[Federal Register: November 21, 2006 (Volume 71, Number 224)]
[Rules and Regulations]
[Page 67295-67297]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr21no06-1]
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Rules and Regulations
Federal Register
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[[Page 67295]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2006-26352; Directorate Identifier 2006-NM-231-AD;
Amendment 39-14830; AD 2006-24-01]
Airworthiness Directives; Cessna Model 750 Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule; request for comments.
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SUMMARY: The FAA is superseding an existing airworthiness directive
(AD) that applies to certain Cessna Model 750 airplanes. The existing
AD currently requires repetitive inspections for clearance and chafing
of an auxiliary power unit (APU) fuel tube assembly in the tail cone
area of the airplane, and corrective actions if necessary. For certain
airplanes, the existing AD also requires replacing the APU fuel line.
This new AD adds airplanes to the applicability and allows operators to
modify the APU fuel line by installing new fuel lines, fairleads, and
clamping configurations, which is an optional terminating action for
the repetitive inspections. This AD results from reports of chafed APU
fuel tubes leaking into the tail cone area due to interference between
the fuel tube assembly and elevator flight control cables, hydraulic
lines, and high-temperature bleed air couplings. We are issuing this AD
to detect and correct this interference, which could result in chafing,
fuel leaking into an area where ignition sources are present, and
possible fire in an area without fire detection or extinguishing
provisions.
DATES: This AD becomes effective December 6, 2006.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in the AD as of December 6,
2006.
On May 10, 2005 (70 FR 21139, April 25, 2005), the Director of the
Federal Register approved the incorporation by reference of Cessna
Alert Service Letter ASL750-49-09, Revision 2, dated March 10, 2005;
and Cessna Service Bulletin SB750-49-05, Revision 1, dated January 17,
2000.
We must receive any comments on this AD by January 22, 2007.
ADDRESSES: Use one of the following addresses to submit comments on
this 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 service information identified in this AD.
FOR FURTHER INFORMATION CONTACT: Robert D. Adamson, Aerospace Engineer,
Mechanical 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:
Discussion
On April 13, 2005, we issued AD 2005-09-01, amendment 39-14069 (70
FR 21139, April 25, 2005). That AD applies to certain Cessna Model 750
airplanes. That AD requires repetitive inspections for clearance and
chafing of an auxiliary power unit (APU) fuel tube assembly in the tail
cone area of the airplane, and corrective actions if necessary. For
certain airplanes, that AD also requires replacing the APU fuel line.
That AD resulted from reports of chafed APU fuel tubes leaking into the
tail cone area due to interference between the fuel tube assembly and
elevator flight control cables, hydraulic lines, and high-temperature
bleed air couplings. The actions specified in that AD are intended to
detect and correct this interference, which could result in chafing,
fuel leaking into an area where ignition sources are present, and
possible fire in an area without fire detection or extinguishing
provisions.
Actions Since AD Was Issued
Since we issued that AD, the manufacturer has reported that
additional airplanes are subject to the existing requirements in AD
2005-09-01.
The preamble to AD 2005-09-01 specified that we considered the
requirements ``interim action'' and that the manufacturer was
developing a modification to address the unsafe condition. The
manufacturer now has developed a modification.
Relevant Service Information
We have reviewed Cessna Service Bulletin SB750-49-12, Revision 1,
dated August 3, 2006. The service bulletin describes procedures for
modifying the APU fuel line by installing new fuel lines, fairleads,
and clamping configurations.
FAA's Determination and Requirements of This AD
The unsafe condition described previously is likely to exist or
develop on other airplanes of the same type design. For this reason, we
are issuing this AD to supersede AD 2005-09-01. This new AD retains the
requirements of the existing AD. This AD also adds airplanes to the
applicability and allows operators to modify the APU fuel line by
installing new fuel lines, fairleads, and clamping configurations,
which is an optional terminating action for the repetitive inspections
in the existing AD.
No Maintenance Transaction Report
Although Cessna Service Bulletin SB750-49-12, Revision 1, specifies
to submit a maintenance transaction report to the manufacturer, this AD
does not include that requirement.
[[Page 67296]]
Interim Action
We consider this AD interim action. We are currently considering
requiring the modification, which would constitute terminating action
for the repetitive inspections required by this AD. However, the
planned compliance time for the installation of the modification would
allow enough time to provide notice and opportunity for prior public
comment on the merits of the modification.
Clarification of Alternative Method of Compliance (AMOC) Paragraph
We have revised this action to clarify the appropriate procedure
for notifying the principal inspector before using any approved AMOC on
any airplane to which the AMOC applies.
FAA's Determination of the Effective Date
An unsafe condition exists that requires the immediate adoption of
this AD; therefore, providing notice and opportunity for public comment
before the AD is issued is impracticable, and good cause exists to make
this AD effective in less than 30 days.
Comments Invited
This AD is a final rule that involves requirements that affect
flight safety and was not preceded by notice and an opportunity for
public comment; however, we invite you to submit any relevant written
data, views, or arguments regarding this AD. Send your comments to an
address listed in the ADDRESSES section. Include ``Docket No. FAA-2006-
26352; Directorate Identifier 2006-NM-231-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of the AD that might
suggest a need to modify it.
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 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 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.
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.
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 the 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); 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 part 39 of the Federal Aviation Regulations (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
removing amendment 39-14069 (70 FR 21139, April 25, 2005) and adding
the following new airworthiness directive (AD):
2006-24-01 Cessna Aircraft Company: Docket No. FAA-2006-26352;
Directorate Identifier 2006-NM-231-AD; Amendment 39-14830.
Effective Date
(a) This AD becomes effective December 6, 2006.
Affected ADs
(b) This AD supersedes AD 2005-09-01.
Applicability
(c) This AD applies to Cessna Model 750 airplanes, certificated
in any category, serial numbers -0001 through -0256 inclusive.
Unsafe Condition
(d) This AD results from reports of chafed auxiliary power unit
(APU) fuel tubes leaking into the tail cone area due to interference
between the fuel tube assembly and elevator flight control cables,
hydraulic lines, and high-temperature bleed air couplings. We are
issuing this AD to detect and correct this interference, which could
result in chafing, fuel leaking into an area where ignition sources
are present, and possible fire in an area without fire detection or
extinguishing provisions.
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.
Restatement of the Requirements of AD 2005-09-01
Inspections
(f) For airplanes with a serial number -0001 through -0240
inclusive: Within 25 flight hours or 48 days, whichever occurs
first, after May 10, 2005 (the effective date of AD 2005-09-01), do
a detailed inspection to verify the clearance and detect chafing of
one of the APU fuel tube assemblies in the tail
[[Page 67297]]
cone area of the airplane due to interference between the APU fuel
tube and elevator flight control cables, hydraulic lines, and high
temperature bleed air couplings. Do the actions in accordance with
the Accomplishment Instructions of Cessna Alert Service Letter (ASL)
ASL750-49-09, Revision 2, dated March 10, 2005. Do applicable
corrective actions before further flight in accordance with the ASL.
Repeat the inspection thereafter at the earlier of the times
specified in paragraphs (f)(1) and (f)(2) of this AD.
(1) At intervals not to exceed 250 flight hours or 3 months,
whichever occurs first.
(2) Before further flight after access to the inspection area
for any other inspection or maintenance.
Note 1: For the purposes of this AD, a detailed inspection is:
``An intensive examination of a specific item, installation, or
assembly to detect damage, failure, or irregularity. Available
lighting is normally supplemented with a direct source of good
lighting at an intensity deemed appropriate. Inspection aids such as
mirror, magnifying lenses, etc., may be necessary. Surface cleaning
and elaborate procedures may be required.''
APU Fuel Line Replacement
(g) For airplanes having serial numbers -0001 through -0031
inclusive and -0033 through -0107 inclusive: Before the first
inspection required by paragraph (f) of this AD, replace the APU
fuel tube in the tail cone area of the airplane, in accordance with
Cessna Service Bulletin SB750-49-05, Revision 1, dated January 17,
2000. The replacement APU fuel tube must be a new APU fuel tube
having part number 6756605-23.
Report
(h) For airplanes with serial numbers -0001 through -0240
inclusive: At the applicable time specified in paragraph (h)(1) or
(h)(2) of this AD, report the results (both positive and negative
findings) of the initial inspection required by paragraph (f) of
this AD, in accordance with Cessna ASL ASL750-49-09, Revision 2,
dated March 10, 2005. Information collection requirements contained
in this AD have been approved by the Office of Management and Budget
(OMB) under the provisions of the Paperwork Reduction Act of 1980
(44 U.S.C. 3501 et seq.) and have been assigned OMB Control Number
2120-0056.
(1) If the inspection is done after the May 10, 2005: Submit the
report within 30 days after the inspection.
(2) If the inspection was done before May 10, 2005: Submit the
report within 30 days after May 10, 2005.
New Requirements of This AD
Inspections for Additional Airplanes
(i) For airplanes with serial numbers -0241 through -0256
inclusive, within 25 flight hours or 48 days, whichever occurs
first, after the effective date of this AD: Do the inspection
required by paragraph (f) of this AD. Do applicable corrective
actions before further flight in accordance with the Accomplishment
Instructions of Cessna Alert Service Letter (ASL) ASL750-49-09,
Revision 2, dated March 10, 2005. Repeat the inspection thereafter
at the earlier of the times specified in paragraphs (f)(1) and
(f)(2) of this AD.
Report for Additional Airplanes
(j) For airplanes with serial numbers -0241 through -0256
inclusive: At the applicable time specified in paragraph (j)(1) or
(j)(2) of this AD, do the action required by paragraph (h) of this
AD.
(1) If the inspection required by paragraph (i) of this AD is
done on or after the effective date of this AD: Submit the report
within 30 days after the inspection.
(2) If the inspection required by paragraph (i) of this AD was
done before the effective date of this AD: Submit the report within
30 days after the effective date of this AD.
Optional Terminating Action
(k) Modifying the APU fuel line by installing new fuel lines,
fairleads, and clamping configurations, in accordance with the
Accomplishment Instructions of Cessna Service Bulletin SB750-49-12,
Revision 1, dated August 3, 2006, terminates the repetitive
inspection requirements of paragraphs (f) and (i) of this AD.
No Maintenance Transaction Report
(l) Although Cessna Service Bulletin SB750-49-12, Revision 1,
specifies to submit a maintenance transaction report to the
manufacturer, this AD does not require that action.
Alternative Methods of Compliance (AMOCs)
(m)(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
(n) You must use Cessna Alert Service Letter ASL750-49-09,
Revision 2, dated March 10, 2005; Cessna Service Bulletin SB750-49-
05, Revision 1, dated January 17, 2000; and Cessna Service Bulletin
SB750-49-12, Revision 1, dated August 3, 2006; as applicable; to
perform the actions that are required by this AD, unless the AD
specifies otherwise.
(1) The Director of the Federal Register approved the
incorporation by reference of Cessna Service Bulletin SB750-49-12,
dated August 3, 2006, in accordance with 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) On May 10, 2005 (70 FR 21139, April 25, 2005), the Director
of the Federal Register approved the incorporation by reference of
Cessna Alert Service Letter ASL750-49-09, Revision 2, dated March
10, 2005; and Cessna Service Bulletin SB750-49-05, Revision 1, dated
January 17, 2000.
(3) 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
.
Issued in Renton, Washington, on November 3, 2006.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E6-19439 Filed 11-20-06; 8:45 am]
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