FR Doc 05-21309

[Federal Register: October 25, 2005 (Volume 70, Number 205)]
[Proposed Rules]
[Page 61580-61583]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr25oc05-12]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2005-20970; Directorate Identifier 2004-NM-53-AD]
RIN 2120-AA64

Airworthiness Directives; Cessna Model 500, 501, 550, S550, 551,
and 560 Airplanes

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

ACTION: Supplemental notice of proposed rulemaking (NPRM); reopening of
comment period.

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SUMMARY: The FAA is revising an earlier proposed airworthiness
directive (AD) for certain Cessna Model 500, 501, 550, S550, 551, and
560 airplanes. The original NPRM would have required revising the
airplane flight manual (AFM) to prohibit use of the wing fuel boost
pumps for defueling under certain conditions; installing a placard;
doing other specified investigative and corrective actions as
necessary; and modifying the boost pumps. The original NPRM also would
have required the subsequent removal of the AFM revision and placard.
The original NPRM resulted from a report of a chafed electrical wiring
harness, which was arcing inside the fuel tank. This action revises the
original NPRM by identifying certain service information not identified
in the original NPRM. We are proposing this supplemental NPRM to
prevent potential fuel vapor ignition in a fuel tank, which could
result in explosion and loss of the airplane.

DATES: We must receive comments on this supplemental NPRM by November
21, 2005.

ADDRESSES: Use one of the following addresses to submit comments on
this supplemental NPRM.
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.
For service information identified in this proposed AD, contact
Cessna Aircraft Co., P.O. Box 7706, Wichita, Kansas 67277.

FOR FURTHER INFORMATION CONTACT: Bryan Easterwood, Aerospace Engineer,
Electrical Systems and Avionics Branch, ACE-119W, FAA, Wichita Aircraft
Certification Office, 1801 Airport Road, room 100, Mid-Continent
Airport, Wichita, Kansas 67209; telephone (316) 946-4132; fax (316)
946-4107.

SUPPLEMENTARY INFORMATION:

Comments Invited

We invite you to submit any relevant written data, views, or
arguments regarding this supplemental NPRM. Send your comments to an
address listed in the ADDRESSES section. Include the docket number
``Docket No. FAA-2005-20970; Directorate Identifier 2004-NM-53-AD'' at
the beginning of your comments. We specifically invite comments on the
overall regulatory, economic, environmental, and energy aspects of this
supplemental NPRM. We

[[Page 61581]]

will consider all comments received by the closing date and may amend
this supplemental NPRM in light of those comments.
We will post all comments submitted, 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 supplemental NPRM. 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 in the Nassif Building at the DOT
street address stated in ADDRESSES. Comments will be available in the
AD docket shortly after the Docket Management System receives them.

Discussion

We proposed to amend 14 CFR part 39 with a notice of proposed
rulemaking (NPRM) for an AD (the ``original NPRM'') for certain Cessna
Model 500, 501, 550, S550, 551, and 560 airplanes. The original NPRM
was published in the Federal Register on April 18, 2005 (70 FR 20083).
The original NPRM proposed to require revising the airplane flight
manual (AFM) to prohibit use of the wing fuel boost pumps for defueling
under certain conditions; installing a placard; doing other specified
investigative and corrective actions as necessary; and modifying the
boost pumps. The original NPRM also proposed to require the subsequent
removal of the AFM revision and placard.

Actions Since Original NPRM Was Issued

Since we issued the original NPRM, we received no comments on the
original NPRM or on the determination of the cost to the public.
However, we have learned that the temporary revisions (TRs) were not
identified in certain service bulletins cited in the original NPRM.
This information is provided in the table in the next section.

Relevant Service Information

We have reviewed the TRs identified in the following table.

TRs
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Cessna temporary change-- Dated-- To the--
----------------------------------------------------------------------------------------------------------------
500FM TC-R57-01.................. April 5, 2004...... Cessna Model 500 AFM.
500FM TC-R57-02.................. April 5, 2004...... Cessna Model 500 AFM.
500FM TC-R57-03.................. April 5, 2004...... Cessna Model 500 AFM.
55BFM TC-R10-07.................. March 17, 2004..... Cessna Model 550 Citation Bravo AFM.
55BFM TC-R10-08.................. March 17, 2004..... Cessna Model 550 Citation Bravo AFM.
55BFM TC-R10-09.................. March 17, 2004..... Cessna Model 550 Citation Bravo AFM.
560FM TC-R13-01.................. March 4, 2004...... Cessna Model 560 Citation V AFM.
560FM TC-R13-02.................. March 4, 2004...... Cessna Model 560 Citation V AFM.
560FM TC-R13-03.................. March 4, 2004...... Cessna Model 560 Citation V AFM.
56FMA TC-04-01................... March 4, 2004...... Cessna Model 560 Citation Ultra AFM.
56FMA TC-04-02................... March 4, 2004...... Cessna Model 560 Citation Ultra AFM.
56FMA TC-04-03................... March 4, 2004...... Cessna Model 560 Citation Ultra AFM.
56FMB TC-R03-10.................. March 12, 2004..... Cessna Model 550 AFM.
56FMB TC-R03-11.................. March 12, 2004..... Cessna Model 560 AFM.
56FMB TC-R03-12.................. March 12, 2004..... Cessna Model 560 AFM.
S55CA TC-04-01................... July 8, 2004....... Cessna Model S550 Citation S/II AFM.
S55CA TC-04-02................... July 8, 2004....... Cessna Model S550 Citation S/II AFM.
S55CA TC-04-03................... July 8, 2004....... Cessna Model S550 Citation S/II AFM.
S55FM TC-04-01................... March 4, 2004...... Cessna Model S550 Citation S/II AFM.
S55FM TC-04-02................... March 4, 2004...... Cessna Model S550 Citation S/II AFM.
S55FM TC-04-03................... March 4, 2004...... Cessna Model S550 Citation S/II AFM.
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The TRs prohibit use of the wing fuel boost pumps for defueling
under certain conditions. Accomplishing the actions specified in the
service information described in the original and supplemental NPRMs is
intended to adequately address the unsafe condition.

FAA's Determination and Proposed Requirements of the Supplemental NPRM

The changes discussed above expand the scope of the original NPRM;
therefore, we have determined that it is necessary to reopen the
comment period to provide additional opportunity for public comment on
this supplemental NPRM.

Costs of Compliance

There are about 2,397 airplanes of the affected design in the
worldwide fleet. The following table provides the estimated costs for
U.S. operators to comply with this supplemental NPRM.

Estimated Costs
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Number of
Work Average Cost per U.S.-
Applicable service bulletin hours hourly Parts airplane registered Fleet cost
labor rate airplanes
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SB500-28-12............................ 20 $65 $2,229 $3,529 444 $1,566,876

[[Page 61582]]

SBS550-28-08........................... 12 65 102 882 126 111,132
SB550-28-14............................ 8 65 1,992 2,512 469 1,178,128
SB550-28-15............................ 8 65 1,936 2,456 194 476,464
SB560-28-10............................ 12 65 1,949 2,729 428 1,168,012
SB560-28-11............................ 8 65 1,052 1,572 101 158,772
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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 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:
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 supplemental NPRM 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-2005-20970; Directorate
Identifier 2004-NM-53-AD.

Comments Due Date

(a) The FAA must receive comments on this AD action by November
21, 2005.

Affected ADs

(b) None.

Applicability

Table 1.--Applicability
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Airplane model(s) Serial Nos.
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500 and 501........................... 0001 through 0689 inclusive.
S550.................................. 0001 through 0160 inclusive.
550 and 551........................... 0002 through 0733 inclusive.
550................................... 0801 through 1075 inclusive.
560................................... 0001 through 0648 inclusive.
------------------------------------------------------------------------

Unsafe Condition

(d) This AD was prompted by a report of a chafed electrical
wiring harness, which was arcing inside the fuel tank. We are
issuing this AD to prevent potential fuel vapor ignition in a fuel
tank, which could result in explosion and loss of the airplane.

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.

Service Information

(f) The term ``service bulletin'' as used in this AD refers to
the applicable service bulletin listed in Table 2 of this AD.

Table 2.--Service Information
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Use Cessna
For Cessna model-- Having serial service Dated--
numbers-- bulletin--
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500 and 501 airplanes.................. 0001-0689 SB500-28-12 June 14, 2004.
S550 airplanes......................... 0001-0160 SBS550-28-08 May 7, 2004.
550 and 551 airplanes.................. 0002-0733 SB550-28-14 December 2, 2003.
550 airplanes.......................... 0801-1075 SB550-28-15 January 20, 2004.
560 airplanes.......................... 0001-0538 SB560-28-10 April 23, 2004.
560 airplanes.......................... 0539-0648 SB560-28-11 March 12, 2004.
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[[Page 61583]]

AFM Revision

(g) Within 25 flight hours after the effective date of this AD:
Revise the Limitations section of the applicable Cessna airplane
flight manual (AFM) to prohibit use of the wing fuel boost pumps for
defueling under certain conditions, by inserting the applicable
temporary change identified in Cessna Service Bulletin SB550-28-14,
dated December 2, 2003, or identified in Table 3 of this AD.

Table 3.--Temporary Changes
----------------------------------------------------------------------------------------------------------------
Cessna temporary change-- Dated-- To the--
----------------------------------------------------------------------------------------------------------------
500FM TC-R57-01.................. April 5, 2004...... Cessna Model 500 AFM.
500FM TC-R57-02.................. April 5, 2004...... Cessna Model 500 AFM.
500FM TC-R57-03.................. April 5, 2004...... Cessna Model 500 AFM.
55BFM TC-R10-07.................. March 17, 2004..... Cessna Model 550 Citation Bravo AFM.
55BFM TC-R10-08.................. March 17, 2004..... Cessna Model 550 Citation Bravo AFM.
55BFM TC-R10-09.................. March 17, 2004..... Cessna Model 550 Citation Bravo AFM.
560FM TC-R13-01.................. March 4, 2004...... Cessna Model 560 Citation V AFM.
560FM TC-R13-02.................. March 4, 2004...... Cessna Model 560 Citation V AFM.
560FM TC-R13-03.................. March 4, 2004...... Cessna Model 560 Citation V AFM.
56FMA TC-04-01................... March 4, 2004...... Cessna Model 560 Citation Ultra AFM.
56FMA TC-04-02................... March 4, 2004...... Cessna Model 560 Citation Ultra AFM.
56FMA TC-04-03................... March 4, 2004...... Cessna Model 560 Citation Ultra AFM.
56FMB TC-R03-10.................. March 12, 2004..... Cessna Model 560 AFM.
56FMB TC-R03-11.................. March 12, 2004..... Cessna Model 560 AFM.
56FMB TC-R03-12.................. March 12, 2004..... Cessna Model 560 AFM.
S55CA TC-04-01................... July 8, 2004....... Cessna Model S550 Citation S/II AFM.
S55CA TC-04-02................... July 8, 2004....... Cessna Model S550 Citation S/II AFM.
S55CA TC-04-03................... July 8, 2004....... Cessna Model S550 Citation S/II AFM.
S55FM TC-04-01................... March 4, 2004...... Cessna Model S550 Citation S/II AFM.
S55FM TC-04-02................... March 4, 2004...... Cessna Model S550 Citation S/II AFM.
S55FM TC-04-03................... March 4, 2004...... Cessna Model S550 Citation S/II AFM.
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Placard Installation

(h) Within 25 flight hours after the effective date of this AD:
Install a placard close to the fuel quantity gauge, in accordance
with the Accomplishment Instructions of the service bulletin. In
addition to the specifications in the service bulletin, the letters
on the placard must be at least \1/4\-inch tall.

Inspection and Modification

(i) Within 300 flight hours after the effective date of this AD:
Do the actions specified in paragraphs (i)(1) and (i)(2) of this AD
in accordance with the Accomplishment Instructions of the service
bulletin.
(1) Do a detailed inspection for chafed wiring of the wing fuel
boost pumps, and, before further flight thereafter, do all
applicable corrective and other specified actions.
(2) Modify the wing fuel boost pumps.

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.''

(j) Before further flight after the inspection and modification
required by paragraph (i) of this AD, remove the AFM temporary
change and placard required by paragraphs (g) and (h) of this AD.

Reporting Clarification

(k) Although the service bulletin specifies to submit certain
information to the manufacturer, this AD does not include that
requirement.

Alternative Methods of Compliance (AMOCs)

(l) 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.

Issued in Renton, Washington, on October 18, 2005.
Kevin M. Mullin,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-21309 Filed 10-24-05; 8:45 am]

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