[Federal Register: October 7, 2004 (Volume 69, Number 194)]
[Proposed Rules]
[Page 60104-60106]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr07oc04-14]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA 2004-19119; Directorate Identifier 2004-CE-26-AD]
RIN 2120-AA64
Airworthiness Directives; Raytheon Aircraft Company, Model 390,
Premier 1 Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for certain Raytheon Aircraft Company, Model 390, Premier 1 airplanes.
This proposed AD would require you to inspect the routing and security
of the left and right main landing gear (MLG) squat switch wire harness
installations for damage, repair any damage or replace components, and
reinstall the squat switch wire harness. This proposed AD results from
reports of damage to the left and/or right MLG wire harness assemblies,
which resulted in various system failures/anomalies due to erroneous
air/ground status signals. We are issuing this proposed AD to prevent
damage to the wire harnesses, which could result in loss of lift dump,
loss of pressurization, loss of transponder responses to
interrogations, and failure of other systems utilizing air/ground
status signals. This failure could lead to loss of control of the
airplane.
DATES: We must receive any comments on this proposed AD by November 16,
2004.
ADDRESSES: Use one of the following 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 20590-001.
Fax: 1-202-493-2251.
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.
To get the service information identified in this proposed AD,
contact Raytheon Aircraft Company, PO Box 85, Wichita, Kansas 67201-
0085; telephone: (800) 625-7043.
To view the comments to this proposed AD, go to http://dms.dot.gov.
The docket number is FAA 2004-19119.
FOR FURTHER INFORMATION CONTACT: Philip Petty, Aerospace Engineer, ACE-
119W, Wichita Aircraft Certification Office, 1801 Airport Road, Room
100, Wichita, Kansas 67209; telephone: (316) 946-4139; facsimile: (316)
946-4107.
SUPPLEMENTARY INFORMATION:
[[Page 60105]]
Comments Invited
How do I comment on this proposed AD? We invite you to submit any
written relevant data, views, or arguments regarding this proposal.
Send your comments to an address listed under ADDRESSES. Include the
docket number, ``FAA 2004-19119; Directorate Identifier 2004-CE-26-AD''
at the beginning of your 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
rulemaking. Using the search function of our docket Web site, anyone
can find and read the comments received into 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.).
This is docket number FAA 2004-19119. 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.
Are there any specific portions of this proposed AD I should pay
attention to? We specifically invite comments on the overall
regulatory, economic, environmental, and energy aspects of this
proposed AD. If you contact us through a nonwritten communication and
that contact relates to a substantive part of this proposed AD, we will
summarize the contact and place the summary in the docket. We will
consider all comments received by the closing date and may amend this
proposed AD in light of those comments and contacts.
Docket Information
Where can I go to view the docket information? You may view the AD
docket that contains the proposal, any comments received, and any final
disposition in person at the DMS Docket Offices between 9 a.m. and 5
p.m. (eastern standard time), Monday through Friday, except Federal
holidays. The Docket Office (telephone 1-800-647-5227) is located on
the plaza level of the Department of Transportation NASSIF Building at
the street address stated in ADDRESSES. You may also view the AD docket
on the Internet at http://dms.dot.gov. The comments will be available
in the AD docket shortly after the DMS receives them.
Discussion
What events have caused this proposed AD? FAA received reports of
damage to the left and/or right MLG wire harness assemblies on Raytheon
Model 390 airplanes. This resulted in various system failures/anomalies
due to erroneous air/ground status signals. Improper installation of
Kit 390-8103-0001 may have resulted in the damage to the squat switch
wire harness assemblies during normal extension and retraction
operations. A damaged wire harness and/or squat switch installation may
affect multiple systems on the airplane.
What is the potential impact if FAA took no action? Damage to the
wire harnesses could result in loss of lift dump, loss of
pressurization, loss of transponder responses to interrogations, and
failure of other systems utilizing air/ground status signals. This
failure could lead to loss of control of the airplane.
Is there service information that applies to this subject? Raytheon
Aircraft Company has issued Service Bulletin SB 32-3678, dated June
2004.
What are the provisions of this service information? The service
bulletin includes procedures for:
--Inspecting the squat switch bracket for corrosion or cracking;
--replacing the squat switch bracket, if damaged;
--inspecting the MLG wiring harness; and
--relocating the MLG wire harness tie straps and the M85052/1-8
mounting clamp.
FAA's Determination and Requirements of This Proposed AD
What has FAA decided? We have evaluated all pertinent information
and identified an unsafe condition that is likely to exist or develop
on other products of this same type design. For this reason, we are
proposing AD action.
What would this proposed AD require? This proposed AD would require
you to incorporate the actions in the previously-referenced service
bulletin.
How does the revision to 14 CFR part 39 affect this proposed AD? On
July 10, 2002, we published a new version of 14 CFR part 39 (67 FR
47997, July 22, 2002), which governs FAA's AD system. This regulation
now includes material that relates to altered products, special flight
permits, and alternative methods of compliance. This material
previously was included in each individual AD. Since this material is
included in 14 CFR part 39, we will not include it in future AD
actions.
Costs of Compliance
How many airplanes would this proposed AD impact? We estimate that
this proposed AD affects 98 airplanes in the U.S. registry.
What would be the cost impact of this proposed AD on owners/
operators of the affected airplanes? Raytheon Aircraft Company will
provide warranty credit as specified in the service information.
Regulatory Findings
Would this proposed AD impact various entities? 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.
Would this proposed AD involve a significant rule or regulatory
action? For the reasons discussed above, I certify that this proposed
AD:
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 summary of the costs to comply with this proposed AD
and placed it in the AD Docket. You may get a copy of this summary by
sending a request to us at the address listed under ADDRESSES. Include
``AD Docket FAA 2004-19119; Directorate Identifier 2004-CE-26-AD'' in
your request.
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 Federal Aviation Administration 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 FAA amends Sec. 39.13 by adding the following new
airworthiness directive (AD):
Raytheon Aircraft Company: Docket No. FAA 2004-19119, Directorate
Identifier 2004-CE-26-AD.
[[Page 60106]]
When is the Last Date I can Submit Comments on this Proposed AD?
(a) We must receive comments on this proposed airworthiness
directive (AD) by November 16, 2004.
What Other ADs Are Affected by This Action?
(b) None.
What Airplanes Are Affected by This AD?
(c) This AD affects the following airplane model and serial
numbers that are certificated in any category: Model 390 Premier I,
Serials RB-1, RB-4 through RB-84, RB-87 through RB-90, RB-92 through
RB-96, RB-99 through RB-101, and RB-103 through RB-106.
What is the Unsafe Condition Presented in This AD?
(d) This AD is the result of reports of damage to the left and/
or right main landing gear (MLG) wire harness assemblies, which
resulted in various system failures/anomalies due to erroneous air/
ground status signals. The actions specified in this AD are intended
to prevent damage to the wire harnesses, which could result in loss
of lift dump, loss of pressurization, loss of transponder responses
to interrogations, and failure of other systems utilizing air/ground
status signals. This failure could lead to loss of control of the
airplane.
What Must I Do To Address This Problem?
(e) To address this problem, you must do the following:
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Actions Compliance Procedures
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(1) For airplanes prior to Inspect within 30 Follow Raytheon
serial number RB-100 with days after the Aircraft Company
Kit 390-8103-0001 effective date of Service Bulletin SB
installed, and for this AD. If damage 32-3678, dated June
airplanes with production is found, replace 2004.
installation of the plunger- the switch bracket
style squat switch, serial prior to further
numbers RB-100, RB-101, and flight after the
RB-103 through RB-106, inspection.
perform the following
actions:.
(i) Visually inspect the
squat switch bracket for
corrosion or cracking
(damage).
(ii) If damage is found,
replace the switch bracket
with part number 390-810008-
0003/-0004.
(2) All airplanes affected Within 30 days after Follow Raytheon
by this AD perform the the effective date arcart Company
following actions:. of this AD. Service Bulletin SB
(i) Inspect MLG wiring 32-3678, dated June
harness service loop for 2004.
excessive length in air
mode (strut extended). The
radius of the wire harness
service loop should not
exceed that of the brake
hose service loop. The
radius of the brake hose
loop should not exceed the
radius of the tire. If the
length is excessive in air
mode, correct in accordance
with Raytheon Aircraft
Company Service Bulletin SB
32-3678, dated June 2004..
(ii) Remove and relocate tie
straps and M85052/1-8
mounting clamp.
(iii) Perform the landing
gear operational test.
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May I Request an Alternative Method of Compliance?
(f) You may request a different method of compliance or a
different compliance time for this AD by following the procedures in
14 CFR 39.19. Unless FAA authorizes otherwise, send your request to
your principal inspector. The principal inspector may add comments
and will send your request to the Manager, Wichita Aircraft
Certification Office (ACO), FAA. For information on any already
approved alternative methods of compliance, contact Philip Petty,
Aerospace Engineer, ACE-119W, Wichita Aircraft Certification Office,
1801 Airport Road, Room 100, Wichita, Kansas 67209; telephone: (316)
946-4139; facsimile: (316) 946-4107.
May I Get Copies of the Documents Referenced in this AD?
(g) To get copies of the documents referenced in this AD,
contact Raytheon Aircraft Company, PO Box 85, Wichita, Kansas 67201-
0085; telephone: (800) 625-7043. To view the AD docket, go to the
Docket Management Facility; U.S. Department of Transportation, 400
Seventh Street, SW., Nassif Building, Room PL-401, Washington, DC,
or on the Internet at http://dms.dot.gov. The docket number is FAA
2004-19119.
Issued in Kansas City, Missouri, on September 29, 2004.
Dorenda D. Baker,
Manager, Small Airplane Directorate, Aircraft Certification Service.
[FR Doc. 04-22585 Filed 10-6-04; 8:45 am]
BILLING CODE 4910-13-P