[Federal Register Volume 70, Number 96 (Thursday, May 19, 2005)]
[Proposed Rules]
[Pages 28857-28859]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 05-9988]



[[Page 28857]]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2005-21109; Directorate Identifier 2005-CE-21-AD]
RIN 2120-AA64


Airworthiness Directives; The Cessna Aircraft Company Models 525, 
525A, and 525B Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) 
for certain The Cessna Aircraft Company (Cessna) Models 525, 525A, and 
525B airplanes. This proposed AD would require you to install 
identification sleeves on the wiring for both engine fire extinguisher 
bottles. This proposed AD results from reports of incorrectly 
connecting the wires to the engine fire extinguisher bottles. We are 
issuing this proposed AD to prevent incorrect installation of the wires 
to the engine fire extinguisher bottles, which could result in failure 
of the engine fire extinguisher bottles to discharge when activated. 
This failure could lead to the inability to control an engine fire.

DATES: We must receive any comments on this proposed AD by July 19, 
2005.

ADDRESSES: Use one of the following to submit comments on this proposed 
AD:
     DOT Docket Web site: Go to http://dms.dot.gov and follow 
the instructions for sending your comments electronically.
     Government-wide rulemaking Web site: Go to http://www.regulations.gov and follow the instructions for sending your 
comments electronically.
     Mail: Docket Management Facility; U.S. Department of 
Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401, 
Washington, DC 20590-0001.
     Fax: 1-202-493-2251.
     Hand Delivery: Room PL-401 on the plaza level of the 
Nassif Building, 400 Seventh Street, SW., Washington, DC, between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    To get the service information identified in this proposed AD, 
contact The Cessna Aircraft Company, Citation Marketing Division, 
Product Support P.O. Box 7706, Wichita, Kansas 67277; telephone: (316) 
517-6000; facsimile: (316) 517-8500.
    To view the comments to this proposed AD, go to http://dms.dot.gov. 
The docket number is FAA-2005-21109; Directorate Identifier 2005-CE-21-
AD.

FOR FURTHER INFORMATION CONTACT: James P. Galstad, Aerospace Engineer, 
FAA, Wichita ACO, 1801 Airport Road, Mid-Continent Airport, Wichita, 
Kansas 67209; telephone: (316) 946-4135; facsimile: (316) 946-4107.

SUPPLEMENTARY INFORMATION:

Comments Invited

    How do I comment on this proposed AD? We invite you to submit any 
written relevant data, views, or arguments regarding this proposal. 
Send your comments to an address listed under ADDRESSES. Include the 
docket number, ``FAA-2005-21109; Directorate Identifier 2005-CE-21-AD'' 
at the beginning of your comments. We will post all comments we 
receive, without change, to http://dms.dot.gov, including any personal 
information you provide. We will also post a report summarizing each 
substantive verbal contact with FAA personnel concerning this proposed 
rulemaking. Using the search function of our docket Web site, anyone 
can find and read the comments received into any of our dockets, 
including the name of the individual who sent the comment (or signed 
the comment on behalf of an association, business, labor union, etc.). 
This is docket number FAA-2005-21109; Directorate Identifier 2005-CE-
21-AD. You may review the DOT's complete Privacy Act Statement in the 
Federal Register published on April 11, 2000 (65 FR 19477-78) or you 
may visit http://dms.dot.gov.
    Are there any specific portions of this proposed AD I should pay 
attention to? We specifically invite comments on the overall 
regulatory, economic, environmental, and energy aspects of this 
proposed AD. If you contact us through a nonwritten communication and 
that contact relates to a substantive part of this proposed AD, we will 
summarize the contact and place the summary in the docket. We will 
consider all comments received by the closing date and may amend this 
proposed AD in light of those comments and contacts.

Docket Information

    Where can I go to view the docket information? You may view the AD 
docket that contains the proposal, any comments received, and any final 
disposition in person at the DMS Docket Offices between 9 a.m. and 5 
p.m. (eastern standard time), Monday through Friday, except Federal 
holidays. The Docket Office (telephone 1-800-647-5227) is located on 
the plaza level of the Department of Transportation NASSIF Building at 
the street address stated in ADDRESSES. You may also view the AD docket 
on the Internet at http://dms.dot.gov. The comments will be available 
in the AD docket shortly after the DMS receives them.

Discussion

    What events have caused this proposed AD? Wires connected to the 
engine fire extinguisher bottles on Cessna Models 525B and 560XL 
airplane were found reversed. Installing the wiring in an incorrect 
configuration resulted from a lack of clarity in the wiring schematics 
for connecting the wires and testing the connections.
    The same lack of clarity in the wiring schematics for connecting 
the wires and testing the connections also exists for Cessna Models 525 
and 525A airplanes.
    An incorrect wiring configuration installation could go undetected 
because the existing circuit checks appear normal during routine 
checks. However, the engine fire extinguisher bottles will not 
discharge when activated.
    What is the potential impact if FAA took no action? If not detected 
and corrected, incorrect wiring of the engine fire extinguisher bottles 
could result in failure of the engine fire extinguisher bottles to 
discharge when activated. This failure could lead to the inability to 
control an engine fire.
    Is there service information that applies to this subject? Cessna 
has issued the following service bulletins:

--Citation Service Bulletin SB525-26-01, dated April 5, 2005;
--Citation Service Bulletin SB525A-26-02, dated April 5, 2005; and
--Citation Service Bulletin SB525B-26-01, dated April 5, 2005.

    What are the provisions of this service information? These service 
bulletins include procedures for:

--Installing identification sleeves on wires connecting to the engine 
fire extinguisher bottles;
--Reconnecting the wires to the engine fire extinguisher bottles; and
--Testing the wiring for correct installation.

FAA's Determination and Requirements of This Proposed AD

    What has FAA decided? We have evaluated all pertinent information 
and identified an unsafe condition that is likely to exist or develop 
on other products of this same type design. For this reason, we are 
proposing AD action.
    What would this proposed AD require? This proposed AD would

[[Page 28858]]

require you to incorporate the actions in the previously-referenced 
service bulletin.
    How does the revision to 14 CFR part 39 affect this proposed AD? On 
July 10, 2002, we published a new version of 14 CFR part 39 (67 FR 
47997, July 22, 2002), which governs FAA's AD system. This regulation 
now includes material that relates to altered products, special flight 
permits, and alternative methods of compliance. This material 
previously was included in each individual AD. Since this material is 
included in 14 CFR part 39, we will not include it in future AD 
actions.

Costs of Compliance

    How many airplanes would this proposed AD impact? We estimate that 
this proposed AD affects 578 airplanes in the U.S. registry.
    What would be the cost impact of this proposed AD on owners/
operators of the affected airplanes? We estimate the following costs to 
accomplish this proposed modification:

----------------------------------------------------------------------------------------------------------------
                                                                   Total cost per
              Labor cost                        Parts cost            airplane      Total cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
4 workhours x $65 per hour = $260.....  Not applicable...........         $260.00  $260 x 578 = $150,280.
----------------------------------------------------------------------------------------------------------------

    Cessna will provide warranty credit for the modification to the 
extent stated in the supplemental data to the service information.

Authority for This Rulemaking

    What authority does FAA have for issuing this rulemaking action? 
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 AD.

Regulatory Findings

    Would this proposed AD impact various entities? We have 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.
    Would this proposed AD involve a significant rule or regulatory 
action? For the reasons discussed above, I certify that this proposed 
AD:
    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); and
    3. 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.
    We prepared a summary of the costs to comply with this proposed AD 
(and other information as included in the Regulatory Evaluation) and 
placed it in the AD Docket. You may get a copy of this summary by 
sending a request to us at the address listed under ADDRESSES. Include 
``AD Docket FAA-2005-21109; Directorate Identifier 2005-CE-21-AD'' in 
your request.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the Federal Aviation Administration 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.


Sec.  39.13  [Amended]

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

The Cessna Aircraft Company: Docket No. FAA-2005-21109; Directorate 
Identifier 2005-CE-21-AD

When Is the Last Date I Can Submit Comments on This Proposed AD?

    (a) We must receive comments on this proposed airworthiness 
directive (AD) by July 19, 2005.

What Other ADs Are Affected by This Action?

    (b) None.

What Airplanes Are Affected by This AD?

    (c) This AD affects the following airplane models and serial 
numbers that are certificated in any category:

------------------------------------------------------------------------
              Model                             Serial Nos.
------------------------------------------------------------------------
525.............................  525-0001 through 525-0600.
525A............................  525A-0001 through 525A-0234.
525B............................  525B-0001 through 525B-0035.
------------------------------------------------------------------------

What Is the Unsafe Condition Presented in This AD?

    (d) This AD is the result of reports about the possibility to 
incorrectly connect the wires to the engine fire extinguisher 
bottles. The actions specified in this AD are intended to prevent 
incorrect installation of the wires to the engine fire extinguisher 
bottles, which could result in failure of the engine fire 
extinguisher bottles to discharge when activated. This failure could 
lead to the inability to control an engine fire.

What Must I Do To Address This Problem?

    (e) To address this problem, you must do the following:

------------------------------------------------------------------------
           Actions                 Compliance            Procedures
------------------------------------------------------------------------
(1) Install identification    Within the next 60    Follow the
 sleeves on the wires for      days or 100 hours     Accomplishment
 both engine fire              time-in-service       Instructions in:
 extinguisher bottles.         after the effective  (i) Cessna Citation
                               date of this AD,      Service Bulletin
                               whichever occurs      SB525-26-01;
                               first.               (ii) Cessna Citation
                                                     Service Bulletin
                                                     SB525A-26-02; or
                                                    (iii) Cessna
                                                     Citation Service
                                                     Bulletin SB525B-26-
                                                     01, all dated April
                                                     5, 2005, as
                                                     applicable.

[[Page 28859]]

 
(2) Reconnect the wires to    Prior to further      Use the service
 both engine fire              flight after the      information in
 extinguisher bottles.         sleeve installation   paragraphs
                               required in           (e)(1)(i) through
                               paragraph (e)(1) of   (e)(1)(iii) of this
                               this AD.              AD
(3) Test the wires for        Prior to further      Use the service
 correct installation.         flight after          information in
                               reconnecting the      paragraphs
                               wires as required     (e)(1)(i) through
                               in paragraph (e)(2)   (e)(1)(iii) of this
                               of this AD..          AD.
------------------------------------------------------------------------

May I Request an Alternative Method of Compliance?

    (f) You may request a different method of compliance or a 
different compliance time for this AD by following the procedures in 
14 CFR 39.19. Unless FAA authorizes otherwise, send your request to 
your principal inspector. The principal inspector may add comments 
and will send your request to the Manager, Wichita Aircraft 
Certification Office (ACO), FAA. For information on any already 
approved alternative methods of compliance, contact James P. 
Galstad, Aerospace Engineer, FAA Wichita ACO, 1801 Airport Road, 
Mid-Continent Airport, Wichita, Kansas 67209; telephone: (316) 946-
4135; facsimile: (316) 946-4107.

May I Get Copies of the Documents Referenced in This AD?

    (g) To get copies of the documents referenced in this AD, 
contact The Cessna Aircraft Company, Citation Marketing Division, 
Product Support P.O. Box 7706, Wichita, Kansas 67277; telephone: 
(316) 517-6000; facsimile: (316) 517-8500. To view the AD docket, go 
to the Docket Management Facility; U.S. Department of 
Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-
401, Washington, DC, or on the Internet at http://dms.dot.gov. The 
docket number is Docket No. FAA-2005-21109; Directorate Identifier 
2005-CE-21-AD.

    Issued in Kansas City, Missouri, on May 12, 2005.
Kim Smith,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 05-9988 Filed 5-18-05; 8:45 am]
BILLING CODE 4910-13-P