9636 Federal Register / Vol. 78, No. 28 / Monday, February 11, 2013 / Proposed Rules 

Issued in Fort Worth, Texas, on February 

1, 2013. 

Kim Smith, 

Directorate Manager, Rotorcraft Directorate, 

Aircraft Certification Service. 

[FR Doc. 2013–02989 Filed 2–8–13; 8:45 am] 

BILLING CODE 4910–13–P 

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. 

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 


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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 


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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

Action Labor cost Parts cost Cost per product Cost on U.S. 

operators 

Inspection, drive motor assembly brush replacement, 

parts return, and reporting.

11 work-hours × $85 per hour 

= $935 per replacement 

cycle.

$252 per replacement cycle .. $1,187 per replacement cycle $2,358,569 per 

replacement 

cycle 

Optional fabrication of placard 

for deactivation.

1 work-hour × $85 per hour = 

$85.

$0 $85 $168,895 

Optional deactivation or reactivation for Model 560XL 

airplanes (370 airplanes).

1 work-hour × $85 per hour = 

$85.

$0 $85 $31,450 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. ‘‘Subtitle VII: 

Aviation Programs’’ describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in Subtitle VII, 

Part A, Subpart III, Section 44701: 

‘‘General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

Regulatory Findings 

We determined that this proposed AD 

would not have federalism implications 

under Executive Order 13132. This 

proposed AD would not have a 

substantial direct effect on the States, on 

the relationship between the national 

Government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify this proposed regulation: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

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

the DOT Regulatory Policies and 

Procedures (44 FR 11034, February 26, 

1979), 

(3) Will not affect intrastate aviation 

in Alaska, and 

(4) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 14 CFR part 

39 as follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

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

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive (AD): 

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 


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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. 


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9640 Federal Register / Vol. 78, No. 28 / Monday, February 11, 2013 / Proposed Rules 

(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 

DEPARTMENT OF HOMELAND 

SECURITY 

Coast Guard 

33 CFR Part 165 

[Docket No. USCG–2013–0020] 

RIN 1625–AA00 

Safety Zones; Annual Events 

Requiring Safety Zones in the Captain 

of the Port Lake Michigan Zone 

AGENCY: Coast Guard, DHS. 

ACTION: Notice of proposed rulemaking. 

SUMMARY: The Coast Guard proposes to 

amend its regulation requirements for 

Safety Zones; Annual Events requiring 

safety zones in the Captain of the Port 

Lake Michigan zone. This proposed rule 

is intended to update the list of 

permanent safety zones regulations. 

Specifically, this rule proposes to 

remove one safety zone, amend the 

locations and/or enforcement times for 

eight zones, and add three new zones. 

The safety zones established by this 

proposed rule are necessary to protect 

spectators, participants, and vessels 

from the hazards associated with 

fireworks displays, boat races, air 

shows, and other events. 

DATES: Comments and related materials 

must be received by the Coast Guard on 

or before March 13, 2013. 

ADDRESSES: You may submit comments 

identified by docket number USCG– 

2013–0020 using any one of the 

following methods: 

(1) Federal eRulemaking Portal: 

http://www.regulations.gov. 

(2) Fax: 202–493–2251. 

(3) Mail: Docket Management Facility 

(M–30), U.S. Department of 

Transportation, West Building Ground 

Floor, Room W12–140, 1200 New Jersey 

Avenue SE., Washington, DC 20590– 

0001. 

(4) Hand delivery: Same as mail 

address above, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. The telephone number 

is 202–366–9329. 

To avoid duplication, please use only 

one of these four methods. See the 

‘‘Public Participation and Request for 

Comments’’ portion of the 

SUPPLEMENTARY INFORMATION section 

below for instructions on submitting 

comments. 

FOR FURTHER INFORMATION CONTACT: If 

you have questions on this proposed 

rule, call or email MST1 Joseph 

McCollum, Prevention Department, 

Coast Guard, Sector Lake Michigan, 

Milwaukee, WI, telephone (414) 747– 


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