[Federal Register Volume 64, Number 248 (Tuesday, December 28, 1999)]
[Rules and Regulations]
[Pages 72530-72531]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 99-33288]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 99-NM-201-AD; Amendment 39-11477; AD 99-26-17]
RIN 2120-AA64
Airworthiness Directives; British Aerospace BAe Model ATP
Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment adopts a new airworthiness directive (AD),
applicable to certain British Aerospace BAe Model ATP airplanes, that
requires modification of the engine intake ducts to provide new cable
routes and improved contamination protection of connectors on the
engine intake de-icing system. This amendment is prompted by issuance
of mandatory continuing airworthiness information by a foreign civil
airworthiness authority. The actions specified by this AD are intended
to prevent chafing and subsequent damage to the engine intake de-icing
system wiring, and contamination of electrical connectors and plugs.
Damage to system wiring or contamination of the electrical connectors
or plugs could result in loss of engine intake de-icing capability,
accretion of ice in the intake duct, ice ingestion, and consequent
engine flameout.
DATES: Effective February 1, 2000.
The incorporation by reference of certain publications listed in
the regulations is approved by the Director of the Federal Register as
of February 1, 2000.
ADDRESSES: The service information referenced in this AD may be
obtained from British Aerospace Regional Aircraft American Support,
13850 Mclearen Road, Herndon, Virginia 20171. This information may be
examined at the Federal Aviation Administration (FAA), Transport
Airplane Directorate, Rules Docket, 1601 Lind Avenue, SW., Renton,
Washington; or at the Office of the Federal Register, 800 North Capitol
Street, NW, suite 700, Washington, DC.
FOR FURTHER INFORMATION CONTACT: Norman B. Martenson, Manager,
International Branch, ANM-116, FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW, Renton, Washington 98055-4056; telephone (425)
227-2110; fax (425) 227-1149.
SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) to include an airworthiness
directive (AD) that is applicable to certain British Aerospace BAe
Model ATP airplanes was published in the Federal Register on October
26, 1999 (64 FR 57600). That action proposed to require modification of
the engine intake ducts to provide new cable routes and improved
contamination protection of connectors on the engine intake de-icing
system.
Comments
Interested persons have been afforded an opportunity to participate
in the making of this amendment. No comments were submitted in response
to the proposal or the FAA's determination of the cost to the public.
Conclusion
The FAA has determined that air safety and the public interest
require the adoption of the rule as proposed.
Cost Impact
The FAA estimates that 10 airplanes of U.S. registry will be
affected by this AD, that it will take approximately 56 work hours per
airplane to accomplish the required actions, and that the average labor
rate is $60 per work hour. Required parts will be supplied by the
manufacturer at no cost to the operators. Based on these figures, the
cost impact of the AD on U.S. operators is estimated to be $33,600, or
$3,360 per airplane.
The cost impact figure discussed above is based on assumptions that
no operator has yet accomplished any of the requirements of this AD
action, and that no operator would accomplish those actions in the
future if this AD were not adopted.
Regulatory Impact
The regulations adopted herein 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. Therefore, it
is determined that this final rule does not have federalism
implications under Executive Order 13132.
For the reasons discussed above, I certify that this action (1) is
not a ``significant regulatory action'' under Executive Order 12866;
(2) is not a ``significant rule'' under 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. A final evaluation has been prepared for this action
and it is contained in the Rules Docket. A copy of it may be obtained
from the Rules Docket at the location provided under the caption
ADDRESSES.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
Accordingly, pursuant to the authority delegated to me by the
Administrator, the Federal Aviation Administration amends part 39 of
the Federal Aviation Regulations (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. Section 39.13 is amended by adding the following new
airworthiness directive:
99-26-17 British Aerospace Regional Aircraft [Formerly Jetstream
Aircraft Limited; British Aerospace (Commercial Aircraft) Limited]:
Amendment 39-11477. Docket 99-NM-201-AD.
Applicability: BAe Model ATP airplanes, constructor's numbers
2002 through 2063 inclusive, certificated in any category.
Note 1: This AD applies to each airplane identified in the
preceding applicability provision, regardless of whether it has been
modified, altered, or repaired in the area subject to the
requirements of this AD. For airplanes that have been modified,
altered, or repaired so that the performance of the requirements of
this AD is affected, the owner/operator must request approval for an
alternative method of compliance in accordance with paragraph (b) of
this AD. The request should include an assessment of the effect of
the modification, alteration, or repair on the unsafe condition
addressed by
[[Page 72531]]
this AD; and, if the unsafe condition has not been eliminated, the
request should include specific proposed actions to address it.
Compliance: Required as indicated, unless accomplished
previously.
To prevent chafing and subsequent damage to the engine intake
de-icing system wiring, and contamination of electrical connectors
and plugs; which could result in loss of engine intake de-icing
capability, accretion of ice in the intake duct, ice ingestion, and
consequent engine flameout, accomplish the following:
Modification
(a) Within 180 days after the effective date of this AD,
accomplish the modification of the engine intake ducts (including
inspection of the cable looms, wires, electrical connectors, and
associated hardware for damage; replacement of damaged parts with
new or serviceable parts; rerouting and modification of the flexible
duct cable loom and inlet duct power loom; and installation of new
connector boots and backshells on electrical connectors on the
engine intake de-icing system) to provide new cable routes and
improved contamination protection of connectors on the engine intake
de-icing system, in accordance with British Aerospace Service
Bulletin ATP-30-056, dated June 11, 1999.
Note 2: British Aerospace Service Bulletin ATP-30-056, dated
June 11, 1999, references Dunlop Limited Aviation Division Service
Bulletin ACA1324-30-96, dated June 11, 1999, as an additional source
of service information to accomplish the modification.
Alternative Methods of Compliance
(b) An alternative method of compliance or adjustment of the
compliance time that provides an acceptable level of safety may be
used if approved by the Manager, International Branch, ANM-116, FAA,
Transport Airplane Directorate. Operators shall submit their
requests through an appropriate FAA Principal Maintenance Inspector,
who may add comments and then send it to the Manager, International
Branch, ANM-116.
Note 3: Information concerning the existence of approved
alternative methods of compliance with this AD, if any, may be
obtained from the International Branch, ANM-116.
Special Flight Permits
(c) Special flight permits may be issued in accordance with
sections 21.197 and 21.199 of the Federal Aviation Regulations (14
CFR 21.197 and 21.199) to operate the airplane to a location where
the requirements of this AD can be accomplished.
Incorporation by Reference
(d) The modification shall be done in accordance with British
Aerospace Service Bulletin ATP-30-056, dated June 11, 1999. This
incorporation by reference was approved by the Director of the
Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part
51. Copies may be obtained from British Aerospace Regional Aircraft
American Support, 13850 Mclearen Road, Herndon, Virginia 20171.
Copies may be inspected at the FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton, Washington; or at the Office of the
Federal Register, 800 North Capitol Street, NW., suite 700,
Washington, DC.
Note 4: The subject of this AD is addressed in British
airworthiness directive 007-06-99.
(e) This amendment becomes effective on February 1, 2000.
Issued in Renton, Washington, on December 17, 1999.
D.L. Riggin,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 99-33288 Filed 12-27-99; 8:45 am]
BILLING CODE 4910-13-U
