Airworthiness Directives; Cessna Model 500, 550, S550, 560, 560XL, and 750 Airplanes, 57213-57215 [05-19568]

Download as PDF Federal Register / Vol. 70, No. 189 / Friday, September 30, 2005 / Proposed Rules records kept by the NPPO of Peru or its designated representative must be made available to APHIS upon request. (f) Cold treatment. The fruit must be cold treated for Anastrepha fraterculus, A. obliqua, A. serpentina, and Ceratitis capitata (Mediterranean fruit fly) in accordance with part 305 of this chapter. (g) Phytosanitary inspection. Each consignment of fruit must be accompanied by a phytosanitary certificate issued by the NPPO of Peru stating that the fruit has been inspected and found free of Ecdytolopha aurantiana. (h) Port of first arrival sampling. Citrus fruits imported from Peru are subject to inspection by an inspector at the port of first arrival into the United States in accordance with § 319.56– 2d(b)(8). At the port of first arrival, an inspector will sample and cut citrus fruits from each shipment to detect pest infestation. If a single live fruit fly in any stage of development or a single E. aurantiana is found, the shipment will be held until an investigation is completed and appropriate remedial actions have been implemented. Done in Washington, DC, this 27th day of September 2005. W. Ron DeHaven, Administrator, Animal and Plant Health Inspection Service. [FR Doc. 05–19574 Filed 9–29–05; 8:45 am] BILLING CODE 3410–34–U DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2005–22558; Directorate Identifier 2005–NM–107–AD] RIN 2120–AA64 Airworthiness Directives; Cessna Model 500, 550, S550, 560, 560XL, and 750 Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM). AGENCY: SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) for certain Cessna Model 500, 550, S550, 560, 560XL, and 750 airplanes. This proposed AD would require installing identification sleeves on the wires for the positive and negative terminal studs of the engine and/or auxiliary power unit (APU) fire extinguishing bottles, as applicable, and re-connecting the wires VerDate Aug<31>2005 15:30 Sep 29, 2005 Jkt 205001 to the correct terminal studs. This proposed AD results from a report of mis-wired fire extinguishing bottles. We are proposing this AD to ensure that the fire extinguishing bottles are activated in the event of an engine or APU fire, and that flammable fluids are not supplied during a fire, which could result in an unextinguished fire in the nacelle or APU. DATES: We must receive comments on this proposed AD by November 14, 2005. ADDRESSES: Use one of the following addresses 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. • Fax: (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. Contact Cessna Aircraft Co., P.O. Box 7706, Wichita, Kansas 67277, for the service information identified in this proposed AD. FOR FURTHER INFORMATION CONTACT: Robert D. Adamson, Aerospace Engineer, Systems and Propulsion Branch, ACE–116W, FAA, Wichita Aircraft Certification Office, 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas 67209; telephone (316) 946–4145; fax (316) 946–4107. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to submit any relevant written data, views, or arguments regarding this proposed AD. Include the docket number ‘‘FAA–2005–22558; Directorate Identifier 2005–NM–107– AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of the proposed AD. We will consider all comments received by the closing date and may amend the proposed AD in light of those 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 PO 00000 Frm 00008 Fmt 4702 Sfmt 4702 57213 substantive verbal contact with FAA personnel concerning this proposed AD. Using the search function of that web site, anyone can find and read the comments in 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.). You may review 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. Examining the Docket You may examine the AD docket on the Internet at http://dms.dot.gov, or in person at the Docket Management Facility office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The Docket Management Facility office (telephone (800) 647–5227) is located on the plaza level of the Nassif Building at the DOT street address stated in the ADDRESSES section. Comments will be available in the AD docket shortly after the Docket Management System receives them. Discussion We have received a report indicating that the auxiliary power unit (APU) fire extinguishing system was mis-wired on some Cessna Model 750 airplanes. Although the main engine fire extinguishing system on all Cessna Model 750 airplanes is wired correctly, further investigation revealed that the fire extinguishing systems on the main engines of Cessna Model 500, 550, S550, 560 airplanes, and on the main engines and APUs of Cessna Model 560XL airplanes may not be wired correctly. Therefore, all of these models may be subject to the same or similar unsafe condition found on the Cessna Model 750 APU installation. The engine and APU fire extinguishing bottles on these airplane models have positive and negative terminal studs that are the same size, so it is possible to crossconnect the wiring of the positive and negative leads. If the wiring is crossconnected and the fire extinguishing bottles are activated, the circuit breaker may trip due to the direct ground on the positive lead, and no fire extinguishing agent would be expelled. In addition, with the exception of the Model 750 APU installation, the tripped circuit breaker removes power from the fuel and hydraulic firewall shutoff valves, which are powered closed from a normally open state, and from the associated cockpit indications. As a result, flammable fluids could continue to be supplied to the area during a fire. It should be noted that the APU E:\FR\FM\30SEP1.SGM 30SEP1 57214 Federal Register / Vol. 70, No. 189 / Friday, September 30, 2005 / Proposed Rules installation on the Cessna Model 750 airplanes has a solenoid valve that is powered open from the normally closed state and would close to shut off fuel with the disruption of power. The circuit breaker that provides power to the extinguishing bottle differs from the circuit breaker that controls the shutoff valve that is powered on. Finally, the flightcrew would know that the fire had not been extinguished because the engine fire annunciator would stay illuminated, and the annunciators for the firewall shutoff valve may not illuminate if the valve does not close. Thus, the flightcrew would not know why the fire had not been extinguished. These conditions, if not corrected, could result in an unextinguished fire in the nacelle or APU. Relevant Service Information We have reviewed the Cessna service bulletins in the table below. CESSNA SERVICE BULLETINS For Cessna airplane model Service bulletin Revision 500 ........................................................................................................................... 550 ........................................................................................................................... S550 ......................................................................................................................... 560 ........................................................................................................................... 560XL ....................................................................................................................... 750 ........................................................................................................................... 500–26–02 ....... 550–26–05 ....... S550–26–02 ..... 560–26–01 ....... 560XL–26–02 ... 750–26–05 ....... Original ............. Original ............. Original ............. Original ............. 1 ....................... Original ............. The service bulletins describe procedures for installing identification sleeves on the wires for the positive and negative terminal studs of the engine and/or APU fire extinguishing bottles; re-connecting the wires to the correct studs; testing the connection; and, for all but the Cessna Model 750 airplanes, re-connecting the wires if necessary until the connection tests correctly. For Cessna Model 500, 550, S550, and 560 airplanes, these actions are done for the engine fire extinguishing bottles only. For Cessna Model 750 airplanes, these actions are done for the APU fire extinguishing bottle only. For Cessna Model 560XL airplanes, this action is done for both the engine and the APU fire extinguishing bottles. The service bulletins also specify that operators should send a maintenance transaction report to the manufacturer. Accomplishing the actions specified in the service information is intended to adequately address the unsafe condition. FAA’s Determination and Requirements of the Proposed AD Date April 1, 2005. April 1, 2005. April 1, 2005. April 1, 2005. December 22, 2004. November 24, 2004. procedures for submitting a maintenance transaction report to the manufacturer, this proposed AD would not require that action. We do not need this information from operators. We have evaluated all pertinent information and identified an unsafe condition that is likely to exist or develop on other airplanes of this same type design. For this reason, we are proposing this AD, which would require accomplishing the actions specified in the service information described previously, except as discussed under ‘‘Differences Between the Proposed AD and the Service Bulletins.’’ Clarification of Service Bulletin 750– 26–05 Differences Between the Proposed AD and the Service Bulletins There are about 2,801 airplanes of the affected design in the worldwide fleet. The following table provides the estimated costs for U.S. operators to comply with this proposed AD. Operators should note that, although the Accomplishment Instructions of the referenced service bulletins describe Although Cessna Service Bulletin 750–26–05 does not specify procedures for re-connecting the wires if necessary until the connection tests correctly, that action is implied in the service bulletin and would be required in this proposed AD. Costs of Compliance ESTIMATED COSTS Modification for Cessna model— 500, 550, S550, and 560 airplanes ......... 560XL airplanes ....................................... 750 airplanes ........................................... 3 4 2 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 VerDate Aug<31>2005 15:30 Sep 29, 2005 Jkt 205001 Average labor rate per hour Work hours $65 65 65 Cost per airplane Parts $50 100 25 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. PO 00000 Frm 00009 Fmt 4702 Sfmt 4702 Number of U.S.-registered airplanes $245 360 155 1,827 331 211 Fleet cost $447,615 119,160 32,705 Regulatory Findings 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. For the reasons discussed above, I certify that the proposed regulation: E:\FR\FM\30SEP1.SGM 30SEP1 57215 Federal Register / Vol. 70, No. 189 / Friday, September 30, 2005 / Proposed Rules 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 regulatory evaluation of the estimated costs to comply with this proposed AD and placed it in the AD docket. See the ADDRESSES section for a location to examine the regulatory evaluation. 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 FAA proposes to amend 14 CFR part 39 as follows: by adding the following new airworthiness directive (AD): Cessna Aircraft Company: Docket No. FAA– 2005–22558; Directorate Identifier 2005– NM–107–AD. Comments Due Date (a) The FAA must receive comments on this AD action by November 14, 2005. PART 39—AIRWORTHINESS DIRECTIVES Affected ADs 1. The authority citation for part 39 continues to read as follows: Applicability (b) None. Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The Federal Aviation Administration (FAA) amends § 39.13 (c) This AD applies to Cessna Model 500, 550, S550, 560, 560XL, and 750 airplanes, certificated in any category; as identified in the service bulletins in Table 1 of this AD. TABLE 1.—CESSNA SERVICE BULLETINS Service bulletin Revision Date 500–26–02 ..................................................................................................................... 550–26–05 ..................................................................................................................... S550–26–02 .................................................................................................................. 560–26–01 ..................................................................................................................... 560XL–26–02 ................................................................................................................ 750–26–05 ..................................................................................................................... Original ............. Original ............. Original ............. Original ............. 1 ....................... Original ............. April 1, 2005 ................ April 1, 2005 ................ April 1, 2005 ................ April 1, 2005 ................ December 22, 2004 .... November 24, 2004 .... Unsafe Condition (d) This AD results from a report of miswired fire extinguishing bottles. We are issuing this AD to ensure that the fire extinguishing bottles are activated in the event of an engine or auxiliary power unit (APU) fire, and that flammable fluids are not supplied during a fire, which could result in an unextinguished fire in the nacelle or APU. Compliance (e) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Installation (f) Within 100 flight hours or 60 days after the effective date of this AD, whichever occurs first: Install identification sleeves on the wires for the positive and negative terminal studs of the applicable fire extinguishing bottles identified in paragraphs (f)(1), (f)(2), and (f)(3) of this AD; re-connect the wires to the correct studs; test the connection; and re-connect the wires again as applicable until the connection tests correctly. Do all actions in accordance with the Accomplishment Instructions of the applicable service bulletin in Table 1 of this AD. (1) For Cessna Model 500, 550, S550, and 560 airplanes: The engine fire extinguishing bottles. (2) For Cessna Model 560XL airplanes: The engine and the APU fire extinguishing bottles. (3) For Cessna Model 750 airplanes: The APU fire extinguishing bottle. VerDate Aug<31>2005 15:30 Sep 29, 2005 Jkt 205001 No Reporting Requirement (g) Although the Accomplishment Instructions of the service bulletins identified in Table 1 of this AD describe procedures for submitting a maintenance transaction report to the manufacturer, this AD does not require that action. Actions Accomplished in Accordance With Earlier Revision of Service Bulletin (h) Actions done before the effective date of this AD in accordance with the Accomplishment Instructions of Cessna Service Bulletin 560XL–26–02, dated November 22, 2004, are acceptable for compliance with the corresponding action in this AD. Parts Installation (i) After the effective date of this AD, no person may install on any airplane a fire extinguishing bottle unless identification sleeves on the wires for the positive and negative terminal studs have been installed in accordance with paragraph (f) of this AD. Alternative Methods of Compliance (AMOCs) (j)(1) The Manager, Wichita Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. (2) Before using any AMOC approved in accordance with § 39.19 on any airplane to which the AMOC applies, notify the appropriate principal inspector in the FAA Flight Standards Certificate Holding District Office. PO 00000 Frm 00010 Fmt 4702 Sfmt 4702 Cessna model (airplanes) 500 550 S550 560 560XL 750 Issued in Renton, Washington, on September 21, 2005. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05–19568 Filed 9–29–05; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2005–22561; Directorate Identifier 2005–NM–136–AD] RIN 2120–AA64 Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model ERJ 170 Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM). AGENCY: SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) for certain EMBRAER Model ERJ 170 airplanes. This proposed AD would require doing a general visual inspection of the passenger seat track attachments to determine if the E:\FR\FM\30SEP1.SGM 30SEP1

Agencies

[Federal Register Volume 70, Number 189 (Friday, September 30, 2005)]
[Proposed Rules]
[Pages 57213-57215]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 05-19568]


=======================================================================
-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2005-22558; Directorate Identifier 2005-NM-107-AD]
RIN 2120-AA64


Airworthiness Directives; Cessna Model 500, 550, S550, 560, 
560XL, and 750 Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) 
for certain Cessna Model 500, 550, S550, 560, 560XL, and 750 airplanes. 
This proposed AD would require installing identification sleeves on the 
wires for the positive and negative terminal studs of the engine and/or 
auxiliary power unit (APU) fire extinguishing bottles, as applicable, 
and re-connecting the wires to the correct terminal studs. This 
proposed AD results from a report of mis-wired fire extinguishing 
bottles. We are proposing this AD to ensure that the fire extinguishing 
bottles are activated in the event of an engine or APU fire, and that 
flammable fluids are not supplied during a fire, which could result in 
an unextinguished fire in the nacelle or APU.

DATES: We must receive comments on this proposed AD by November 14, 
2005.

ADDRESSES: Use one of the following addresses 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.
     Fax: (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.
    Contact Cessna Aircraft Co., P.O. Box 7706, Wichita, Kansas 67277, 
for the service information identified in this proposed AD.

FOR FURTHER INFORMATION CONTACT: Robert D. Adamson, Aerospace Engineer, 
Systems and Propulsion Branch, ACE-116W, FAA, Wichita Aircraft 
Certification Office, 1801 Airport Road, Room 100, Mid-Continent 
Airport, Wichita, Kansas 67209; telephone (316) 946-4145; fax (316) 
946-4107.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to submit any relevant written data, views, or 
arguments regarding this proposed AD. Include the docket number ``FAA-
2005-22558; Directorate Identifier 2005-NM-107-AD'' at the beginning of 
your comments. We specifically invite comments on the overall 
regulatory, economic, environmental, and energy aspects of the proposed 
AD. We will consider all comments received by the closing date and may 
amend the proposed AD in light of those 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 AD. Using the search function of 
that web site, anyone can find and read the comments in 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.). You may review 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.

Examining the Docket

    You may examine the AD docket on the Internet at http://
dms.dot.gov, or in person at the Docket Management Facility office 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The Docket Management Facility office (telephone (800) 647-
5227) is located on the plaza level of the Nassif Building at the DOT 
street address stated in the ADDRESSES section. Comments will be 
available in the AD docket shortly after the Docket Management System 
receives them.

Discussion

    We have received a report indicating that the auxiliary power unit 
(APU) fire extinguishing system was mis-wired on some Cessna Model 750 
airplanes. Although the main engine fire extinguishing system on all 
Cessna Model 750 airplanes is wired correctly, further investigation 
revealed that the fire extinguishing systems on the main engines of 
Cessna Model 500, 550, S550, 560 airplanes, and on the main engines and 
APUs of Cessna Model 560XL airplanes may not be wired correctly. 
Therefore, all of these models may be subject to the same or similar 
unsafe condition found on the Cessna Model 750 APU installation. The 
engine and APU fire extinguishing bottles on these airplane models have 
positive and negative terminal studs that are the same size, so it is 
possible to cross-connect the wiring of the positive and negative 
leads. If the wiring is cross-connected and the fire extinguishing 
bottles are activated, the circuit breaker may trip due to the direct 
ground on the positive lead, and no fire extinguishing agent would be 
expelled. In addition, with the exception of the Model 750 APU 
installation, the tripped circuit breaker removes power from the fuel 
and hydraulic firewall shutoff valves, which are powered closed from a 
normally open state, and from the associated cockpit indications. As a 
result, flammable fluids could continue to be supplied to the area 
during a fire. It should be noted that the APU

[[Page 57214]]

installation on the Cessna Model 750 airplanes has a solenoid valve 
that is powered open from the normally closed state and would close to 
shut off fuel with the disruption of power. The circuit breaker that 
provides power to the extinguishing bottle differs from the circuit 
breaker that controls the shutoff valve that is powered on. Finally, 
the flightcrew would know that the fire had not been extinguished 
because the engine fire annunciator would stay illuminated, and the 
annunciators for the firewall shutoff valve may not illuminate if the 
valve does not close. Thus, the flightcrew would not know why the fire 
had not been extinguished. These conditions, if not corrected, could 
result in an unextinguished fire in the nacelle or APU.

Relevant Service Information

    We have reviewed the Cessna service bulletins in the table below.

                                            Cessna Service Bulletins
----------------------------------------------------------------------------------------------------------------
   For Cessna airplane model         Service bulletin            Revision                      Date
----------------------------------------------------------------------------------------------------------------
500............................  500-26-02..............  Original..............  April 1, 2005.
550............................  550-26-05..............  Original..............  April 1, 2005.
S550...........................  S550-26-02.............  Original..............  April 1, 2005.
560............................  560-26-01..............  Original..............  April 1, 2005.
560XL..........................  560XL-26-02............  1.....................  December 22, 2004.
750............................  750-26-05..............  Original..............  November 24, 2004.
----------------------------------------------------------------------------------------------------------------

    The service bulletins describe procedures for installing 
identification sleeves on the wires for the positive and negative 
terminal studs of the engine and/or APU fire extinguishing bottles; re-
connecting the wires to the correct studs; testing the connection; and, 
for all but the Cessna Model 750 airplanes, re-connecting the wires if 
necessary until the connection tests correctly. For Cessna Model 500, 
550, S550, and 560 airplanes, these actions are done for the engine 
fire extinguishing bottles only. For Cessna Model 750 airplanes, these 
actions are done for the APU fire extinguishing bottle only. For Cessna 
Model 560XL airplanes, this action is done for both the engine and the 
APU fire extinguishing bottles. The service bulletins also specify that 
operators should send a maintenance transaction report to the 
manufacturer. Accomplishing the actions specified in the service 
information is intended to adequately address the unsafe condition.

FAA's Determination and Requirements of the Proposed AD

    We have evaluated all pertinent information and identified an 
unsafe condition that is likely to exist or develop on other airplanes 
of this same type design. For this reason, we are proposing this AD, 
which would require accomplishing the actions specified in the service 
information described previously, except as discussed under 
``Differences Between the Proposed AD and the Service Bulletins.''

Differences Between the Proposed AD and the Service Bulletins

    Operators should note that, although the Accomplishment 
Instructions of the referenced service bulletins describe procedures 
for submitting a maintenance transaction report to the manufacturer, 
this proposed AD would not require that action. We do not need this 
information from operators.

Clarification of Service Bulletin 750-26-05

    Although Cessna Service Bulletin 750-26-05 does not specify 
procedures for re-connecting the wires if necessary until the 
connection tests correctly, that action is implied in the service 
bulletin and would be required in this proposed AD.

Costs of Compliance

    There are about 2,801 airplanes of the affected design in the 
worldwide fleet. The following table provides the estimated costs for 
U.S. operators to comply with this proposed AD.

                                                                     Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                          Number of U.S.-
             Modification for Cessna model--                Work hours     Average labor       Parts         Cost per       registered      Fleet cost
                                                                           rate per hour                     airplane        airplanes
--------------------------------------------------------------------------------------------------------------------------------------------------------
500, 550, S550, and 560 airplanes.......................               3             $65             $50            $245           1,827        $447,615
560XL airplanes.........................................               4              65             100             360             331         119,160
750 airplanes...........................................               2              65              25             155             211          32,705
--------------------------------------------------------------------------------------------------------------------------------------------------------

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 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.
    For the reasons discussed above, I certify that the proposed 
regulation:

[[Page 57215]]

    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 regulatory evaluation of the estimated costs to 
comply with this proposed AD and placed it in the AD docket. See the 
ADDRESSES section for a location to examine the regulatory evaluation.

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 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.


Sec.  39.13  [Amended]

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

Cessna Aircraft Company: Docket No. FAA-2005-22558; Directorate 
Identifier 2005-NM-107-AD.

Comments Due Date

    (a) The FAA must receive comments on this AD action by November 
14, 2005.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Cessna Model 500, 550, S550, 560, 560XL, 
and 750 airplanes, certificated in any category; as identified in 
the service bulletins in Table 1 of this AD.

                                       Table 1.--Cessna Service Bulletins
----------------------------------------------------------------------------------------------------------------
                                                                                                 Cessna model
        Service bulletin                  Revision                        Date                   (airplanes)
----------------------------------------------------------------------------------------------------------------
500-26-02.......................  Original................  April 1, 2005..................  500
550-26-05.......................  Original................  April 1, 2005..................  550
S550-26-02......................  Original................  April 1, 2005..................  S550
560-26-01.......................  Original................  April 1, 2005..................  560
560XL-26-02.....................  1.......................  December 22, 2004..............  560XL
750-26-05.......................  Original................  November 24, 2004..............  750
----------------------------------------------------------------------------------------------------------------

Unsafe Condition

    (d) This AD results from a report of mis-wired fire 
extinguishing bottles. We are issuing this AD to ensure that the 
fire extinguishing bottles are activated in the event of an engine 
or auxiliary power unit (APU) fire, and that flammable fluids are 
not supplied during a fire, which could result in an unextinguished 
fire in the nacelle or APU.

Compliance

    (e) You are responsible for having the actions required by this 
AD performed within the compliance times specified, unless the 
actions have already been done.

Installation

    (f) Within 100 flight hours or 60 days after the effective date 
of this AD, whichever occurs first: Install identification sleeves 
on the wires for the positive and negative terminal studs of the 
applicable fire extinguishing bottles identified in paragraphs 
(f)(1), (f)(2), and (f)(3) of this AD; re-connect the wires to the 
correct studs; test the connection; and re-connect the wires again 
as applicable until the connection tests correctly. Do all actions 
in accordance with the Accomplishment Instructions of the applicable 
service bulletin in Table 1 of this AD.
    (1) For Cessna Model 500, 550, S550, and 560 airplanes: The 
engine fire extinguishing bottles.
    (2) For Cessna Model 560XL airplanes: The engine and the APU 
fire extinguishing bottles.
    (3) For Cessna Model 750 airplanes: The APU fire extinguishing 
bottle.

No Reporting Requirement

    (g) Although the Accomplishment Instructions of the service 
bulletins identified in Table 1 of this AD describe procedures for 
submitting a maintenance transaction report to the manufacturer, 
this AD does not require that action.

Actions Accomplished in Accordance With Earlier Revision of Service 
Bulletin

    (h) Actions done before the effective date of this AD in 
accordance with the Accomplishment Instructions of Cessna Service 
Bulletin 560XL-26-02, dated November 22, 2004, are acceptable for 
compliance with the corresponding action in this AD.

Parts Installation

    (i) After the effective date of this AD, no person may install 
on any airplane a fire extinguishing bottle unless identification 
sleeves on the wires for the positive and negative terminal studs 
have been installed in accordance with paragraph (f) of this AD.

Alternative Methods of Compliance (AMOCs)

    (j)(1) The Manager, Wichita Aircraft Certification Office (ACO), 
FAA, has the authority to approve AMOCs for this AD, if requested in 
accordance with the procedures found in 14 CFR 39.19.
    (2) Before using any AMOC approved in accordance with Sec.  
39.19 on any airplane to which the AMOC applies, notify the 
appropriate principal inspector in the FAA Flight Standards 
Certificate Holding District Office.

    Issued in Renton, Washington, on September 21, 2005.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 05-19568 Filed 9-29-05; 8:45 am]
BILLING CODE 4910-13-P