[Federal Register: October 27, 2005 (Volume 70, Number 207)]
[Proposed Rules]
[Page 61914-61916]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr27oc05-8]
========================================================================
Proposed Rules
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains notices to the public of
the proposed issuance of rules and regulations. The purpose of these
notices is to give interested persons an opportunity to participate in
the rule making prior to the adoption of the final rules.
========================================================================
[[Page 61914]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2005-22749; Directorate Identifier 2005-NM-188-AD]
RIN 2120-AA64
Airworthiness Directives; Raytheon Model Hawker 800XP 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 Raytheon Model Hawker 800XP airplanes. This proposed AD
would require inspecting to determine if the correct fuse is installed
on the hydraulic over-temperature switch on panel ZK in the rear
equipment bay, and replacing the existing fuse if necessary. This
proposed AD results from a report of the installation of an incorrect
fuse on the over-temperature switch on panel ZK in the rear equipment
bay during airplane maintenance. We are proposing this AD to prevent a
short circuit in the fuse and consequent heat damage to associated
wiring and surrounding equipment, which could result in smoke or fire
on the airplane.
DATES: We must receive comments on this proposed AD by December 12,
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 Raytheon Aircraft Company, Department 62, P.O. Box 85,
Wichita, Kansas, 67201-0085 for the service information identified in
this proposed AD.
FOR FURTHER INFORMATION CONTACT: Philip Petty, Aerospace Engineer,
Electrical Systems and Avionics, ACE-119W, FAA, Wichita Aircraft
Certification Office, 1801 Airport Road, room 100, Mid-Continent
Airport, Wichita, Kansas 67209; telephone (316) 946-4139; fax (316)
946-4107.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to submit any relevant written data, views, or
arguments regarding this proposed AD. Send your comments to an address
listed in the ADDRESSES section. Include the docket number ``FAA-2005-
22749; Directorate Identifier 2005-NM-188-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 of the installation of an incorrect fuse
on the over-temperature switch on panel ZK in the rear equipment bay on
Raytheon Model Hawker 800XP airplanes. The manufacturer indicated that,
during airplane maintenance, a 20-amp fuse, instead of the required 3-
amp fuse, may have inadvertently been installed on fuse F1 of the ZK
panel. This condition, if not corrected, could result in a short
circuit in the fuse and consequent heat damage to associated wiring and
surrounding equipment, which could result in smoke or fire on the
airplane.
Relevant Service Information
We have reviewed Raytheon Service Bulletin SB 24-3724, dated May
2005. The service bulletin describes procedures for inspecting to
determine if a 20-amp fuse is installed on the hydraulic over-
temperature switch on panel ZK in the rear equipment bay, and replacing
any 20-amp fuse with a 3-amp fuse. The service bulletin also recommends
reporting compliance with the service bulletin and contacting the
manufacturer if signs of damage are found on associated terminals and
wires.
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 Service Bulletin.''
Differences Between the Proposed AD and Service Bulletin
Where the service bulletin specifies contacting the manufacturer if
any sign
[[Page 61915]]
of damage is found on associated terminals and wires, this proposed AD
would require that, before further flight, you must contact the FAA for
applicable repair actions. Then, before further flight, accomplish the
applicable repair actions specified by the FAA in accordance with a
method approved by the FAA.
Although the Accomplishment Instructions of the service bulletin
describe procedures for reporting compliance with the service bulletin,
this proposed AD would not require that action.
The service bulletin refers only to an ``inspection'' to ensure
that a 20-amp fuse is not installed. We have determined that the
procedures in the service bulletin should be described as a ``general
visual inspection.'' Note 1 has been included in this proposed AD to
define this type of inspection.
Clarification of Service Bulletin Note
The Raytheon service bulletin includes a note in the Accomplishment
Instructions to inform operators to contact Raytheon ``should any
difficulty be encountered'' in accomplishing the service bulletin. We
have included Note 2 in this proposed AD to clarify that any deviation
from the instructions provided in the service bulletin must be approved
as an alternative method of compliance under paragraph (g) of this
proposed AD.
Costs of Compliance
There are about 138 airplanes of the affected design in the
worldwide fleet. This proposed AD would affect about 110 airplanes of
U.S. registry. The proposed actions would take about 2 work hours per
airplane, at an average labor rate of $65 per work hour. Required parts
cost is negligible. Based on these figures, the estimated cost of the
proposed AD for U.S. operators is $14,300, or $130 per airplane.
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 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):
Raytheon Aircraft Company: Docket No. FAA-2005-22749; Directorate
Identifier 2005-NM-188-AD.
Comments Due Date
(a) The FAA must receive comments on this AD action by December
12, 2005.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Raytheon Model Hawker 800XP airplanes,
certificated in any category, serial numbers 258541, 258556, and
258567 through 258713 inclusive.
Unsafe Condition
(d) This AD results from a report of the installation of an
incorrect fuse on the over-temperature switch on panel ZK in the
rear equipment bay during airplane maintenance. We are issuing this
AD to prevent a short circuit in the fuse and consequent heat damage
to associated wiring and surrounding equipment, which could result
in smoke or fire on 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.
Inspect and Replace if Necessary
(f) Within 50 flight hours or 30 days after the effective date
of this AD, whichever is first: Do a general visual inspection to
determine if a 20-amp fuse is installed on the hydraulic over-
temperature switch on panel ZK in the rear equipment bay in
accordance with the Accomplishment Instructions of Raytheon Service
Bulletin SB 24-3724, dated May 2005. If a 20-amp fuse is installed,
before further flight, replace with a 3-amp fuse in accordance with
the Accomplishment Instructions of the service bulletin.
Note 1: For the purposes of this AD, a general visual inspection
is: ``A visual examination of an interior or exterior area,
installation, or assembly to detect obvious damage, failure, or
irregularity. This level of inspection is made from within touching
distance unless otherwise specified. A mirror may be necessary to
enhance visual access to all exposed surfaces in the inspection
area. This level of inspection is made under normally available
lighting conditions such as daylight, hangar lighting, flashlight,
or droplight and may require removal or opening of access panels or
doors. Stands, ladders, or platforms may be required to gain
proximity to the area being checked.''
Note 2: A note in the Accomplishment Instructions of the
Raytheon service bulletin instructs operators to contact Raytheon if
any difficulty is encountered in accomplishing the service bulletin.
However, any deviation from the instructions provided in the service
bulletin must be approved as an alternative method of compliance
(AMOC) under paragraph (g) of this AD.
Repair Approval
(g) Where the Raytheon Service Bulletin SB 24-3724, dated May
2005, says to contact the manufacturer if any sign of damage is
found on associated terminals and wires: Before further flight,
contact the Manager, Wichita Aircraft Certification Office, FAA, for
applicable repair actions; then, before further flight, accomplish
the applicable repair actions specified according to a method
approved by the Manager, Wichita Aircraft Certification Office.
[[Page 61916]]
Alternative Methods of Compliance (AMOCs)
(h)(1) The Manager, Wichita Aircraft Certification Office, 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 October 18, 2005.
Kevin M. Mullin,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-21438 Filed 10-26-05; 8:45 am]
BILLING CODE 4910-13-P