD are acceptable for 

compliance with the corresponding 

modification required by paragraph (g), (i), 

(j), and (k) of this AD. 

FAA AD Differences 

Note 1: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 

Other FAA AD Provisions 

(n) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, Transport Airplane 

Directorate, 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: 

Dan Rodina, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue, SW., Renton, Washington 98057– 

3356; telephone (425) 227–2125; fax (425) 

227–1149. Information may be e-mailed 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. AMOCs approved previously in 

accordance with AD 2008–01–05, 

Amendment 39–15330 (73 FR 2795, January 

16, 2008), are approved as AMOCs for the 

corresponding provisions of 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 


srobinson on DSK4SPTVN1PROD with PROPOSALS
62656 Federal Register / Vol. 76, No. 196 / Tuesday, October 11, 2011 / Proposed Rules 

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. 

Related Information 

(o) Refer to MCAI European Aviation 

Safety Agency (EASA) Airworthiness 

Directive 2011–0005, dated January 17, 2011; 

and Airbus Service Bulletin A310–28–2148, 

Revision 05, dated August 3, 2010; for related 

information. 

Issued in Renton, Washington, on 

September 28, 2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–26106 Filed 10–7–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–1062; Directorate 

Identifier 2011–NM–038–AD] 

RIN 2120–AA64 

Airworthiness Directives; Saab AB, 

Saab Aerosystems Model 340A (SAAB/ 

SF340A) and SAAB 340B Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for the 

products listed above that would 

supersede an existing AD. This 

proposed AD results from mandatory 

continuing airworthiness information 

(MCAI) originated by an aviation 

authority of another country to identify 

and correct an unsafe condition on an 

aviation product. The MCAI describes 

the unsafe condition as: 

In 2003, a number of reports had been 

received concerning broken wires and 

corroded connectors in the SAAB 340 main 

landing gear (MLG) emergency release 

system. The investigation results showed that 

these were due to improper repairs and 

installations, not conforming to the approved 

type design. 

This condition, if not corrected, could 

inhibit the functioning of the separation bolt, 

preventing proper release of the MLG during 

an emergency situation, possibly resulting in 

damage to aeroplane during landing and 

injury to the occupants. 

* * * * * 

The proposed AD would require 

actions that are intended to address the 

unsafe condition described in the MCAI. 

DATES: We must receive comments on 

this proposed AD by November 25, 

2011. 

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 Saab AB, 

Saab Aerosystems, SE–581 88, 

Linko ̈ping, Sweden; telephone +46 13 

18 5591; fax +46 13 18 4874; e-mail 

saab2000.techsupport@saabgroup.com; 

Internet http://www.saabgroup.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 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: 

Shahram Daneshmandi, Aerospace 

Engineer, International Branch, ANM– 

116, Transport Airplane Directorate, 

FAA, 1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1112; 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–2011–1062; Directorate Identifier 

2011–NM–038–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 

On May 28, 2004, we issued AD 

2004–12–03, Amendment 39–13662 (69 

FR 35235, June 24, 2004). That AD 

required actions intended to address an 

unsafe condition on the products listed 

above. 

Since we issued AD 2004–12–03, 

Amendment 39–13662 (69 FR 35235, 

June 24, 2004), we have received reports 

that the previous modification does not 

fully meet the expected results; 

therefore, an improved separation bolt 

harness having part number (P/N) 

7292520–691 has been designed to 

replace the current separation bolt 

harness having P/N 7292520–678. The 

European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA 

Airworthiness Directive 2011–0003, 

dated January 17, 2011 (referred to after 

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

condition for the specified products. 

The MCAI states: 

In 2003, a number of reports had been 

received concerning broken wires and 

corroded connectors in the SAAB 340 main 

landing gear (MLG) emergency release 

system. The investigation results showed that 

these were due to improper repairs and 

installations, not conforming to the approved 

type design. 

This condition, if not corrected, could 

inhibit the functioning of the separation bolt, 

preventing proper release of the MLG during 

an emergency situation, possibly resulting in 

damage to aeroplane during landing and 

injury to the occupants. 

To address that unsafe condition, Swedish 

AD (SAD) 1–186 was issued to require an 

inspection and, depending on findings, 

corrective action, in accordance with SAAB 

Service Bulletin (SB) 340–32–127. 

Subsequently, Saab introduced a 

modification to ensure correct functioning of 

the MLG emergency release system. 

Accomplishment of that modification (SAAB 

SB 340–32–128) was made mandatory by 

SAD 1–189 [which corresponds to FAA AD 

2004–12–03 (69 FR 35235, June 24, 2004)]. 

Since that [SAD] AD was issued, service 

experience has shown that this modification 

does not fully meet the expected results. 

Prompted by these findings, SAAB has 

developed an improved separation bolt 

harness with a new routing. 

For the reasons described above, this AD 

requires replacement of the current 


srobinson on DSK4SPTVN1PROD with PROPOSALS