19246 Federal Register / Vol. 80, No. 69 / Friday, April 10, 2015 / Proposed Rules 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–0682; Directorate 

Identifier 2014–NM–074–AD] 

RIN 2120–AA64 

Airworthiness Directives; ATR—GIE 

Avions de Transport Re ́gional 

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 

ATR—GIE Avions de Transport 

Re ́gional Model ATR42 and ATR72 

airplanes. This proposed AD was 

prompted by new occurrences of certain 

cracked main landing gear (MLG) rear 

hinge pins. This proposed AD would 

require identifying the serial number 

and part number of the MLG rear hinge 

pins, and replacement of pins or the 

MLG if necessary. We are proposing this 

AD to detect and correct cracked rear 

hinge pins, which could lead to MLG 

structural failure, possibly resulting in 

collapse of the MLG and consequent 

injury to the occupants of the airplane. 

DATES: We must receive comments on 

this proposed AD by May 26, 2015. 

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: 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 Messier-Bugatti-Dowty service 

information identified in this proposed 

AD, contact ATR–GIE Avions de 

Transport Re ́gional, 1, Alle ́e Pierre 

Nadot, 31712 Blagnac Cedex, France; 

telephone +33 (0) 5 62 21 62 21; fax +33 

(0) 5 62 21 67 18; email 

continued.airworthiness@atr.fr; Internet 

http://www.aerochain.com. You may 

view this referenced service information 

at the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue SW., 

Renton, WA. 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 by searching for 

and locating Docket No. FAA–2015– 

0682; 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 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: Tom 

Rodriguez, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue SW., Renton, WA 

98057–3356; telephone 425–227–1137; 

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–2015–0682; Directorate Identifier 

2014–NM–074–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 

Union, has issued EASA Airworthiness 

Directive 2014–0074, dated March 21, 

2014 (referred to after this as the 

Mandatory Continuing Airworthiness 

Information, or ‘‘the MCAI’’), to correct 

an unsafe condition for all ATR–GIE 

Avions de Transport Re ́gional Model 

ATR42 and ATR72 airplanes. The MCAI 

states: 

Prompted by cases of rupture of Main 

Landing Gear (MLG) rear hinge pin part 

number (P/N) D61000 encountered in service 

in 1994 and 1996, DGAC France issued [an] 

AD * * * for ATR 42 aeroplanes and 

[another] AD * * * for ATR 72 aeroplanes to 

require inspection and, depending on 

findings, corrective action. 

Since those [French] ADs were issued, new 

occurrences of cracked rear hinge pin P/N 

D61000 were reported on ATR72 MLG. 

The result of subsequent investigation 

revealed that the affected pins were subjected 

to a non-detected thermal abuse done in 

production during grinding process. Analysis 

also showed that other MLG pin P/N’s could 

be affected by the same nonconformity. 

This condition, if not detected and 

corrected, could lead to MLG structural 

failure, possibly resulting in collapse of the 

MLG and consequently injury to the 

occupants of the aeroplane. 

For the reasons described above, this 

[EASA] AD requires inspection and, 

depending on findings, replacement of 

affected pins. 

You may examine the MCAI in the 

AD docket on the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2015– 

0682. 

Related Service Information Under 1 

CFR Part 51 

Messier-Bugatti-Dowty has issued the 

following service information. 

• Service Bulletin 631–32–213, dated 

December 16, 2013, which describes 

procedures for inspecting the MLG 

hinge pin. 

• Service Bulletin 631–32–214, dated 

January 13, 2014, which describes 

procedures for inspecting the MLG pins. 

• Service Bulletin 631–32–215, dated 

January 13, 2014, which describes 

procedures for inspecting the MLG pins. 

• Service Bulletin 631–32–216, 

Revision 1, December 17, 2013, which 

describes procedures for inspecting the 

MLG hinge pin. 

• Service Bulletin 631–32–219, dated 

March 3, 2014, which describes 

procedures for inspecting the MLG 

hinge pin. 

• Service Bulletin 631–32–220, dated 

March 3, 2014, which describes 

procedures for inspecting the MLG 

hinge pin. 

The actions described in this service 

information are intended to correct the 

unsafe condition identified in the 

MCAI. This service information is 

reasonably available; see ADDRESSES for 

ways to access this service information. 

Service Information Correction 

Messier-Bugatti-Dowty Service 

Bulletin 631–32–215, dated January 13, 

2014, has a typo for the issue month 

listed in the service bulletin. The month 

listed for Messier-Bugatti-Dowty Service 

Bulletin 631–32–215, dated January 13, 

2014, should read ‘‘January’’ instead of 

‘‘Juanary.’’ 


rljohnson on DSK3VPTVN1PROD with PROPOSALS
Federal Register / Vol. 80, No. 69 / Friday, April 10, 2015 / Proposed Rules 19247 

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 these same 

type designs. 

Costs of Compliance 

We estimate that this proposed AD 

affects 81 airplanes of U.S. registry. 

We also estimate that it would take 

about 8 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 $16,000 per 

product. Based on these figures, we 

estimate the cost of this proposed AD on 

U.S. operators to be $1,351,080, or 

$16,680 per product. 

According to the manufacturer, some 

of the costs of this proposed AD may be 

covered under warranty, thereby 

reducing the cost impact on affected 

individuals. We do not control warranty 

coverage for affected individuals. As a 

result, we have included all costs in our 

cost estimate. 

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); 

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. 

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 airworthiness 

directive (AD): 

ATR–GIE Avions de Transport Re ́gional: 

Docket No. FAA–2015–0682; Directorate 

Identifier 2014–NM–074–AD. 

(a) Comments Due Date 

We must receive comments by May 26, 

2015. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to ATR–GIE Avions de 

Transport Re ́gional Model ATR42–200, –300, 

–320, and –500 airplanes; and Model 

ATR72–101, –201, –102, –202, –211, –212, 

and –212A airplanes; certificated in any 

category; all certified models; all 

manufacturer serial numbers. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 32, Landing Gear. 

(e) Reason 

This AD was prompted by new 

occurrences of certain cracked main landing 

gear (MLG) rear hinge pins. We are issuing 

this AD to detect and correct cracked rear 

hinge pins, which could lead to MLG 

structural failure, possibly resulting in 

collapse of the MLG and consequent injury 

to the occupants of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Hinge Pin Identification and Replacement 

for Model ATR72 Airplanes 

For Model ATR72 airplanes: Within 12 

months after the effective date of this AD, 

inspect for the serial number of the left-hand 

(LH) and right-hand (RH) MLG rear hinge 

pins having part number (P/N) D61000. A 

review of airplane maintenance records is 

acceptable in lieu of this identification if the 

part number and serial number of the LH and 

RH MLG rear hinge pins can be conclusively 

determined from that review. If a rear hinge 

pin having P/N D61000 has a serial number 

listed in Messier-Bugatti-Dowty Service 

Bulletin 631–32–213, dated December 16, 

2013; or Messier-Bugatti-Dowty Service 

Bulletin 631–32–216, Revision 1, December 

17, 2013; as applicable: Within 12 months 

after the effective date of this AD, replace the 

pin with a serviceable part as identified in 

paragraph (h) of this AD, in accordance with 

the Accomplishment Instructions of MessierBugatti-Dowty Service Bulletin 631–32–213, 

dated December 16, 2013; or Messier-BugattiDowty Service Bulletin 631–32–216, 

Revision 1, dated December 17, 2013; as 

applicable. 

(h) Definition of Serviceable Hinge Pin for 

Model ATR72 Airplanes 

For Model ATR72 airplanes: For purposes 

of paragraph (g) of this AD, a serviceable 

MLG rear hinge pin is a pin that is specified 

in paragraph (h)(1) or (h)(2) of this AD. 

(1) A hinge pin that is not identified in 

Messier-Bugatti-Dowty Service Bulletin 631– 

32–213, dated December 16, 2013; or 

Messier-Bugatti-Dowty Service Bulletin 631– 

32–216, Revision 1, dated December 17, 

2013; as applicable. 

(2) A hinge pin that has been inspected and 

reconditioned, in accordance with the 

Accomplishment Instructions of MessierBugatti-Dowty Service Bulletin 631–32–213, 

dated December 16, 2013; or Messier-BugattiDowty Service Bulletin 631–32–216, 

Revision 1, dated December 17, 2013; as 

applicable. 

(i) MLG Pin Identification and Replacement 

for Model ATR72 Airplanes 

For Model ATR72 airplanes: At the earlier 

of the times specified in paragraphs (i)(1) and 

(i)(2) of this AD, inspect all LH and RH MLG 

pins for a part number and serial number 

listed in Messier-Bugatti-Dowty Service 

Bulletin 631–32–214, dated January 13, 2014; 

or Messier-Bugatti-Dowty Service Bulletin 

631–32–219, dated March 3, 2014; as 

applicable. A review of airplane maintenance 

records is acceptable in lieu of this 

inspection if the part number and serial 

number of the LH and RH MLG pin can be 

conclusively determined from that review. If 

any affected MLG pin is found: At the earlier 

of the compliance times specified in 

paragraphs (i)(1) and (i)(2) of this AD, replace 


rljohnson on DSK3VPTVN1PROD with PROPOSALS
19248 Federal Register / Vol. 80, No. 69 / Friday, April 10, 2015 / Proposed Rules 

the MLG with a serviceable MLG as 

identified in paragraph (j) of this AD, using 

a method approved by the Manager, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA; or the European 

Aviation Safety Agency (EASA); or ATR–GIE 

Avions de Transport Re ́gional’s EASA Design 

Organization Approval (DOA). 

(1) No later than the next MLG overhaul 

scheduled after the effective date of this AD. 

(2) Within 20,000 flight cycles or 9 years, 

whichever occurs first, accumulated since 

installation of the MLG on an airplane since 

new or since last overhaul, as applicable. 

(j) Definition of Serviceable MLG for Model 

ATR72 Airplanes 

For Model ATR72 airplanes: For purposes 

of paragraph (i) of this AD, a serviceable MLG 

is one that incorporates pins specified in 

paragraph (j)(1) or (j)(2) of this AD. 

(1) Pins that are not identified in MessierBugatti-Dowty Service Bulletin 631–32–214, 

dated January 13, 2014; or Messier-BugattiDowty Service Bulletin 631–32–219, dated 

March 3, 2014; as applicable. 

(2) Pins that have been inspected and 

reconditioned in accordance with the 

Accomplishment Instructions of MessierBugatti-Dowty Service Bulletin 631–32–214, 

dated January 13, 2014; or Messier-BugattiDowty Service Bulletin 631–32–219, dated 

March 3, 2014; as applicable. 

(k) MLG Pin Identification and Replacement 

for Model ATR42 Airplanes 

(1) For Model ATR42 airplanes: Within the 

compliance time identified in paragraph 

(k)(1)(i) or (k)(1)(ii) of this AD, whichever 

occurs first, inspect for any LH and RH MLG 

pins having a part number and serial number 

listed in Messier-Bugatti-Dowty Service 

Bulletin 631–32–215, dated January 13, 2014; 

or Messier-Bugatti-Dowty Service Bulletin 

631–32–220, dated March 3, 2014; as 

applicable. A review of airplane maintenance 

records is acceptable in lieu of this 

identification if the part number and serial 

number of the LH and RH MLG pin can be 

conclusively determined from that review. 

(i) No later than the next MLG overhaul 

scheduled after the effective date of this AD. 

(ii) Within 20,000 flight cycles or 9 years, 

whichever occurs first, accumulated since 

installation of the MLG on an airplane since 

new or since last overhaul, as applicable. 

(2) If the MLG pin having a part number 

and serial number listed in Messier- BugattiDowty Service Bulletin 631–32–215, dated 

January 13, 2014; or Messier-Bugatti-Dowty 

Service Bulletin 631–32–220, dated March 3, 

2014; as applicable; is found to be installed 

during the identification required by 

paragraph (k)(1) of this AD, within the 

compliance time identified in paragraph 

(k)(1) of this AD, replace the MLG with a 

serviceable MLG, using a method approved 

by the Manager, International Branch, ANM– 

116, Transport Airplane Directorate, FAA; or 

the EASA; or ATR–GIE Avions de Transport 

Re ́gional’s EASA DOA. A serviceable MLG is 

a part that has pins as identified in paragraph 

(k)(2)(i) or (k)(2)(ii) of this AD. 

(i) Pins that are not listed in MessierBugatti-Dowty Service Bulletin 631–32–215, 

dated January 13, 2014; or Messier-BugattiDowty Service Bulletin 631–32–220, dated 

March 3, 2014; as applicable. 

(ii) Pins that have been inspected and 

reconditioned, in accordance with the 

Accomplishment Instructions of MessierBugatti-Dowty Service Bulletin 631–32–215, 

dated January 13, 2014; or Messier-BugattiDowty Service Bulletin 631–32–220, dated 

March 3, 2014; as applicable. 

(l) Credit for Previous Actions 

This paragraph provides credit for actions 

required by paragraph (g) of this AD, if those 

actions were performed before the effective 

date of this AD using Messier-Bugatti-Dowty 

Service Bulletin 631–32–216, dated October 

30, 2013, which is not incorporated by 

reference in this AD. 

(m) Other FAA AD Provisions 

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: 

Tom Rodriguez, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue SW., Renton, WA 98057–3356; 

telephone 425–227–1137; 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) Contacting the Manufacturer: For any 

requirement in this AD to obtain corrective 

actions from a manufacturer, the action must 

be accomplished using a method approved 

by the Manager, International Branch, ANM– 

116, Transport Airplane Directorate, FAA; or 

the EASA; or ATR–GIE Avions de Transport 

Re ́gional’s EASA DOA. If approved by the 

DOA, the approval must include the DOAauthorized signature. 

(n) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) EASA 

Airworthiness Directive 2014–0074, dated 

March 21, 2014, for related information. This 

MCAI may be found in the AD docket on the 

Internet at http://www.regulations.gov by 

searching for and locating Docket No. FAA– 

2015–0682. 

(2) For Messier-Bugatti-Dowty service 

information identified in this AD, contact 

ATR–GIE Avions de Transport Re ́gional, 1, 

Alle ́e Pierre Nadot, 31712 Blagnac Cedex, 

France; telephone +33 (0) 5 62 21 62 21; fax 

+33 (0) 5 62 21 67 18; email 

continued.airworthiness@atr.fr; Internet 

http://www.aerochain.com. You may view 

this service information at the FAA, 

Transport Airplane Directorate, 1601 Lind 

Avenue SW., Renton, WA. For information 

on the availability of this material at the 

FAA, call 425–227–1221. 

Issued in Renton, Washington, on March 

25, 2015. 

Michael Kaszycki, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2015–07801 Filed 4–9–15; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2015–0683; Directorate 

Identifier 2014–NM–196–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 all The 

Boeing Company Model 767–200, –300, 

and –300F series airplanes. This 

proposed AD was prompted by a finding 

that certain barrel nuts installed at the 

vertical fin may be subject to stress 

corrosion and cracking. This proposed 

AD would require either repetitive 

inspections of vertical fin barrel nuts for 

corrosion or a magnetic check to 

identify certain barrel nuts, and 

corrective actions if necessary. We are 

proposing this AD to detect and correct 

corroded and loose barrel nuts that 

attach the vertical fin to body section 

48, which could result in reduced 

structural integrity of the vertical fin 

attachment joint, loss of the vertical fin, 

and consequent loss of controllability of 

the airplane. 

DATES: We must receive comments on 

this proposed AD by May 26, 2015. 

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. 


rljohnson on DSK3VPTVN1PROD with PROPOSALS