6000 Federal Register / Vol. 77, No. 25 / Tuesday, February 7, 2012 / Rules and Regulations 

Technical Services, Avenida de Arago ́n 404, 

28022 Madrid, Spain; telephone +34 91 585 

55 84; fax +34 91 585 55 05; email 

MTA.TechnicalService@casa.eads.net; 

Internet http://www.eads.net. 

(3) You may review copies of the 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 

6, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–2291 Filed 2–6–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–1204; Directorate 

Identifier 2010–NM–147–AD; Amendment 

39–16931; AD 2012–02–08] 

RIN 2120–AA64 

Airworthiness Directives; Aviation 

Communication & Surveillance 

Systems (ACSS) Traffic Alert and 

Collision Avoidance System (TCAS) 

Units 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

ACSS TCAS units installed on but not 

limited to various transport and small 

airplanes. This AD was prompted by 

reports of anomalies with TCAS units 

during a flight test over a high density 

airport. The TCAS units dropped 

several reduced surveillance aircraft 

tracks because of interference limiting. 

This AD requires upgrading software. 

We are issuing this AD to prevent TCAS 

units from dropping tracks, which could 

compromise separation of air traffic and 

lead to subsequent mid-air collisions. 

DATES: This AD is effective March 13, 

2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of March 13, 2012. 

ADDRESSES: For service information 

identified in this AD, contact Aviation 

Communication & Surveillance 

Systems, LLC, 19810 North 7th Avenue, 

Phoenix, Arizona 85027–4741; phone: 

623–445–7040; fax: 623–445–7004; 

email: acss.orderadmin@L-3com.com; 

Internet: http://www.acss.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: 

Abby Malmir, Aerospace Engineer, 

Systems and Equipment Branch, ANM– 

130L, FAA, Los Angeles Aircraft 

Certification Office (ACO), 3960 

Paramount Boulevard, Lakewood, 

California 90712–4137; phone: 562– 

627–5351; fax: 562–627–5210; email: 

abby.malmir@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a supplemental notice of 

proposed rulemaking (SNPRM) to 

amend 14 CFR part 39 to include an 

airworthiness directive (AD) that would 

apply to the specified products. That 

SNPRM was published in the Federal 

Register on October 7, 2011 (76 FR 

62321). The original NPRM (75 FR 

81512, December 28, 2010) proposed to 

require upgrading software. The SNPRM 

proposed to require new updated 

software for certain TCAS units. 

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. 

Request To Allow TCAS 7.1 

Modification 

UPS, Qantas, and Dassault requested 

that we allow the TCAS 7.1 

modification (as an alternative to the 

modification specified in the proposed 

AD) as an acceptable method of 

compliance with the proposed AD, 

since the 7.1 modification incorporates 

the intent of the proposed AD. The 

commenters reported that the European 

Aviation Safety Agency (EASA) has 

proposed rulemaking to mandate the 7.1 

modification for airplanes operating in 

European airspace (EASA Notice of 

Proposed Amendment 2010–03, dated 

March 25, 2010). The requirements of 

the FAA and EASA rules therefore 

could overlap: an airplane equipped 

with the 7.1 modification in compliance 

with the EASA rule would require an 

alternative method of compliance 

(AMOC) to be in compliance with the 

FAA AD. The commenters concluded 

that, if the 7.1 modification were 

allowed in the FAA AD, these affected 

ACSS TCAS computers would need to 

be modified only once and would still 

be in compliance with both FAA and 

EASA rules. Dassault noted that ACSS 

is developing service bulletins to 

provide procedures for upgrading to the 

7.1 standard. 

We disagree to change this final rule 

to also allow the version 7.1 

modification for all TCAS products. 

ACSS has not developed all software 

versions that implement the 7.1 

standard for all affected TCAS units and 

airplane models covered by this AD, so 

there is no complete list of service 

information available that includes the 

procedures and information for 

incorporating the 7.1 modification. 

Because additional changes will likely 

be added in the future, additional 

software versions with different part 

numbers will be produced, and it will 

be necessary to issue AMOCs to 

accommodate requests to install such 

future software versions. Under the 

provisions of paragraph (i) of this final 

rule, we will consider requests for an 

alternative method of compliance with 

the AD requirements to allow different 

software versions. 

Request To Extend Compliance Time 

UPS requested that we reinstate the 

48-month compliance time, as originally 

proposed, to accommodate the extent of 

the work necessary to comply with the 

proposed AD—including updating the 

fleet supplemental type certificates 

(STCs), and changing affected 

maintenance programs. Qantas noted 

that reducing the compliance time from 

48 to 36 months will affect U.S. 

operators and also affect airplanes 

operating outside the U.S. Quantas 

stated many operators will choose the 

option to do the modification off-wing 

(a burden on authorized workshops due 


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Federal Register / Vol. 77, No. 25 / Tuesday, February 7, 2012 / Rules and Regulations 6001 

to the number of affected airplanes), and 

this will affect U.S. operators’ ability to 

comply with the reduced compliance 

time. 

We disagree to change the compliance 

time for several reasons. Since the 

original NPRM was issued, we have 

received a report that another ‘‘Altitude 

Failure Annunciation’’ occurred. We 

had based the proposed 36-month 

compliance time on the anticipated 

availability of the corrective action by 

December 2011, and determined that the 

compliance time change was necessary 

to address the identified unsafe 

condition. ACSS has completed the 

development of the software 

modification for fixing this anomaly for 

all the TCAS models and has received 

FAA approval. Therefore, since the 

modification involves only a software 

change, we have determined that 36 

months is sufficient to complete the 

requirements of the AD. We have not 

changed the final rule regarding this 

issue. Under the provisions of paragraph 

(i) of the final rule, however, we may 

consider requests to adjust the 

compliance time if data are submitted to 

substantiate that such an adjustment 

would provide an acceptable level of 

safety. 

Request To Revise Cost Estimate 

Qantas suggested that we consider 

additional factors that could increase 

the cost estimate for operators that 

choose to do the modification off-wing 

in a workshop. 

We infer that Quantas is requesting 

that we revise the cost estimate 

provided in the proposed AD. We 

disagree. Based on available data, the 

manufacturer provided the number of 

work-hours necessary to do the required 

actions. This number represents the 

time necessary to perform only the 

actions actually required by this AD. We 

recognize that, in doing the actions 

required by an AD, operators might 

incur incidental costs in addition to the 

direct costs. The cost analysis in AD 

rulemaking actions, however, typically 

does not include the additional costs, 

which might vary significantly among 

operators and are almost impossible to 

calculate. We have not changed the final 

rule regarding this issue. 

Explanation of Change to This AD 

We have revised paragraph (c) of this 

AD to clarify the document reference 

specified in that paragraph. 

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 change described previously. 

Costs of Compliance 

We estimate that this AD affects 9,000 

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 

Software upgrade ................... 2 work-hours × $85 per hour = $170 ..................................... $2,870 $3,040 $27,360,000 

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): 

2012–02–08 Aviation Communication & 

Surveillance Systems, LLC: Amendment 

39–16931; Docket No. FAA–2010–1204; 

Directorate Identifier 2010–NM–147–AD. 

(a) Effective Date 

This AD is effective March 13, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Aviation 

Communication & Surveillance Systems 

(ACSS) traffic alert and collision avoidance 

system (TCAS) units with part numbers 

identified in ACSS Technical Newsletter 

8008359, Revision B, dated August 3, 2011, 

as installed on but not limited to various 

transport and small airplanes, certificated in 

any category. 

Note 1 to paragraph (c) of this AD: Table 

1 of this AD also provides a cross-referenced 

list of part numbers with associated service 

bulletins to help operators identify affected 

parts. 


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6002 Federal Register / Vol. 77, No. 25 / Tuesday, February 7, 2012 / Rules and Regulations 

TABLE 1—SERVICE BULLETIN AND LRU CROSS-REFERENCE

ACCS Product— Affected LRU Part Numbers (P/Ns)— ACSS Service Bulletin— 

TCAS 3000SP ...................... 9003500–10900, –10901, –10902, –55900, –55901, 

–55902, –57901, –65900, –65901, –65902.

8008221–001, Revision 01, dated February 4, 2011 

(ATA Service Bulletin 9003500–34–6014). 

TCAS 3000SP ...................... 9003500–10001, –10002, –10003, –10004, –55001, 

–55002, –55003, –55004, –65001, –65002, –65003, 

–65004.

8008222–001, Revision 01, dated February 4, 2011 

(ATA Service Bulletin 9003500–34–6015). 

TCAS 3000SP ...................... 9003500–10802 .............................................................. 8008223–001, Revision 01, dated February 4, 2011 

(ATA Service Bulletin 9003500–34–6016). 

TCAS 2000 .......................... 7517900–10003, –10004, –10006, –10007, –10011, 

–55003, –55004, –55006, –55007, –55009, –55011, 

–71003, –71004, –71006, –71007, –71011.

8008229–001, Revision 02, dated June 28, 2011 (ATA 

Service Bulletin 7517900–34–6040). 

TCAS II ................................ 4066010–910, –912 ........................................................ 8008230–001, Revision 02, dated June 28, 2011 (ATA 

Service Bulletin 4066010–34–6036). 

Military TCAS 2000 .............. 7517900–56101, –56102, –56104, –56105, 56107 ........ 8008231–001, Revision 02, dated June 28, 2011 (ATA 

Service Bulletin 7517900–34–6041). 

T2CAS .................................. 9000000–10002, –10003, –10004, –10005, –10006, 

–10008, –10204, –10205, –10206, –10208, –20002, 

–20003, –20004, –20005, –20006, –20008, –20204, 

–20205, –20206, –20208, –55002, –55003, –55004, 

–55005, –55006, –55008, –55204, –55205, –55206, 

–55208.

8008233–001, Revision 03, dated June 30, 2011 (ATA 

Service Bulletin 9000000–34–6016). 

T2CAS .................................. 9000000–10110, –11111 ................................................ 8008234–001, Revision 02, dated June 30, 2011 (ATA 

Service Bulletin 9000000–34–6017). 

TCAS 3000 .......................... 9003000–10001, –10002, –10003, –55001, –55002, 

–55003, –65001, –65002, –65003.

8008235–001, Revision 02, dated February 3, 2011 

(ATA Service Bulletin 9003000–34–6006). 

Military TCAS 2000 MASS .. 7517900–20001, –20002, –65001, –65002 .................... 8008236–001, Revision 03, dated June 30, 2011 (ATA 

Service Bulletin 7517900–34–6042). 

Military T2CAS MASS .......... 9000000–30006, –40006, –60006 .................................. 8008238–001, Revision 02, dated June 30, 2011 (ATA 

Service Bulletin 9000000–34–6018). 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 34, Navigation. 

(e) Unsafe Condition 

This AD was prompted by reports of 

anomalies with TCAS units during a flight 

test over a high density airport. The TCAS 

units dropped several reduced surveillance 

aircraft tracks because of interference 

limiting. We are issuing this AD to prevent 

TCAS units from dropping tracks, which 

could compromise separation of air traffic 

and lead to subsequent mid-air collisions. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Upgrade Software 

Within 36 months after the effective date 

of this AD, upgrade software for the ACSS 

TCAS, in accordance with the 

Accomplishment Instructions of the 

applicable ACSS publication identified in 

table 1 of this AD. 

Note 2 to paragraph (g) of this AD: ACSS 

Service Bulletin 8008233–001 (ATA Service 

Bulletin 9000000–34–6016), Revision 03, 

dated June 30, 2011, contains three part 

numbers (P/Ns 9000000–10007, –20007, and 

–55007) that were never produced. 

(h) Credit for Actions Done in Accordance 

With Previous Service Information 

A software upgrade done before the 

effective date of this AD in accordance with 

the applicable service bulletin identified in 

paragraphs (h)(1) through (h)(13) of this AD 

is acceptable for compliance with the 

requirements of paragraph (g) of this AD. 

(1) ACSS Service Bulletin 8008221–001 

(ATA Service Bulletin 9003500–34–6014), 

dated May 27, 2010. 

(2) ACSS Service Bulletin 8008222–001 

(ATA Service Bulletin 9003500–34–6015), 

dated May 27, 2010. 

(3) ACSS Service Bulletin 8008223–001 

(ATA Service Bulletin 9003500–34–6016), 

dated May 27, 2010. 

(4) ACSS Service Bulletin 8008229–001 

(ATA Service Bulletin 7517900–34–6040), 

Revision 01, dated September 30, 2010. 

(5) ACSS Service Bulletin 8008230–001 

(ATA Service Bulletin 4066010–34–6036), 

Revision 01, dated February 1, 2011. 

(6) ACSS Service Bulletin 8008231–001 

(ATA Service Bulletin 7517900–34–6041), 

Revision 01, dated October 15, 2010. 

(7) ACSS Service Bulletin 8008233–001 

(ATA Service Bulletin 9000000–34–6016), 

Revision 02, dated February 1, 2011. 

(8) ACSS Service Bulletin 8008234–001 

(ATA Service Bulletin 9000000–34–6017), 

Revision 01, dated February 1, 2011. 

(9) ACSS Service Bulletin 8008235–001 

(ATA Service Bulletin 9003000–34–6006), 

dated June 4, 2010. 

(10) ACSS Service Bulletin 8008236–001 

(ATA Service Bulletin 7517900–34–6042), 

dated May 27, 2010. 

(11) ACSS Service Bulletin 8008236–001 

(ATA Service Bulletin 7517900–34–6042), 

Revision 02, dated February 1, 2011. 

(12) ACSS Service Bulletin 8008238–001 

(ATA Service Bulletin 9000000–34–6018), 

dated June 4, 2010. 

(13) ACSS Service Bulletin 8008238–001 

(ATA Service Bulletin 9000000–34–6018), 

Revision 01, dated February 1, 2011. 

(i) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Los Angeles 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. 

(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. 

(j) Related Information 

For more information about this AD, 

contact Abby Malmir, Aerospace Engineer, 

Systems and Equipment Branch, ANM–130L, 

FAA, Los Angeles Aircraft Certification 

Office (ACO), 3960 Paramount Boulevard, 

Lakewood, California 90712–4137; phone: 

(562) 627–5351; fax: (562) 627–5210; email: 

abby.malmir@faa.gov. 

(k) 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) ACSS Service Bulletin 8008221–001, 

Revision 01, dated February 4, 2011 (ATA 

Service Bulletin 9003500–34–6014). 


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Federal Register / Vol. 77, No. 25 / Tuesday, February 7, 2012 / Rules and Regulations 6003 

(ii) ACSS Service Bulletin 8008222–001, 

Revision 01, dated February 4, 2011 (ATA 

Service Bulletin 9003500–34–6015). 

(iii) ACSS Service Bulletin 8008223–001, 

Revision 01, dated February 4, 2011 (ATA 

Service Bulletin 9003500–34–6016). 

(iv) ACSS Service Bulletin 8008229–001, 

Revision 02, dated June 28, 2011 (ATA 

Service Bulletin 7517900–34–6040). 

(v) ACSS Service Bulletin 8008230–001, 

Revision 02, dated June 28, 2011 (ATA 

Service Bulletin 4066010–34–6036). 

(vi) ACSS Service Bulletin 8008231–001, 

Revision 02, dated June 28, 2011 (ATA 

Service Bulletin 7517900–34–6041). 

(vii) ACSS Service Bulletin 8008233–001, 

Revision 03, dated June 30, 2011 (ATA 

Service Bulletin 9000000–34–6016). 

(viii) ACSS Service Bulletin 8008234–001, 

Revision 02, dated June 30, 2011 (ATA 

Service Bulletin 9000000–34–6017). 

(ix) ACSS Service Bulletin 8008235–001, 

Revision 02, dated February 3, 2011 (ATA 

Service Bulletin 9003000–34–6006). 

(x) ACSS Service Bulletin 8008236–001, 

Revision 03, dated June 30, 2011 (ATA 

Service Bulletin 7517900–34–6042). 

(xi) ACSS Service Bulletin 8008238–001, 

Revision 02, dated June 30, 2011 (ATA 

Service Bulletin 9000000–34–6018). 

(xii) ACSS Technical Newsletter 8008359, 

Revision B, dated August 3, 2011. 

(2) For service information identified in 

this AD, contact Aviation Communication & 

Surveillance Systems, LLC, 19810 North 7th 

Avenue, Phoenix, Arizona 85027–4741; 

phone: (623) 445–7040; fax: (623) 445–7004; 

email: acss.orderadmin@L-3com.com; 

Internet: http://www.acss.com. 

(3) You may review copies of the 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 

17, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–2560 Filed 2–6–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–1245; Directorate 

Identifier 2011–CE–033–AD; Amendment 

39–16925; AD 2012–02–02] 

RIN 2120–AA64 

Airworthiness Directives; Cessna 

Aircraft Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are superseding an 

existing airworthiness directive (AD) for 

certain Cessna Aircraft Company 

(Cessna) Models 172R and 172S 

airplanes. That AD currently requires 

you to inspect the fuel return line 

assembly for chafing; replace the fuel 

return line assembly if chafing is found; 

and inspect the clearance between the 

fuel return line assembly and both the 

right steering tube assembly and the 

airplane structure, adjusting as 

necessary. Since we issued that AD, we 

have received a field report of a fuel 

return line chafing incident on a Cessna 

Model 172 airplane with a serial 

number (S/N) that was not included in 

the AD. This AD retains the actions of 

the current AD and adds S/Ns to the 

Applicability section of the AD. Chafing 

of the fuel return line assembly could 

lead to fire. This new AD requires the 

actions of the current AD and adds S/ 

Ns to the Applicability section of the 

AD. We are issuing this AD to correct 

the unsafe condition on these products. 

DATES: This AD is effective March 13, 

2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of March 13, 2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of March 6, 2008 (73 FR 

5737, January 31, 2008). 

ADDRESSES: For service information 

identified in this AD, contact Cessna 

Aircraft Company, Product Support, 

P.O. Box 7706, Wichita, KS 67277; 

telephone: (316) 517–6000; fax: (316) 

517–8500; email: 

Customercare@cessna.textron.com; 

Internet: http://www.cessna.com. You 

may review copies of the referenced 

service information at the FAA, Small 

Airplane Directorate, 901 Locust, 

Kansas City, Missouri 64106. For 

information on the availability of this 

material at the FAA, call (816) 329– 

4148. 

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: 

Trenton Shepherd, Aerospace Engineer, 

Wichita Aircraft Certification Office, 

FAA, 1801 Airport Road Room 100, 

Wichita, Kansas 67209; phone: (316) 

946–4143; fax: (316) 946–4107; email: 

trent.shepherd@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2008–03–02, 

Amendment 39–15351 (73 FR 5737, 

January 31, 2008). That AD applies to 

the specified products. The NPRM 

published in the Federal Register on 

November 14, 2011 (76 FR 70379). That 

NPRM proposed to continue to require 

actions of the current AD and add S/Ns 

to the Applicability section of the AD. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

received no comments on the NPRM (76 

FR 70379, November 14, 2011) or on the 

determination of the cost to the public. 

Conclusion 

We reviewed the relevant 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 

70379, November 14, 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 70379, 

November 14, 2011). 

Costs of Compliance 

We estimate that this AD affects 768 

airplanes of U.S. registry. 

We estimate the following costs to 

comply with this AD: 


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