[Federal Register: February 17, 2006 (Volume 71, Number 33)]
[Rules and Regulations]
[Page 8443-8446]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr17fe06-5]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2005-22558; Directorate Identifier 2005-NM-107-AD;
Amendment 39-14491; AD 2006-04-10]
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: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Cessna Model 500, 550, S550, 560, 560XL, and 750 airplanes.
This AD requires 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 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 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: This AD becomes effective March 24, 2006.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of March 24,
2006.
ADDRESSES: You may examine the AD docket on the Internet at http://dms.dot.gov
or in person at the Docket Management Facility, U.S.
Department of Transportation, 400 Seventh Street, SW., Nassif Building,
room PL-401, Washington, DC.
Contact Cessna Aircraft Co., P.O. Box 7706, Wichita, Kansas 67277,
for service information identified in this 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:
Examining the Docket
You may examine the airworthiness directive (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 street address stated in the ADDRESSES section.
Discussion
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to include an AD that would apply to certain Cessna Model
500, 550, S550, 560, 560XL, and 750 airplanes. That NPRM was published
in the Federal Register on September 30, 2005 (70 FR 57213). That NPRM
proposed to 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.
Comments
We provided the public the opportunity to participate in the
development of this AD. We have considered the comments received.
Request To Use Parts Other Than Factory Kit
The commenter sees the need for the proposed AD, but does not like
the fact that it is tied to a factory service bulletin. The commenter
states that the kits specified in the service bulletin that are
necessary to do the actions in the NPRM are often out of stock at the
manufacturer. The commenter further points out that the actions in the
NPRM can be accomplished without waiting for the kit because the
actions can be done using standard items and practices in the field. In
addition, the commenter states that the kits are much more costly than
the estimate provided in the NPRM.
We infer that the commenter is requesting confirmation that the
factory-provided kits are available for all affected airplanes to
accomplish the required actions, and that the kits will not be more
costly than stated in the NPRM. The manufacturer has assured us that
the kits are available and that the parts costs cited in the NPRM are
correct. The manufacturer also noted that there is no cost for kits if
the affected airplane is within its five-year warranty period. If the
commenter has difficulty getting a kit or kits, or wishes to use
standard items and practices in the field, the commenter can apply for
an alternative method of compliance in accordance with the procedures
in paragraph (j) of this AD.
We have not changed the AD in this regard.
Request To Correct Incorrect Statement Regarding Shutoff Valves
Another commenter supports the need for the proposed AD, but states
that the ``Discussion'' section incorrectly indicates that the mis-
wiring will cause the shutoff valves for the main engine fuel and
hydraulic firewall to open. The commenter suggests that we delete this
statement. The commenter explains that the valves are motor-operated
and remain in the last position when power is absent. They
[[Page 8444]]
close in less than one second when the illuminated engine fire light/
switch is pressed, which also arms the circuits for the fire
extinguishing bottles, but does not apply power to the fire
extinguishing bottles. The commenter states that if the fire
extinguishing bottles are mis-wired, the valves would stay closed upon
subsequent activation of the fire extinguishing bottle discharge switch
and tripping of the circuit breaker. The commenter further states that
the valve-closed annunciation would go off when the circuit breaker
tripped.
We disagree with the commenter. The tripped circuit breaker removes
power from the fuel and hydraulic shutoff valves and the associated
cockpit annunciations, except for the Model 750 APU installation. The
fuel and hydraulic shutoff valves are powered closed from a normally
open state. Cessna has tested the fuel and hydraulic shutoff valves and
found that these valves may not close before the circuit breaker trips
and removes power from the valve. Testing also showed that the time
required before the circuit breaker trips varies from airplane to
airplane. When power is removed, the valves could be in any position
ranging from fully opened to fully closed. Therefore, if there is a
fire, flammable fluids could continue to be supplied to the fire. As a
result of this time variation, we included this condition in the
Discussion section of the proposed AD. In addition, the Discussion
section of the preamble does not reappear in the final rule. We have
not changed the AD in this regard.
Conclusion
We have carefully reviewed the available data, including the
comments received, and determined that air safety and the public
interest require adopting the AD as proposed.
Costs of Compliance
There are about 2,801 airplanes of the affected design in the
worldwide fleet, including about 2,369 airplanes of the affected design
of U.S. Registry. The following table provides the estimated costs for
U.S. operators to comply with this AD.
Estimated Costs
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Number of U.S.-
Modification for Cessna Model-- Work hours Average labor Parts Cost per registered Fleet cost
rate per hour airplane airplanes
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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
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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 have determined that this AD will not have federalism
implications under Executive Order 13132. This AD will not have a
substantial direct effect on the States, on the relationship between
the national government and the States, or on the distribution of power
and responsibilities among the various levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866;
(2) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979); 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 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, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the FAA amends 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 Federal Aviation Administration (FAA) amends Sec. 39.13 by
adding the following new airworthiness directive (AD):
2006-04-10 Cessna Aircraft Company: Amendment 39-14491. Docket No.
FAA-2005-22558; Directorate Identifier 2005-NM-107-AD.
Effective Date
(a) This AD becomes effective March 24, 2006.
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
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Cessna service bulletin Revision Date Cessna model
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SB500-26-02....................... Original............. April 1, 2005........ 500 airplanes.
SB550-26-05....................... Original............. April 1, 2005........ 550 airplanes.
[[Page 8445]]
SB560-26-01....................... Original............. April 1, 2005........ 560 airplanes.
SB560XL-26-02..................... 1.................... December 22, 2004.... 560XL airplanes.
SB750-26-05....................... Original............. November 24, 2004.... 750 airplanes.
SBS550-26-02...................... Original............. April 1, 2005........ S550 airplanes.
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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 identified 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 SB560XL-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.
Material Incorporated by Reference
(k) You must use the service information listed in Table 2 of
this AD to perform the actions that are required by this AD, unless
the AD specifies otherwise. The Director of the Federal Register
approved the incorporation by reference of these documents in
accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Cessna
Aircraft Co., P.O. Box 7706, Wichita, Kansas 67277, for a copy of
this service information. You may review copies at the Docket
Management Facility, U.S. Department of Transportation, 400 Seventh
Street SW., room PL-401, Nassif Building, Washington, DC; on the
Internet at http://dms.dot.gov; or at the National Archives and
Records Administration (NARA). For information on the availability
of this material at the NARA, call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html
.
Table 2.--Material Incorporated by Reference
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Cessna service bulletin Revision level Date
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SB500-26-02, including Service Bulletin Original..................... April 1, 2005.
Supplemental Data.
SB550-26-05, including Service Bulletin Original..................... April 1, 2005.
Supplemental Data.
SB560-26-01, including Service Bulletin Original..................... April 1, 2005.
Supplemental Data.
SB560XL-26-02, including Service Bulletin 1............................ December 22, 2004.
Supplemental Data, dated November 22,
2004, and excluding Attachment.
SB750-26-05, including Service Bulletin Original..................... November 24, 2004.
Supplemental Data.
SBS550-26-02, including Service Bulletin Original..................... April 1, 2005.
Supplemental Data.
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[[Page 8446]]
Issued in Renton, Washington, on February 7, 2006.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 06-1407 Filed 2-16-06; 8:45 am]
BILLING CODE 4910-13-P