Federal Register / Vol. 77, No. 16 / Wednesday, January 25, 2012 / Rules and Regulations 3579 

* * * * * 

5. Test Measurements 

* * * * * 

5.2.1.3 Variable Defrost Control. The 

energy consumption in kilowatt-hours per 

day shall be calculated equivalent to: 

ET = (1440 × K × EP1/T1) + (EP2¥(EP1 × T2/ 

T1)) × K × (12/CT), 

Where: 

ET, K, and 1440 are defined in section 

5.2.1.1; 

EP1, EP2, T1, T2, and 12 are defined in 

section 5.2.1.2; 

CT = (CTL × CTM)/(F × (CTM¥CTL) + CTL) 

Where: 

CTL = least or shortest compressor run time 

between defrosts in hours rounded to the 

nearest tenth of an hour (greater than or 

equal to 6 hours but less than or equal 

to 12 hours); 

CTM = maximum compressor run time 

between defrosts in hours rounded to the 

nearest tenth of an hour (greater than 

CTL but not more than 96 hours); 

F = ratio of per day energy consumption in 

excess of the least energy and the 

maximum difference in per-day energy 

consumption and is equal to 0.20. 

For variable defrost models with no values 

for CTL and CTM in the algorithm, the default 

values of 6 and 96 shall be used, respectively. 

* * * * * 

[FR Doc. 2012–1341 Filed 1–24–12; 8:45 am] 

BILLING CODE 6450–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0219; Directorate 

Identifier 2010–NM–228–AD; Amendment 

39–16921; AD 2012–01–09] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

The Boeing Company Model 757–200, 

–200CB, and –300 series airplanes with 

off-wing escape slide systems installed. 

This AD was prompted by reports of inflight loss of the off-wing escape slide. 


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3580 Federal Register / Vol. 77, No. 16 / Wednesday, January 25, 2012 / Rules and Regulations 

This AD requires modifying the door 

latch fittings and witness mark placards 

of the off-wing escape slide systems; 

and for certain airplanes, replacing the 

bearings and lockbase retainer in the 

door latch assembly, relocating and 

adjusting the sensor target and the 

sensor proximity switch, and testing to 

ensure positive door locking and 

corrective action if necessary. For 

certain airplanes, this AD would also 

require installing a bumper assembly 

and placards. We are issuing this AD to 

prevent the in-flight loss of the off-wing 

escape slide, which could result in the 

unavailability of the escape slide during 

an emergency evacuation. Additionally, 

the departed slide could cause damage 

to the fuselage, wing, flaps, or stabilizer, 

which could degrade flight control. 

DATES: This AD is effective February 29, 

2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of February 29, 2012. 

ADDRESSES: For service information 

identified in this AD, Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, Washington 98124– 

2207; phone: (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 AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (phone: (800) 647–5527) 

is Document Management Facility, U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue SE., Washington, 

DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Kimberly DeVoe, Aerospace Engineer, 

Cabin Safety and Environmental 

Systems Branch, ANM–150S, Seattle 

Aircraft Certification Office (ACO), 

FAA, 1601 Lind Avenue SW., Renton, 

Washington 98057–3356; phone: (425) 

917–6495; fax: (425) 917–6590; email: 

Kimberly.Devoe@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM was published in the Federal 

Register on March 14, 2011 (76 FR 

13541). That NPRM proposed to require 

modifying the door latch fittings and 

witness mark placards of the off-wing 

escape slide systems; and for certain 

airplanes, replacing the bearings and 

lockbase retainer in the door latch 

assembly, relocating and adjusting the 

sensor target and the sensor proximity 

switch, and testing to ensure positive 

door locking and corrective action if 

necessary. For certain airplanes, that 

NPRM also proposed to require 

installing a bumper assembly and 

placards. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the proposal and the FAA’s 

response to each comment. 

Agreement With the Intent of the NPRM 

American Airlines (American) stated 

it agrees with the intent of the NPRM 

(76 FR 13541, March 14, 2011). 

Continental Airlines (Continental) 

stated that it has no objection to 

paragraphs (g) and (h) of the NPRM. 

Requests To Update Service 

Information 

American, Boeing, and an anonymous 

commenter requested the NPRM (76 FR 

13541, March 14, 2011) be updated to 

refer to Boeing Special Attention 

Service Bulletin 757–25–0298, Revision 

1, dated April 12, 2011, which was 

released during the NPRM comment 

period. 

We agree. Since the NPRM (76 FR 

13541, March 14, 2011) was issued, 

Boeing has issued Special Attention 

Service Bulletin 757–25–0298, Revision 

1, dated April 12, 2011, which clarifies 

door latch engagement information, 

clarifies kit availability, and adds 

existing part numbers. We have changed 

paragraphs (c) and (g) of the AD to refer 

to Boeing Special Attention Service 

Bulletin 757–25–0298, Revision 1, dated 

April 12, 2011; added paragraph (k) of 

the AD to give credit for actions already 

accomplished in accordance with 

Boeing Special Attention Service 

Bulletin 757–25–0298, dated October 

16, 2008; and revised subsequent 

paragraph lettering. 

Request To Delay Publication of the AD 

Continental requested we delay 

publication of the final rule until 

Revision 3 to Boeing Service Bulletin 

757–25–0182 is published. Continental 

justified its request by stating that it 

noticed some discrepancies in Boeing 

Service Bulletin 757–25–0182, Revision 

2, dated January 11, 2001, and would 

prefer that Revision 3 of this service 

bulletin be issued prior to the issuance 

of the final rule. 

We partially agree. We agree that 

discrepancies exist in Boeing Service 

Bulletin 757–25–0182, Revision 2, dated 

January 11, 2001. We have reviewed 

Continental’s comments with Boeing to 

obtain technical clarification. Boeing 

agrees with some of the discrepancies 

and has noted them for consideration 

for the next scheduled revision of this 

service bulletin. We disagree with 

delaying the issuance of the final rule 

because these minor discrepancies do 

not affect the operators’ ability to 

accomplish the tasks specified in Boeing 

Service Bulletin 757–25–0182, Revision 

2, dated January 11, 2001. We have not 

changed the AD in this regard. 

Request To Identify the Specific Steps 

in the Service Information 

American requested we change the 

NPRM (76 FR 13541, March 14, 2011) to 

identify the steps in Boeing Service 

Bulletin 757–25–0182, Revision 2, dated 

January 11, 2001, that would be 

required to comply with paragraph 

(h)(2) of the NPRM. American justified 

its request by stating that identifying the 

specific steps will eliminate ambiguity 

and provide clear interpretation of the 

proposed AD. 

We agree. Clarifying the required 

steps will assist operators in 

accomplishing the required tests and 

modifications and will not expand the 

scope of the AD. We have added the 

steps to paragraph (h)(2) of the AD. 

Request To Allow an Alternative to the 

Door Open/Door Close Test of the 

Compartment Door 

American requested we change 

paragraph (h)(2) of the NPRM (76 FR 

13541, March 14, 2011) to allow 

replacement of the target and remount 

of the switch on the new bracket in 

accordance with the Accomplishment 

Instructions of Boeing Service Bulletin 

757–25–0182, Revision 2, dated January 

11, 2001, as an alternative to performing 

the door open/door close test of the 

equipment compartment door. 

American justified its request by stating 

it accomplished the door open/door 

closed test of the compartment door as 

described in Boeing Service Bulletin 


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757–25–0182, Revision 2, dated January 

11, 2001, in 2002 and 2003, and later 

experienced multiple off-wing slide 

deployments in 2006 and 2007. 

We agree that replacing the target and 

remounting the switch on the new 

bracket is an alternative to performing 

the door open/door close test of the 

equipment compartment door. We have 

added a statement to paragraph (h)(2) of 

this AD indicating that replacing the 

target and remounting the switch on the 

new bracket terminates the testing 

requirement in that paragraph. 

Request To Allow Certain Alternative 

Methods of Compliance (AMOCs) 

American requested that all AMOCs 

previously approved for AD 99–17–20, 

Amendment 39–11266 (64 FR 45436, 

August 20, 1999), be applicable to the 

pertinent paragraphs of the NPRM (76 

FR 13541, March 14, 2011). American 

justified its request by stating that since 

these AMOCs have previously 

demonstrated they provide the 

necessary equivalent level of safety to 

the original rule, transferring the 

applicability will prevent duplication of 

efforts already undertaken by both 

operators and the FAA. 

We agree. AMOCs previously 

evaluated and approved as providing 

the necessary level of safety for AD 99– 

17–20, Amendment 39–11266 (64 FR 

45436, August 20, 1999), would also 

provide the necessary level of safety for 

the corresponding requirements of this 

AD. We have added paragraph (l)(3) to 

the AD, which specifies that AMOCs 

approved previously in accordance with 

AD 99–17–20, Amendment 39–11266, 

are approved as AMOCs for the 

corresponding provisions of paragraph 

(h) of this AD. 

Request To Allow the Replacement of 

Kept Parts With New Parts of the Same 

Part Number 

American requested we change the 

NPRM (76 FR 13541, March 14, 2011) to 

allow replacement of kept parts with 

new parts of the same part number. 

American justified its request by stating 

that during the course of modification, 

parts may become damaged or lost, 

therefore rendering the kept hardware 

unserviceable or unavailable for 

installation. 

We agree with using new parts where 

the service information calls for 

installation of kept parts because a part 

having the identical part number is 

acceptable for use whether it is kept or 

new. We have added new paragraph 

(h)(5) to this final rule to allow using 

new parts. 

Request To Allow Operator Use of 

Approved Substitutes of Common 

Hardware 

American requested we change the 

NPRM (76 FR 13541, March 14, 2011) to 

allow operators to use substitutes of 

common hardware (e.g., washers, nuts, 

bolts, and adhesives) that have been 

determined to be equivalent in 

accordance with the operator’s parts 

management system to comply with 

hardware specified in Boeing Special 

Attention Service Bulletin 757–25– 

0298, Revision 1, dated April 12, 2011, 

Boeing Service Bulletin 757–25–0182, 

Revision 2, dated January 11, 2001, 

Boeing Service Bulletin 757–25–0200, 

Revision 1, dated August 3, 2000, and 

Boeing Special Attention Service 

Bulletin 757–25–0219, dated August 3, 

2000. 

We disagree. Parts management is an 

operator-specific process and needs to 

be evaluated on an individual basis. We 

will consider requests for approval of an 

AMOC under the provisions of 

paragraph (l) of this AD. Sufficient data 

must be submitted to substantiate that 

the operator’s use of substitutes of 

common hardware would provide an 

acceptable level of safety. We have not 

changed the AD in this regard. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting the AD 

with the changes described previously. 

We also determined that these 

changes will not increase the economic 

burden on any operator or increase the 

scope of the AD. 

Costs of Compliance 

We estimate that this AD will affect 

451 airplanes of U.S. registry. 

We estimate the following costs to 

comply with this AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product Cost on U.S. operators 

Modification of fittings and placards: Boeing Special 

Attention Service Bulletin 757–25–0298, Revision 

1, dated April 12, 2011.

7 work-hours × $85 per 

hour = $595.

$1,365 $1,960 $883,960. 

Modification: Boeing Service Bulletin 757–25–0182, 

Revision 2, dated January 11, 2001.

40 work-hours × $85 per 

hour = $3,400.

2,786 6,186 $1,880,544 (304 airplanes). 

Test: Service Boeing Service Bulletin 757-25-0182, 

Revision 2, dated January 11, 2001.

2 work-hours × $85 per 

hour = $170.

0 170 $76,670. 

Bumper assembly and placards installation: Boeing 

Service Bulletin 757–25–0200, Revision 1, dated 

August 3, 2000.

4 work-hours × $85 per 

hour = $340.

457 797 $272,574 (342 airplanes). 

Bumper assembly and placards installation: Boeing 

Special Attention Service Bulletin 757–25–0219, 

dated August 3, 2000.

4 work-hours × $85 per 

hour = $340.

457 797 $0 (0 airplanes). 

We estimate the following costs to do 

any necessary replacements that would 

be required based on the results of the 

test. We have no way of determining the 

number of aircraft that might need these 

replacements. 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per 

product 

Replacement and remount; Boeing Service Bulletin 757–25–0182, 

Revision 2, dated January 11, 2001.

4 work-hours × $85 per hour = 

$340.

$2,786 $3,126 


sroberts on DSK4TPTVN1PROD with RULES
3582 Federal Register / Vol. 77, No. 16 / Wednesday, January 25, 2012 / Rules and Regulations 

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 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will 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 that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Is not a ‘‘significant rule’’ under 

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. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 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): 

2012–01–09 The Boeing Company: 

Amendment 39–16921; Docket No. 

FAA–2011–0219; Directorate Identifier 

2010–NM–228–AD. 

(a) Effective Date 

This AD is effective February 29, 2012. 

(b) Affected ADs 

Certain requirements of this AD affect 

certain requirements of AD 99–17–20, 

Amendment 39–11266 (64 FR 45436, August 

20, 1999). 

(c) Applicability 

This AD applies to The Boeing Company 

Model 757–200, –200CB, and –300 series 

airplanes; certificated in any category; as 

identified in Boeing Special Attention 

Service Bulletin 757–25–0298, Revision 1, 

dated April 12, 2011; with off-wing escape 

slide systems installed. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 25, Equipment and Furnishings. 

(e) Unsafe Condition 

This AD was prompted by reports of inflight loss of the off-wing escape slide. We 

are issuing this AD to prevent the in-flight 

loss of the off-wing escape slide, which could 

result in the unavailability of the escape slide 

during an emergency evacuation. 

Additionally, the departed slide could cause 

damage to the fuselage, wing, flaps, or 

stabilizer, which could degrade flight control. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Modification 

Within 60 months after the effective date 

of this AD, modify the door latch fittings and 

witness mark placards of the left and right 

off-wing escape slide systems, in accordance 

with the Accomplishment Instructions of 

Boeing Special Attention Service Bulletin 

757–25–0298, Revision 1, dated April 12, 

2011. 

(h) Concurrent Actions 

Concurrently with or before accomplishing 

the actions specified in paragraph (g) of this 

AD, do the applicable actions specified in 

paragraphs (h)(1), (h)(2), (h)(3), and (h)(4) of 

this AD. 

(1) For airplanes that have not been 

modified by Boeing Service Bulletin 757–25– 

0182, dated October 10, 1996; or Revision 1, 

dated June 12, 1997; as of the effective date 

of this AD: Modify the door latch system of 

the left and right off-wing emergency 

evacuation slide systems, in accordance with 

the Accomplishment Instructions of Boeing 

Service Bulletin 757–25–0182, Revision 2, 

dated January 11, 2001. 

(2) For airplanes that have been modified 

by Boeing Service Bulletin 757–25–0182, 

dated October 10, 1996; or Revision 1, dated 

June 12, 1997; as of the effective date of this 

AD: Do a test to verify that the modified 

compartment door sensor provides an 

accurate indication of the door lock 

condition, in accordance with Part II, Steps 

A. through C., of the Accomplishment 

Instructions of Boeing Service Bulletin 757– 

25–0182, Revision 2, dated January 11, 2001. 

If the test indicates that the compartment 

door is not locking positively, concurrently 

with or before accomplishing the actions 

specified in paragraph (g) of this AD, replace 

the target and remount the switch on the new 

bracket, in accordance with Part II, Steps F. 

through V., of the Accomplishment 

Instructions of Boeing Service Bulletin 757– 

25–0182, Revision 2, dated January 11, 2001. 

Replacing the target and remounting the 

switch on the new bracket terminates the 

testing requirement in this paragraph. 

(3) For airplanes identified in Boeing 

Service Bulletin 757–25–0200, Revision 1, 

dated August 3, 2000: Concurrently with or 

before accomplishing the actions required by 

paragraph (g) of this AD, install a bumper 

assembly on the left and right off-wing 

escape slide carriers, and install new 

placards in the area of the maintenance 

access door, in accordance with the 

Accomplishment Instructions of Boeing 

Service Bulletin 757–25–0200, Revision 1, 

dated August 3, 2000. 

(4) For airplanes identified in Boeing 

Special Attention Service Bulletin 757–25– 

0219, dated August 3, 2000: Concurrently 

with or before accomplishing the actions 

required by paragraph (g) of this AD, install 

a bumper assembly on the left and right offwing escape slide carriers, and install new 

placards in the area of the maintenance 

access door, in accordance with the 

Accomplishment Instructions of Boeing 

Special Attention Service Bulletin 757–25– 

0219, dated August 3, 2000. 

(5) Using new parts having the same part 

number where the service information calls 

for installation of kept parts is acceptable for 

compliance with the requirements of this AD. 

(i) Terminating Action for Paragraph (a)(1) 

of AD 99–17–20, Amendment 39–11266 (64 

FR 45436, August 20, 1999) 

Actions done in accordance with 

paragraph (h)(1) of this AD terminate the 

requirements of paragraph (a)(1) of AD 99– 

17–20, Amendment 39–11266 (64 FR 45436, 

August 20, 1999). 

(j) Terminating Action for Paragraph (a)(2) 

of AD 99–17–20, Amendment 39–11266 (64 

FR 45436, August 20, 1999) 

Actions done in accordance with 

paragraph (h)(3) of this AD terminate the 

corresponding requirements of paragraph 

(a)(2) of AD 99–17–20, Amendment 39– 

11266 (64 FR 45436, August 20, 1999). 

(k) Credit for Actions Accomplished in 

Accordance With Previous Service 

Information 

Actions done before the effective date of 

this AD in accordance with Boeing Service 

Bulletin 757–25–0200, dated January 21, 

1999, are acceptable for compliance with the 

corresponding requirements of paragraphs 

(h)(3) and (h)(4) of this AD. Actions done 


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Federal Register / Vol. 77, No. 16 / Wednesday, January 25, 2012 / Rules and Regulations 3583 

before the effective date of this AD in 

accordance with Boeing Special Attention 

Service Bulletin 757–25–0298, dated October 

16, 2008, are acceptable for compliance with 

the corresponding requirements of paragraph 

(g) of this AD. 

(l) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Seattle Aircraft 

Certification Office, 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 emailed 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. 

(3) AMOCs approved in accordance with 

AD 99–17–20, Amendment 39–11266 (64 FR 

45436, August 20, 1999), are approved as 

AMOCs for the corresponding provisions of 

paragraph (h) of this AD. 

(m) Related Information 

For more information about this AD, 

contact Kimberly DeVoe, Aerospace 

Engineer, Cabin Safety and Environmental 

Systems Branch, ANM–150S, Seattle Aircraft 

Certification Office (ACO), FAA, 1601 Lind 

Avenue SW., Renton, Washington 98057– 

3356; phone: (425) 917–6495; fax: (425) 917– 

6590; email: Kimberly.Devoe@faa.gov. 

(n) Material Incorporated by Reference 

(1) You must use the following service 

information to do the actions required by this 

AD, unless the AD specifies otherwise. The 

Director of the Federal Register approved the 

incorporation by reference (IBR) of the 

following service information under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(i) Boeing Special Attention Service 

Bulletin 757–25–0298, Revision 1, dated 

April 12, 2011. 

(ii) Boeing Service Bulletin 757–25–0182, 

Revision 2, dated January 11, 2001. 

(iii) Boeing Service Bulletin 757–25–0200, 

Revision 1, dated August 3, 2000. 

(iv) Boeing Special Attention Service 

Bulletin 757–25–0219, dated August 3, 2000. 

(2) 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; phone: 

(206) 544–5000, extension 1; fax: (206) 766– 

5680; email: me.boecom@boeing.com; 

Internet: https://www.myboeingfleet.com. 

(3) 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. 

(4) You may also review copies of the 

service information that is incorporated by 

reference at the National Archives and 

Records Administration (NARA). For 

information on the availability of this 

material at an NARA facility, call (202) 741– 

6030, or go to http://www.archives.gov/ 

federal_register/code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Renton, Washington, on January 

13, 2012. 

John Piccola, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–1125 Filed 1–24–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0995; Directorate 

Identifier 2010–NM–243–AD; Amendment 

39–16920; AD 2012–01–08] 

RIN 2120–AA64 

Airworthiness Directives; 328 Support 

Services GmbH Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for all 328 

Support Services GmbH (Type 

Certificate previously held by AvCraft 

Aerospace GmbH; Fairchild Dornier 

GmbH; Dornier Luftfahrt GmbH) Model 

328–100 and 328–300 airplanes. This 

AD was prompted by a manufacturer 

safety analyses review on flight control 

which resulted in recommendations for 

reduced repetitive inspection intervals 

for the flight controls certification 

maintenance requirements (CMR) of the 

tab-to-actuator linkage. This AD requires 

revising the airplane maintenance 

program by incorporating certain CMR 

tasks. We are issuing this AD to prevent 

failure of these components or their 

constituent parts which could lead to 

reduced control of the airplane. 

DATES: This AD becomes effective 

February 29, 2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of February 29, 2012. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

www.regulations.gov or in person at the 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue SE., 

Washington, DC. 

FOR FURTHER INFORMATION CONTACT: Tom 

Rodriguez, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA 

1601 Lind Avenue SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1137; fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM was published in the Federal 

Register on October 5, 2011 (76 FR 

61638). That NPRM proposed to correct 

an unsafe condition for the specified 

products. The MCAI states: 

Based on in-service experience, the System 

Safety Analyses for the Flight Controls have 

been reviewed and their conclusions have 

been accepted during the latest Candidate 

Maintenance Coordination Committee 

meeting. 

This review resulted in reduced inspection 

intervals, specifically for the flight controls 

tab-to-actuator linkage CMR repetitive 

inspections, which have been identified as 

mandatory actions for continued 

airworthiness. 

Failure of these components or their 

constituent parts could lead to reduced 

control of the aeroplane. 

Consistent with the [European Aviation 

Safety Agency] EASA policy to require 

compliance with any new and reduced 

airworthiness limitations by taking AD action 

and for the reasons described above, this 

EASA AD requires the accomplishment of 

the reduced-interval repetitive inspections 

and, depending on findings, related 

corrective action(s). In addition, this [EASA] 

AD requires the implementation of the 

affected reduced inspection intervals and 

associated corrective actions into the 

operator’s approved maintenance 

programme. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

received no comments on the NPRM (76 

FR 61638, October 5, 2011) or on the 

determination of the cost to the public. 

Conclusion 

We reviewed the available data and 

determined that air safety and the 

public interest require adopting the AD 

as proposed except for minor editorial 

changes. We have determined that these 

minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM (76 FR 

61638, October 5, 2011) for correcting 

the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM (76 FR 61638, 

October 5, 2011). 


sroberts on DSK4TPTVN1PROD with RULES