Document ID: FAA-2012-1001-0007
Agency: faa
Document Type: Proposed Rule
Title: Airworthiness Directives: Cessna Aircraft Company Airplanes
Posted Date: 2013-02-11T05:00Z

[Federal Register Volume 78, Number 28 (Monday, February 11, 2013)]
[Proposed Rules]
[Pages 9636-9640]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-02992]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2012-1001; Directorate Identifier 2012-NM-020-AD]
RIN 2120-AA64

Airworthiness Directives; Cessna Aircraft Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Supplemental notice of proposed rulemaking (NPRM); reopening of 
comment period.

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SUMMARY: We are revising an earlier proposed airworthiness directive 
(AD) for certain Cessna Aircraft Company Model 500, 501, 550, 551, 
S550, 560, 560XL, and 650 airplanes. That NPRM proposed to require an 
inspection to determine if certain air conditioning (A/C) compressor 
motors are installed and to determine the accumulated hours on certain 
A/C drive motor assemblies; repetitive replacement of the brushes in 
the drive motor assembly, or as an option to the brush replacement, 
deactivation of the A/C system and placard installation; and return of 
replaced brushes to Cessna. That NPRM was prompted by multiple reports 
of smoke and/or fire in the tailcone caused by sparking due to 
excessive wear of the brushes in the A/C motor. This action revises 
that NPRM by revising the optional A/C system deactivation procedure. 
We are proposing this supplemental NPRM to prevent the brushes in the 
A/C motor from wearing down beyond their limits, which could result in 
the rivet in the brush contacting the commutator causing sparks and 
consequent fire and/or smoke in the tailcone with no means to detect or 
extinguish the fire and/or smoke. Since these actions impose an 
additional burden over that proposed in the NPRM, we are reopening the 
comment period to allow the public the chance to comment on these 
proposed changes.

DATES: We must receive comments on this supplemental NPRM by March 28, 
2013.

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 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays.
    For service information identified in this proposed AD, contact 
Cessna Aircraft Co., P.O. Box 7706, Wichita, KS 67277; telephone 316-
517-6215; fax 316-517-5802; email citationpubs@cessna.textron.com; 
Internet https://www.cessnasupport.com/newlogin.html. You may review 
copies of the 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; 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: Christine Abraham, Aerospace Engineer, 
Electrical Systems and Avionics Branch, ACE-119W, FAA, Wichita Aircraft 
Certification Office (ACO), 1801 Airport Road, Room 100, Mid-Continent 
Airport, Wichita, Kansas 67209; phone: 316-946-4165; fax: 316-946-4107; 
email: wichita-cos@faa.gov.

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-2012-1001; 
Directorate Identifier 2012-NM-020-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 issued an NPRM to amend 14 CFR part 39 to include an AD that 
would apply to the products listed above. That NPRM published in the 
Federal Register on September 26, 2012 (77 FR 59146). That NPRM 
proposed to require an inspection to determine the accumulated hours on 
certain A/C drive motor assemblies; repetitive replacement of the 
brushes in the drive motor assembly, or as an option to the brush 
replacement, deactivation of the air conditioner; and return of 
replaced brushes to Cessna.

Actions Since Previous NPRM (77 FR 59146, September 26, 2012) Was 
Issued

    Since we issued the previous NPRM (77 FR 59146, September 26, 
2012), Cessna has revised the A/C system deactivation procedure.

Comments

    We gave the public the opportunity to comment on the previous NPRM 
(77 FR 59146, September 26, 2012). The following presents the comments 
received on the NPRM and the FAA's response to each comment.

Request To Change A/C System Deactivation Procedure

    Cessna requested that we change the A/C system deactivation 
procedure specified in paragraph (j)(1) of the previous NPRM (77 FR 
59146, September 26, 2012), because simply pulling the circuit breaker 
does not disable the A/C compressor motor for Model 560XL airplanes, 
and the circuit breaker labeling differs depending on the airplane 
model. Cessna stated that the vapor cycle A/C circuit breaker labeled 
``AIR COND'' for Model 500, 501, 550, 551, S550, and 560 airplanes 
should be pulled, and the vapor cycle A/C circuit breaker labeled ``FWD 
EVAP FAN'' for Model 650 airplanes should be pulled. Cessna also stated 
that, for Model 560XL airplanes, deactivation of the A/C system 
requires removing a

[[Page 9637]]

certain fuse limiter. Cessna suggested a procedure to remove that fuse 
limiter.
    We agree with the commenter's request because the new procedure is 
more appropriate to address the identified unsafe condition. We have 
changed paragraph (k) of the supplemental NPRM (i.e., paragraph (j) of 
the previous NPRM) to specify the correct A/C system deactivation 
procedure. We have also added new paragraph (l) to this supplemental 
NPRM, which specifies the optional reactivation procedure for the A/C 
system, and re-identified subsequent paragraphs accordingly.

Request To Extend Compliance Time

    Netjets Aviation Inc. (Netjets) requested that we extend the 
inspection compliance time in paragraph (h) of the NPRM (77 FR 59146, 
September 26, 2012) from within 30 days or 10 flight hours, whichever 
occurs first, to within 90 days or 60 flight hours, whichever occurs 
first. Netjets stated that it operates 29 airplanes affected by the 
NPRM, which average 62 flight hours per month per airplane, and the 
compliance time in the NPRM poses an undue burden. Netjets also stated 
that extending the proposed compliance time would allow time to 
schedule maintenance personnel and material to support each airplane 
without compromising safety.
    We do not agree with the commenter's request to extend the 
compliance time. In developing an appropriate compliance time for this 
action, we considered the urgency and severity associated with the 
identified unsafe condition. In light of these considerations, we find 
the proposed compliance time to be appropriate to address the 
identified unsafe condition and provide an adequate level of safety. 
However, under the provisions of paragraph (q) of this supplemental 
NPRM, we might consider requests for approval of an extension of the 
compliance time if sufficient data are submitted to substantiate that 
the new compliance time would provide an acceptable level of safety. We 
have not changed this supplemental NPRM in this regard.

Request To Change A/C Compressor Motor Brush Replacement Time

    Netjets requested we specify that the repetitive 500 hours time-in-
service A/C compressor motor brush replacement may be done ``in a 
scheduled inspection based on the Cessna 560 chapter 5 inspection 
programs.'' Netjets stated that this change would allow a more robust 
and systematic approach to scheduling brush replacement.
    We disagree with the commenter's request to change the repetitive 
500 hours time-in-service A/C compressor motor brush replacement time. 
The 500 hours time-in-service replacement period is based on data 
collected from the field. This supplemental NPRM would require 
reporting for the first two replacement cycles. The intent of this 
proposed requirement is to obtain further field data to determine if 
the replacement period might be extended through future rulemaking. 
However, under the provisions of paragraph (q) of the supplemental 
NPRM, we might consider requests for changing the repetitive 500 hours 
time-in-service A/C compressor motor brush replacement period if 
sufficient data are submitted to substantiate that the change would 
provide an acceptable level of safety. We have not changed the 
supplemental NPRM in this regard.

Request To Use Later Revisions of Service Documents

    Cessna requested that we change the document revision references in 
paragraph (i)(3) of the previous NPRM (77 FR 59146, September 26, 2012) 
to refer to the specified revision level ``or later revisions.'' Cessna 
stated that referencing only a specific revision level will cause 
confusion for maintenance personnel when the manuals are updated with a 
newer revision and date. Cessna also stated that its customer support 
receives calls from maintenance personnel requesting old revisions of a 
manual due to ADs requiring an exact revision and that old revisions 
are not available.
    We acknowledge this concern, but cannot agree with the commenter's 
request to include unspecified later document revisions. When referring 
to a specific document in an AD, using the phrase, ``or later FAA-
approved revisions,'' violates Office of the Federal Register 
regulations for approving materials that are incorporated by reference. 
However, affected operators may request approval to use a later 
revision of the referenced service document as an alternative method of 
compliance under the provisions of paragraph (q) of the supplemental 
NPRM. We have not changed the supplemental NPRM in this regard.

Request To Investigate Other A/C Motor Assemblies

    An anonymous commenter requested that we investigate other A/C 
drive motor assemblies, because these motors are quite difficult to get 
to and are often overlooked. The commenter also stated that there are 
other supplemental type certificates (STCs) for the Cessna Citation 
that use a similar motor to the motor identified in the previous NPRM 
(77 FR 59146, September 26, 2012).
    We infer that the commenter wants us to investigate if there are 
other unsafe conditions occurring in other A/C motor assemblies used in 
the airplanes identified in this supplemental NPRM. We acknowledge the 
commenter's concern. We only have event reports pertaining to the A/C 
motors addressed by this supplemental NPRM. If an additional unsafe 
condition is determined to exist on other A/C motors, we might consider 
future rulemaking. We have not changed this supplemental NPRM in this 
regard.

Request To Clarify ``Proposed AD Requirements''

    Cessna requested that we clarify the statement in the ``Proposed AD 
Requirements'' paragraph of the previous NPRM (77 FR 59146, September 
26, 2012) regarding motor brush replacement. Cessna suggested that the 
wording be changed from ``prohibiting use of the A/C system until 
replacement of the brushes as an option to the brush replacement'' to 
``prohibiting use of the A/C system until replacement of the brushes is 
accomplished.''
    We agree with the commenter's request because the suggested wording 
improves the clarity of the proposed actions. We have changed the 
``Proposed Requirements of the Supplemental NPRM'' paragraph of this 
supplemental NPRM accordingly.

FAA's Determination

    We are proposing this supplemental NPRM because we evaluated all 
the relevant information and determined the unsafe condition described 
previously is likely to exist or develop in other products of the same 
type design. Certain changes described above expand the scope of the 
original NPRM (77 FR 59146, September 26, 2012). As a result, we have 
determined that it is necessary to reopen the comment period to provide 
additional opportunity for the public to comment on this supplemental 
NPRM.

Proposed Requirements of the Supplemental NPRM

    This supplemental NPRM would require an inspection to determine if 
certain A/C compressor motors are installed; an inspection of the A/C 
compressor hour meter that has part number (P/N) 1134104-1 or P/N 
1134104-5 A/C compressor motors installed; repetitive replacement of 
the brushes, or as an option to the brush replacement, deactivation of 
the A/C

[[Page 9638]]

system with installation of a placard prohibiting use of the A/C system 
until replacement of the brushes is accomplished. This supplemental AD 
would also require, when the brushes are replaced, reporting of 
airplane information related to the replacement of the brushes, and 
sending the replaced motor brushes to the Cessna Aircraft Company for 
two replacement cycles.

Interim Action

    We consider this supplemental NPRM interim action. The reporting 
data required by this supplemental NPRM will enable us to obtain better 
insight into brush wear. The reporting data will also indicate if the 
replacement intervals we established are adequate. After we analyze the 
reporting data received, we might consider further rulemaking.
    Model 525 airplanes are not subject to this supplemental NPRM. We 
are currently considering requiring similar actions for these 
airplanes.

Costs of Compliance

    We estimate that this proposed AD will affect 1,987 airplanes of 
U.S. registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                Cost on U.S.
             Action                  Labor cost          Parts cost      Cost per product        operators
----------------------------------------------------------------------------------------------------------------
Inspection, drive motor          11 work-hours x     $252 per           $1,187 per         $2,358,569 per
 assembly brush replacement,      $85 per hour =      replacement        replacement        replacement cycle
 parts return, and reporting.     $935 per            cycle.             cycle.
                                  replacement cycle.
Optional fabrication of placard  1 work-hour x $85   $0                 $85                $168,895
 for deactivation.                per hour = $85.
Optional deactivation or         1 work-hour x $85   $0                 $85                $31,450
 reactivation for Model 560XL     per hour = $85.
 airplanes (370 airplanes).
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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

0
1. The authority citation for part 39 continues to read as follows:

    Authority:  49 U.S.C. 106(g), 40113, 44701.

Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

Cessna Aircraft Company: Docket No. FAA-2012-1001; Directorate 
Identifier 2012-NM-020-AD.

(a) Comments Due Date

    We must receive comments by March 28, 2013.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to the following Cessna Aircraft Company 
airplanes, certificated in any category.
    (1) Model 500 and 501 airplanes, serial numbers (S/N) 0001 
through 0689 inclusive.
    (2) Model 550 and 551 airplanes, S/Ns 0002 through 0733 
inclusive, and 0801 through 1136 inclusive.
    (3) Model S550 airplanes, S/Ns 0001 through 0160 inclusive.
    (4) Model 560 airplanes, S/Ns 0001 through 0707 inclusive, and 
0751 through 0815 inclusive.
    (5) Model 560XL airplanes, S/Ns 5001 through 5300 inclusive.
    (6) Model 650 airplanes, S/Ns 0200 through 0241 inclusive, and 
7001 through 7119 inclusive.

(d) Subject

    Joint Aircraft System Component (JASC)/Air Transport Association 
(ATA) of America Code 21, Air Conditioning.

(e) Unsafe Condition

    This AD was prompted by multiple reports of smoke and/or fire in 
the tailcone caused by sparking due to excessive wear of the brushes 
in the air conditioning (A/C) motor. We are issuing this AD to 
prevent the brushes in the A/C motor from wearing down, which could 
result in the rivet in the brush contacting the commutator causing 
sparks and consequent fire and/or smoke in the tailcone with no 
means to detect or extinguish the fire and/or smoke.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Inspection for Part Number (P/N)

    Within 30 days or 10 flight hours after the effective date of 
this AD, whichever occurs first: Inspect the A/C compressor motor to

[[Page 9639]]

determine whether P/N 1134104-1 or P/N 1134104-5 is installed. A 
review of airplane maintenance records is acceptable in lieu of this 
inspection if the part number of the A/C compressor motor can be 
conclusively determined from that review.

(h) Inspection of Compressor Hour Meter and Maintenance Records

    If, during the inspection required by paragraph (g) of this AD, 
any A/C compressor motor is found having P/N 1134104-1 or P/N 
1134104-5: Within 30 days or 10 flight hours after the effective 
date of this AD, whichever occurs first, determine the hour reading 
on the A/C compressor hour meter as specified in paragraphs (h)(1) 
and (h)(2) of this AD.
    (1) Inspect the number of hours on the A/C compressor hour 
meter; and
    (2) Check the airplane logbook for any entry for replacing the 
A/C compressor motor brushes with new brushes, or for replacing the 
compressor motor or compressor condenser module assembly (pallet) 
with a motor or assembly that has new brushes.
    (i) If the logbook contains an entry for replacement of parts, 
as specified in paragraph (h)(2) of this AD, determine the number of 
hours on the A/C compressor motor brushes by comparing the number of 
hours on the compressor motor since replacement and use this number 
in lieu of the number determined in paragraph (h)(1) of this AD. Or
    (ii) If, through the logbook check you cannot positively 
determine the number of hours on the A/C compressor motor brushes, 
as specified in paragraph (h)(2) of this AD, use the number of hours 
on the A/C compressor hour meter determined in paragraph (h)(1) of 
this AD or presume the brushes have over 500 hours time-in-service.

(i) Replacement

    Using the hour reading on the A/C compressor hour meter 
determined in paragraph (h) of this AD, replace the A/C compressor 
motor brushes with new brushes at the later of the times specified 
in paragraphs (i)(1) and (i)(2) of this AD. Thereafter, repeat the 
replacement of the A/C compressor motor brushes at intervals not to 
exceed 500 hours time-in-service on the A/C compressor motor. Do the 
replacement in accordance with the applicable Cessna maintenance 
manual subject specified in paragraphs (j)(1) through (j)(7) of this 
AD.
    (1) Before the accumulation of 500 total hours time-in-service 
on the A/C compressor motor.
    (2) Before further flight after doing the inspection required in 
paragraph (h) of this AD.

(j) Replacement Maintenance Manual Information

    Use the instructions in the applicable Cessna maintenance manual 
subject specified in paragraphs (j)(1) through (j)(7) of this AD to 
do the replacement required by paragraph (i) of this AD.
    (1) Subject 4-11-00, Replacement Time Limits, of Chapter 4, 
Airworthiness Limitations, Revision 10, dated April 23, 2012, of the 
Cessna Model 550, -0801 and On Maintenance Manual.
    (2) Subject 4-11-00, Replacement Time Limits, of Chapter 4, 
Airworthiness Limitations, Revision 8, dated April 23, 2012, of the 
Cessna Model 550/551 Maintenance Manual.
    (3) Subject 4-11-00, Replacement Time Limits, of Chapter 4, 
Airworthiness Limitations, Revision 20, dated April 23, 2012, of the 
Cessna Model 560, -0001 and On Maintenance Manual.
    (4) Subject 4-11-00, Replacement Time Limits, of Chapter 4, 
Airworthiness Limitations, Revision 13, dated April 23, 2012, of the 
Cessna Model 560XL, (560XL -5001 thru -5500), (560XL -5501 thru -
6000), (560XL -6001 and On) Maintenance Manual.
    (5) Subject 4-11-00, Replacement Time Limits, of Chapter 4, 
Airworthiness Limitations, Revision 30, dated April 23, 2012, of the 
Cessna Model 650 Maintenance Manual.
    (6) Subject 4-11-00, Replacement Time Limits General, of Chapter 
4, Airworthiness Limitations, Revision 4, dated April 23, 2012, of 
the Cessna Model 500/501, (-0001 thru -0349), (-0350 thru -0689) 
Maintenance Manual.
    (7) Subject 4-11-00, Replacement Time Limits, of Chapter 4, 
Airworthiness Limitations, Revision 7, dated April 23, 2012, of the 
Cessna Model S550 Maintenance Manual.

(k) Deactivation of A/C System

    In lieu of replacing the A/C compressor motor brushes as 
required by this AD, deactivate the A/C system as specified in 
paragraph (k)(1), (k)(2), or (k)(3) of this AD, as applicable.
    (1) For all airplanes except Model 560XL and 650 airplanes: Pull 
the vapor cycle A/C circuit breaker labeled ``AIR COND,'' do the 
actions specified in paragraphs (k)(1)(i) and (k)(1)(ii) of this AD, 
and document deactivation of the system in the airplane logbook, 
referring to this AD as the reason for deactivation. While the 
system is deactivated, airplane operators must remain aware of 
operating temperature limitations specified in the applicable 
airplane flight manual.
    (i) Fabricate a placard that states: ``A/C DISABLED'' with 1/8-
inch black lettering on a white background.
    (ii) Install the placard on the airplane instrument panel within 
6 inches of the A/C selection switch.
    (2) For Model 650 airplanes: Pull the vapor cycle A/C circuit 
breaker labeled ``FWD EVAP FAN,'' do the actions specified in 
paragraphs (k)(1)(i) and (k)(1)(ii) of this AD, and document 
deactivation of the system in the airplane logbook, referring to 
this AD as the reason for deactivation. While the system is 
deactivated, airplane operators must remain aware of operating 
temperature limitations specified in the applicable airplane flight 
manual.
    (3) For Model 560XL airplanes: Do the actions specified in 
paragraphs (k)(1)(i) and (k)(1)(ii) of this AD, and document 
deactivation of the system in the airplane logbook, referring to 
this AD as the reason for deactivation. While the system is 
deactivated, airplane operators must remain aware of operating 
temperature limitations specified in the applicable airplane flight 
manual. Remove the fuse limiter that supplies power to the A/C 
compressor motor by doing the actions specified in paragraphs 
(k)(3)(i) through (k)(3)(viii) of this AD, and return to the 
airplane to service by doing the actions specified in paragraphs 
(k)(3)(ix) through (k)(3)(xiii) of this AD.
    (i) Open the battery door.
    (ii) Disconnect the main battery connector and remove external 
electrical power.
    (iii) Tag the battery and external power receptacle with a 
warning tag that reads:
    ``WARNING: Do not connect the battery connector during the 
maintenance in progress.''
    (iv) Gain access to the J-Box through the tailcone access door.
    (v) Remove the wing nuts that attach the cover to the J-Box.
    (vi) Remove the J-Box cover.
    (vii) Remove nuts securing compressor fuse limiter (reference 
designator HZ116, P/N ANL130) to the bus bar.
    (viii) Remove the compressor motor fuse limiter from the 
terminals and retain for future reinstallation once the compressor 
motor brushes have been replaced.
    (ix) Install fuse limiter nuts on the terminals and torque to 
100 inch-pounds +/- 5 inch-pounds.
    (x) Install the J-Box cover with wing nuts.
    (xi) Remove the warning tag on the battery and external power 
receptacle.
    (xii) Connect the battery and restore electrical power to the 
airplane.
    (xiii) Close the tailcone access door.

(l) Reactivation of A/C System

    If an operator chooses to deactivate the A/C system, as 
specified in paragraph (k) of this AD, and then later chooses to 
return the A/C system to service: Before returning the A/C system to 
service and removing the placard, perform the inspection specified 
in paragraph (h) of this AD, and do the replacements specified in 
paragraph (i) of this AD, at the times specified in paragraph (i) of 
this AD. Return the A/C system to service by doing the actions 
specified in paragraph (l)(1), (l)(2), or (l)(3) of this AD, as 
applicable.
    (1) For all airplanes except Model 560XL and 650 airplanes: Push 
in the vapor cycle A/C circuit breaker labeled ``AIR COND,'' remove 
the placard by the A/C selection switch that states ``A/C 
DISABLED,'' and document reactivation of the system in the airplane 
logbook.
    (2) For Model 650 airplanes: Push in the vapor cycle A/C circuit 
breaker labeled ``FWD EVAP FAN,'' remove the placard by the A/C 
selection switch that states ``A/C DISABLED'', and document 
reactivation of the system in the airplane logbook.
    (3) For Model 560XL airplanes: Remove the placard by the A/C 
selection switch that states ``A/C DISABLED,'' and document 
reactivation of the system in the airplane logbook. Re-install the 
fuse limiter by doing the actions specified in paragraphs (l)(3)(i) 
through (l)(3)(viii) of this AD, and return to the airplane to 
service by doing the actions specified in paragraphs (l)(3)(ix) 
through (l)(3)(xiii) of this AD.

[[Page 9640]]

    (i) Open the battery door.
    (ii) Disconnect the main battery connector and remove external 
electrical power.
    (iii) Tag the battery and external power receptacle with a 
warning tag that reads:
    ``WARNING: Do not connect the battery connector during the 
maintenance in progress.''
    (iv) Gain access to the J-Box through the tailcone access door.
    (v) Remove the wing nuts that attach the cover to the J-Box.
    (vi) Remove the J-Box cover.
    (vii) Remove the fuse limiter nuts on the bus bar terminals for 
the fuse limiter.
    (viii) Install the compressor motor fuse limiter (reference 
designator HZ116, P/N ANL130).
    (ix) Install fuse limiter nuts on the terminals and torque to 
100 inch-pounds +/- 5 inch-pounds.
    (x) Install the J-Box cover with wing nuts.
    (xi) Remove the warning tag on the battery and external power 
receptacle.
    (xii) Connect the battery and restore electrical power to the 
airplane.
    (xiii) Close the tailcone access door.

(m) Parts Return and Reporting Requirements

    For the first two A/C compressor motor brush replacement cycles 
on each airplane, send the brushes that were removed to Cessna 
Aircraft Company, Cessna Service Parts and Programs, 7121 Southwest 
Boulevard, Wichita, KS 67215. Provide the brushes and the 
information specified in paragraphs (m)(1) through (m)(6) of this AD 
within 30 days after the replacement, if the replacement was done on 
or after the effective date of this AD, or within 30 days after the 
effective date of this AD, if the replacement was done before the 
effective date of this AD.
    (1) The model and serial number of the airplane.
    (2) The part number of the motor.
    (3) The part number of the brushes, if known.
    (4) The elapsed amount of motor hours since the last brush/motor 
replacement, if known.
    (5) If motor hours are unknown, report the elapsed airplane 
flight hours since the last brush/motor replacement and indicate 
that motor hours are unknown.
    (6) The number of motor hours currently displayed on the pallet 
hour meter.

(n) Parts Installation Limitation

    As of the effective date of this AD, no person may install an A/
C compressor motor having P/N 1134104-1 or P/N 1134104-5, unless the 
inspection specified in paragraph (h) of this AD is done before 
further flight, and the replacements specified in paragraph (i) of 
this AD are done at the times specified in paragraph (i) of this AD.

(o) Special Flight Permit Prohibition

    Operation of the A/C system is prohibited while flying with a 
special flight permit issued for this AD.

(p) Paperwork Reduction Act Burden Statement

    A federal agency may not conduct or sponsor, and a person is not 
required to respond to, nor shall a person be subject to a penalty 
for failure to comply with a collection of information subject to 
the requirements of the Paperwork Reduction Act unless that 
collection of information displays a current valid OMB Control 
Number. The OMB Control Number for this information collection is 
2120-0056. Public reporting for this collection of information is 
estimated to be approximately 5 minutes per response, including the 
time for reviewing instructions, completing and reviewing the 
collection of information. All responses to this collection of 
information are mandatory. Comments concerning the accuracy of this 
burden and suggestions for reducing the burden should be directed to 
the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: 
Information Collection Clearance Officer, AES-200.

(q) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Wichita 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.

(r) Related Information

    (1) For more information about this AD, contact Christine 
Abraham, Aerospace Engineer, Electrical Systems and Avionics Branch, 
ACE-119W, FAA, Wichita Aircraft Certification Office, 1801 Airport 
Road, Room 100, Wichita, Kansas 67209; phone: 316-946-4165; fax: 
316-946-4107; email: wichita-cos@faa.gov.
    (2) For service information identified in this AD, contact 
Cessna Aircraft Co., P.O. Box 7706, Wichita, KS 67277; telephone 
316-517-6215; fax 316-517-5802; email 
citationpubs@cessna.textron.com; Internet https://www.cessnasupport.com/newlogin.html. You may review copies of the 
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 February 1, 2013.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2013-02992 Filed 2-8-13; 8:45 am]
BILLING CODE 4910-13-P