36678 Federal Register / Vol. 79, No. 125 / Monday, June 30, 2014 / Proposed Rules 

Issued in Renton, Washington, on June 10, 

2014. 

Jeffrey E. Duven, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2014–15246 Filed 6–27–14; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2014–0426; Directorate 

Identifier 2013–NM–231–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 767 and 

777 airplanes. This proposed AD was 

prompted by reports of uncommanded 

door closure of the large lower lobe 

cargo door. This proposed AD would 

require inspecting for part numbers and 

serial numbers of the rotary actuators of 

the large forward and aft lower lobe 

cargo doors, as applicable, and 

corrective action if necessary. We are 

proposing this AD to detect and correct 

rotary actuators made with a material 

having poor actuator gear wear 

characteristics, which could result in 

failure of the rotary actuators for the 

large forward or aft lower lobe cargo 

door and subsequent uncommanded 

door closure, which could possibly 

result in injury to people on the ground. 

DATES: We must receive comments on 

this proposed AD by August 14, 2014. 

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 Boeing service information 

identified in this proposed AD, contact 

Boeing Commercial Airplanes, 

Attention: Data & Services Management, 

P.O. Box 3707, MC 2H–65, Seattle, WA 

98124–2207; telephone 206–544–5000, 

extension 1; fax 206–766–5680; Internet 

https://www.myboeingfleet.com. For 

Eaton service information identified in 

this proposed AD, contact Eaton 

Corporation, Aerospace Operations, 3 

Park Plaza, Suite 1200, Irvine, CA 

92614; telephone 949–253–2100; fax 

949–253–2111; Internet http://

www.eaton.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–2014– 

0426; 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: 

Susan Monroe, Aerospace Engineer, 

Cabin Safety and Environmental 

Systems Branch, ANM–150S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue SW., Renton, WA 

98057–3356; phone: 425–917–6457; fax: 

425–917–6590; email: susan.l.monroe@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposal. Send your comments to 

an address listed under the ADDRESSES

section. Include ‘‘Docket No. FAA– 

2014–0426; Directorate Identifier 2013– 

NM–231–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 because of 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 

We received reports of uncommanded 

door closure of the large lower lobe 

cargo door. One incident occurred while 

the door was being opened, a second 

one while the door was stationary in the 

open position, and the third incident 

occurred as the door was being closed. 

It was determined that all of the doors’ 

rotary actuators had failed (two 

actuators per door). The three incidents 

occurred on Model 767 airplanes, but 

the same rotary actuator part numbers 

are also used on the large lower lobe 

cargo doors installed on the Model 777 

airplanes. Examination of five of the 

failed rotary actuators found significant 

wear in the gear box and failure of the 

first stage input sun gear set. The sixth 

failed rotary actuator had a failed thirdstage input sun gear from an overload 

condition. All three affected airplanes 

had between 12,500 and 13,500 total 

flight cycles. The failed actuators were 

manufactured with Nitralloy 135M steel 

between August 1994 and December 

2000. Actuators manufactured before or 

after that timeframe were made with 

9310 steel. The rotary actuators made 

from 9310 steel material are considered 

safe. This condition, if not corrected, 

could result in failure of the rotary 

actuators for the large lower lobe cargo 

door, and subsequent uncommanded 

door closures, which could possibly 

result in injury to people on the ground. 

Relevant Service Information 

We reviewed Boeing Service Bulletins 

767–52A0100, Revision 2, dated 

September 26, 2013; and 777–52–0053, 

Revision 1, dated September 26, 2013. 

For information on the procedures and 

compliance times, see this service 

information at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2014– 

0426. 

Boeing Service Bulletins 767– 

52A0100, Revision 2, dated September 

26, 2013; and 777–52–0053, Revision 1, 

dated September 26, 2013; refer to Eaton 

Service Bulletin 692D100–52–4, 

Revision 2, dated August 1, 2013, which 

provides serial number information and 

certain corrective actions (rework of 

certain rotary actuators or 

reidentification of certain other rotary 

actuators). 

FAA’s Determination 

We are proposing this AD because we 

evaluated all the relevant information 

and determined the unsafe condition 

described previously is likely to exist or 


emcdonald on DSK67QTVN1PROD with PROPOSALS
Federal Register / Vol. 79, No. 125 / Monday, June 30, 2014 / Proposed Rules 36679 

develop in other products of these same 

type designs. 

Proposed AD Requirements 

This proposed AD would require 

inspecting for part numbers and serial 

numbers of the rotary actuators of the 

large forward and aft lower lobe cargo 

doors, as applicable, and corrective 

actions if necessary, as specified in the 

service information described 

previously. 

The phrase ‘‘corrective actions’’ is 

used in this proposed AD. ‘‘Corrective 

actions’’ are actions that correct or 

address any condition found. Corrective 

actions in an AD could include, for 

example, repairs. 

Costs of Compliance 

We estimate that this proposed AD 

affects 510 airplanes of U.S. registry. 

We estimate the following costs to 

comply with this proposed AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Inspection for part number and serial number ... 1 work-hour × $85 per hour = $85 ..................... None .......... $85 $43,350. 

We estimate the following costs to do 

any necessary re-identification or 

replacements that would be required 

based on the results of the proposed 

inspection. We have no way of 

determining the number of aircraft that 

might need these re-identifications or 

replacements: 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per product 

Re-identification ......................................... Up to 1 work-hour × $85 per hour = $85 .................................... $1 Up to $86. 

Replacement .............................................. Up to 9 work-hours × $85 per hour = $765 ................................ 19,700 Up to $20,465. 

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 proposed 

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): 

The Boeing Company: Docket No. FAA– 

2014–0426; Directorate Identifier 2013– 

NM–231–AD. 

(a) Comments Due Date 

We must receive comments by August 14, 

2014. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

airplanes identified in paragraphs (c)(1) and 

(c)(2) of this AD, certificated in any category. 

(1) Model 767–200, –300, –300F, and 

–400ER series airplanes, as identified in 

Boeing Service Bulletin 767–52A0100, 

Revision 2, dated September 26, 2013. 

(2) Model 777–200, –200LR, –300, –300ER, 

and 777F series airplanes, as identified in 

Boeing Service Bulletin 777–52–0053, 

Revision 1, dated September 26, 2013. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 52, Doors. 

(e) Unsafe Condition 

This AD was prompted by reports of 

uncommanded door closure of the large 

lower lobe cargo door. We are issuing this AD 

to detect and correct rotary actuators made 

with a material having poor wear 

characteristics, which could result in failure 

of the rotary actuators for the large forward 

or aft lower lobe cargo door and subsequent 

uncommanded door closure, which could 

possibly result in injury to people on the 

ground. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspection for Part Numbers, and ReIdentification or Replacement, for Model 767 

Airplanes 

For Model 767–200, –300, –300F, and 

–400ER series airplanes: Within 30 months 

after the effective date of this AD, inspect 

each rotary actuator installed in the forward 


emcdonald on DSK67QTVN1PROD with PROPOSALS
36680 Federal Register / Vol. 79, No. 125 / Monday, June 30, 2014 / Proposed Rules 

and aft large lower lobe cargo doors, as 

applicable, to determine the part number and 

serial number, and do all applicable 

corrective actions, in accordance with the 

Accomplishment Instructions of Boeing 

Service Bulletin 767–52A0100, Revision 2, 

dated September 26, 2013; and Eaton Service 

Bulletin 692D100–52–4, Revision 2, dated 

August 1, 2013. Do the applicable corrective 

actions at the applicable time specified in 

paragraph 1.E., ‘‘Compliance,’’ of Boeing 

Service Bulletin 767–52A0100, Revision 2, 

dated September 26, 2013, except as required 

by paragraph (i) of this AD. A review of 

maintenance records for the part number and 

serial number is acceptable in lieu of the 

inspection if the part and serial numbers of 

the rotary actuator can be conclusively 

determined from that review. 

(h) Inspection for Part Numbers, and ReIdentification or Replacement, for Model 777 

Airplanes 

For Model 777–200, –200LR, –300, 

–300ER, and 777F series airplanes: Within 72 

months after the effective date of this AD, 

inspect each rotary actuator installed in the 

forward and aft large lower lobe cargo doors, 

as applicable, to determine the part number 

and serial number, and do all applicable 

corrective actions, in accordance with the 

Accomplishment Instructions of Boeing 

Service Bulletin 777–52–0053, Revision 1, 

dated September 26, 2013; and Eaton Service 

Bulletin 692D100–52–4, Revision 2, dated 

August 1, 2013. Do the applicable corrective 

actions at the applicable time specified in 

paragraph 1.E., ‘‘Compliance,’’ of Boeing 

Service Bulletin 777–52–0053, Revision 1, 

dated September 26, 2013, except as required 

by paragraph (i) of this AD. A review of 

maintenance records for the part number and 

serial number is acceptable in lieu of the 

inspection if the part and serial numbers of 

the rotary actuator can be conclusively 

determined from that review. 

(i) Exception to the Service Information 

Where Boeing Service Bulletin 767– 

52A0100, Revision 2, dated September 26, 

2013; and Boeing Service Bulletin 777–52– 

0053, Revision 1, dated September 26, 2013, 

specify a compliance time after the issue date 

‘‘of this service bulletin,’’ this AD requires 

compliance within the specified compliance 

time after the effective date of this AD. 

(j) Parts Installation Prohibition 

As of the effective date of this AD, no 

rotary actuator having Boeing part number 

S135W132–3 (supplier part number 

692D100–13) may be installed on any 

airplane. 

(k) Alternative Methods of Compliance 

(AMOCs) 

(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 

paragraph (l)(1) of this AD. Information may 

be emailed to: 9-ANM-Seattle-ACO-AMOCRequests@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. 

(3) An AMOC that provides an acceptable 

level of safety may be used for any repair 

required by this AD if it is approved by the 

Boeing Commercial Airplanes Organization 

Designation Authorization (ODA) that has 

been authorized by the Manager, Seattle 

ACO, to make those findings. For a repair 

method to be approved, the repair must meet 

the certification basis of the airplane, and the 

approval must specifically refer to this AD. 

(l) Related Information 

(1) For more information about this AD, 

contact Susan Monroe, 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– 

6457; fax: 425–917–6590; email: 

susan.l.monroe@faa.gov. 

(2) For Boeing service information 

identified in this AD, contact Boeing 

Commercial Airplanes, Attention: Data & 

Services Management, P.O. Box 3707, MC 

2H–65, Seattle, WA 98124–2207; telephone 

206–544–5000, extension 1; fax 206–766– 

5680; Internet https://

www.myboeingfleet.com. For Eaton service 

information identified in this AD, contact 

Eaton Corporation, Aerospace Operations, 3 

Park Plaza, Suite 1200, Irvine, CA 92614; 

telephone 949–253–2100; fax 949–253–2111; 

Internet http://www.eaton.com. You may 

view this 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 June 19, 

2014. 

Michael Kaszycki, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2014–15250 Filed 6–27–14; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2014–0347; Directorate 

Identifier 2013–NM–173–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 767–200 

and –300 series airplane equipped with 

Pratt & Whitney Model JT9D or PW4000 

engines. This proposed AD was 

prompted by a report of several cases of 

low hydraulic pressure or loss of 

electrical power to the alternating 

current motor pump (ACMP) on the left 

engine. This proposed AD would 

require inspecting for damage of the 

wiring bundles in the left engine’s strut 

and corrective actions if necessary, and 

installing new wire support brackets 

and bundle clamp. We are proposing 

this AD to detect and correct chafed 

wire bundles due to rubbing against 

structure or a hydraulic piping elbow, 

which could result in electrical arcing 

in a flammable fluid leakage zone, and 

would provide a possible ignition 

source for fuel vapors and hydraulic 

fluids. Ignited fuel vapors or hydraulic 

fluid in an area without a fire detection 

or suppression system could result in an 

uncontained engine strut fire and 

structural damage to the engine strut. 

DATES: We must receive comments on 

this proposed AD by August 14, 2014. 

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, WA 98124–2207; 

telephone 206–544–5000, extension 1; 

fax 206–766–5680; Internet https://

www.myboeingfleet.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–2014– 

0347; or in person at the Docket 

Management Facility between 9 a.m. 

and 5 p.m., Monday through Friday, 


emcdonald on DSK67QTVN1PROD with PROPOSALS