[Federal Register: December 9, 2005 (Volume 70, Number 236)]
[Proposed Rules]
[Page 73173-73175]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr09de05-21]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2005-23249; Directorate Identifier 2005-NM-219-AD]
RIN 2120-AA64
Airworthiness Directives; Gulfstream Model GV-SP Series Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for certain Gulfstream Model GV-SP series airplanes. This proposed AD
would require an inspection to determine the serial number of the anti-
skid control unit (ACU) in the right electronics equipment rack, and
replacement of the ACU with a new or serviceable ACU if necessary. This
proposed AD results from a report that an airplane temporarily lost
normal braking function during landing rollout on a pre-delivery
flight. We are proposing this AD to prevent loss of normal braking
function, which could result in a runway overrun that could cause
injury to flightcrew or passengers or damage to the airplane.
DATES: We must receive comments on this proposed AD by January 23,
2006.
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 Gulfstream Aerospace Corporation, Technical Publications
Dept., P.O. Box 2206, Savannah, Georgia 31402-2206, for the service
information identified in this proposed AD.
FOR FURTHER INFORMATION CONTACT: Darby Mirocha, Aerospace Engineer,
Systems and Equipment Branch, ACE-119A, FAA, Atlanta Aircraft
Certification Office, One Crown Center, 1895 Phoenix Boulevard, suite
450, Atlanta, Georgia 30349; telephone (770) 703-6095; fax (770) 703-
6097.
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-
23249; Directorate Identifier 2005-NM-219-AD'' at the
[[Page 73174]]
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 indicating that a Gulfstream Model GV-SP
series airplane temporarily lost normal braking function during landing
rollout on a pre-delivery flight. The flightcrew received no indication
of failure or degradation within the braking system prior to the loss
of braking. Normal braking function was recovered after the wheel speed
decreased through 50 knots. Investigation revealed that the temporary
loss of braking was caused by incorrect capacitors installed in the
anti-skid control unit (ACU). The manufacturer of the ACUs has
identified a range of serial numbers that may have this defect. Loss of
normal braking function, if not corrected, could result in a runway
overrun that could cause injury to flightcrew or passengers or damage
to the airplane.
Relevant Service Information
We have reviewed Gulfstream G500 Customer Bulletin 17, dated August
12, 2005 (for Model GV-SP (G500) series airplanes); and Gulfstream G550
Customer Bulletin 17, dated August 12, 2005 (for Model GV-SP (G550)
series airplanes). The customer bulletins describe procedures for
inspecting the ACU in the right electronics equipment rack to determine
the serial number (S/N). If the ACU unit has an affected S/N, the
customer bulletins also describe procedures for replacing the ACU unit
with a new part having a S/N outside the affected range or with a
serviceable part having a re-identified S/N. Accomplishing the actions
specified in the service information is intended to adequately address
the unsafe condition.
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 Customer Bulletins.''
Differences Between the AD and Customer Bulletins
Although the customer bulletins recommend accomplishing the
inspection within 60 days, we have determined that extending the
compliance time will not adversely affect safety for the affected
fleet. In developing an appropriate compliance time for this AD, we
considered the degree of urgency associated with the subject unsafe
condition, the average utilization of the affected fleet, and the time
necessary to perform the inspection (1 hour). In light of all of these
factors, we find that a 90-day compliance time represents an
appropriate interval of time for affected airplanes to continue to
operate without compromising safety. This difference has been
coordinated with Gulfstream.
Operators should note that, although the Accomplishment
Instructions of the referenced customer bulletins describe procedures
for submitting a sheet recording compliance with the customer
bulletins, this AD would not require those actions. We do not need this
information from operators.
Clarification of Customer Bulletins
The accomplishment instructions of the referenced customer
bulletins specify contacting Gulfstream if technical assistance is
required. We have included a note in this AD to clarify that any
deviation from the instructions in the applicable customer bulletin
must be approved as an alternative method of compliance under paragraph
(h) of this AD.
Costs of Compliance
There are about 20 airplanes of the affected design in the
worldwide fleet. This proposed AD would affect about 15 airplanes of
U.S. registry. The proposed inspection would take about 1 work hour per
airplane, at an average labor rate of $65 per work hour. Based on these
figures, the estimated cost of the proposed AD for U.S. operators is
$975, or $65 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
[[Page 73175]]
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):
Gulfstream Aerospace Corporation: Docket No. FAA-2005-23249;
Directorate Identifier 2005-NM-219-AD.
Comments Due Date
(a) The FAA must receive comments on this AD action by January
23, 2006.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Gulfstream Model GV-SP series airplanes,
certificated in any category; serial numbers 5044-5063 inclusive.
Unsafe Condition
(d) This AD results from a report that an airplane temporarily
lost normal braking function during landing rollout on a pre-
delivery flight. We are issuing this AD to prevent loss of normal
braking function, which could result in a runway overrun that could
cause injury to flightcrew or passengers or damage to 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.
Inspection and Replacement If Necessary
(f) Within 90 days after the effective date of this AD, inspect
the anti-skid control unit (ACU) in the right electronics equipment
rack to determine the serial number (S/N), in accordance with the
Accomplishment Instructions of Gulfstream G500 Customer Bulletin 17,
dated August 12, 2005 (for Model GV-SP (G500) series airplanes); or
Gulfstream G550 Customer Bulletin 17, dated August 12, 2005 (for
Model GV-SP (G550) series airplanes); as applicable. If the S/N of
the ACU is in the affected range of S/N 355-400 inclusive: Replace
the ACU with a new ACU having a S/N outside the affected range or
with a serviceable ACU having a reidentified S/N, in accordance with
the applicable customer bulletin.
Note 1: The Accomplishment Instructions of the Gulfstream
customer bulletins instruct operators to contact Gulfstream if
technical assistance is required. However, any deviation from the
instructions provided in the applicable customer bulletin must be
approved as an alternative method of compliance under paragraph (h)
of this AD.
No Reporting Requirement
(g) Although the customer bulletins referenced in this AD
specify to submit certain information to the manufacturer, this AD
does not include that requirement.
AMOCs
(h)(1) The Manager, Atlanta Aircraft Certification Office, 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.
Issued in Renton, Washington, on December 2, 2005.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-23832 Filed 12-8-05; 8:45 am]
BILLING CODE 4910-13-P