[Federal Register: January 12, 2004 (Volume 69, Number 7)]
[Rules and Regulations]
[Page 1659-1661]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr12ja04-5]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 2003-NM-55-AD; Amendment 39-13429; AD 2004-01-15]
RIN 2120-AA64
Airworthiness Directives; McDonnell Douglas Model 717-200
Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment adopts a new airworthiness directive (AD),
[[Page 1660]]
applicable to certain McDonnell Douglas Model 717-200 airplanes, that
requires repetitive inspections of the electric motor of the auxiliary
hydraulic pump for electrical resistance, continuity, mechanical
rotation, and associated wiring resistance/voltage; and corrective
actions, if necessary. This action is necessary to prevent various
failures of the electric motor of the auxiliary hydraulic pump and
associated wiring, which could result in fire at the auxiliary
hydraulic pump and consequent damage to the adjacent electrical
equipment and/or structure. This action is intended to address the
identified unsafe condition.
DATES: Effective February 17, 2004.
The incorporation by reference of a certain publication listed in
the regulations is approved by the Director of the Federal Register as
of February 17, 2004.
ADDRESSES: The service information referenced in this AD may be
obtained from Boeing Commercial Aircraft Group, Long Beach Division,
3855 Lakewood Boulevard, Long Beach, California 98046, Attention: Data
and Service Management, Dept. C1-L5A (D800-0024). 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 FAA, Los Angeles Aircraft Certification Office,
3960 Paramount Boulevard, Lakewood, California; or at the Office of the
Federal Register, 800 North Capitol Street, NW., suite 700, Washington,
DC.
FOR FURTHER INFORMATION CONTACT: Albert Lam, Aerospace Engineer;
Systems and Equipment Branch, ANM-130L, FAA, Los Angeles Aircraft
Certification Office, 3960 Paramount Boulevard, Lakewood, California
90712-4137; telephone (562) 627-5346; fax (562) 627-5210.
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 McDonnell Douglas Model
717-200 airplanes was published in the Federal Register on October 1,
2003 (68 FR 56594). That action proposed to require repetitive
inspections of the electric motor of the auxiliary hydraulic pump for
electrical resistance, continuity, mechanical rotation, and associated
wiring resistance/voltage; and corrective actions, if necessary.
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.
Interim Action
This is considered to be interim action until final action is
identified, at which time the FAA may consider further rulemaking.
Cost Impact
There are approximately 95 airplanes of the affected design in the
worldwide fleet. The FAA estimates that 67 airplanes of U.S. registry
will be affected by this AD, that it will take approximately 1 work
hour per airplane to accomplish the required inspection, and that the
average labor rate is $65 per work hour. Based on these figures, the
cost impact of the AD on U.S. operators is estimated to be $4,355, or
$65 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. The cost impact figures discussed
in AD rulemaking actions represent only the time necessary to perform
the specific actions actually required by the AD. These figures
typically do not include incidental costs, such as the time required to
gain access and close up, planning time, or time necessitated by other
administrative actions.
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
0
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
0
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]
0
2. Section 39.13 is amended by adding the following new airworthiness
directive:
2004-01-15 McDonnell Douglas: Amendment 39-13429. Docket 2003-NM-55-
AD.
Applicability: Model 717-200 airplanes, manufacturer's fuselage
numbers 5002 through 5200 inclusive; certificated in any category.
Compliance: Required as indicated, unless accomplished
previously.
To prevent various failures of electric motor of the auxiliary
hydraulic pump and associated wiring, which could result in fire at
the auxiliary hydraulic pump and consequent damage to the adjacent
electrical equipment and/or structure, accomplish the following:
Service Bulletin References
(a) The term ``service bulletin,'' as used in this AD, means the
Accomplishment Instructions of Boeing Alert Service Bulletin 717-
29A0005, dated July 31, 2002. Although the service bulletin
referenced in this AD specifies to submit certain information to the
manufacturer, this AD does not include such a requirement.
Initial Inspection and Testing
(b) Prior to the accumulation of 3,000 total flight hours, or
within 12 months after the effective date of this AD, whichever
occurs later, do an inspection of the electric motor of the
auxiliary hydraulic pump for electrical resistance, continuity,
mechanical rotation, and associated writing resistance/voltage per
the service bulletin.
Condition 1, No Failures: Repetitive Inspections
(c) If no failures are detected during any inspection required
by paragraph (b) of this AD, repeat the inspection thereafter at
intervals not to exceed 5,000 flight hours.
[[Page 1661]]
Condition 2, Failure of Any Pump Motor: Replacement and Repetitive
Inspections
(d) If any pump motor fails during any inspection required by
paragraph (b) of this AD, before further flight, replace the failed
auxiliary hydraulic pump with a serviceable pump, per the service
bulletin. Repeat the inspection required by paragraph (b) of this AD
at intervals not to exceed 5,000 flight hours.
Condition 3, Failure of Any Wiring: Repair and Repetitive Inspection
(e) If any wiring fails during any inspection required by
paragraph (b) of this AD, before further flight, troubleshoot and
repair the failed wiring, per the service bulletin. Repeat the
inspection at intervals not to exceed 5,000 flight hours.
Alternative Methods of Compliance
(f) In accordance with 14 CFR 39.19, the Manager, Los Angeles
Aircraft Certification Office, FAA, is authorized to approve
alternative methods of compliance (AMOCs) for this AD.
Incorporation by Reference
(g) The actions shall be done in accordance with Boeing Alert
Service Bulletin 717-29A0005, dated July 31, 2002. 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 Boeing Commercial Aircraft Group,
Long Beach Division, 3855 Lakewood Boulevard, Long Beach, California
98046, Attention: Data and Service Management, Dept. C1-L5A (D800-
0024). Copies may be inspected at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the
FAA, Los Angeles Aircraft Certification Office, 3960 Paramount
Boulevard, Lakewood, California; or at the Office of the Federal
Register, 800 North Capitol Street, NW., suite 700, Washington, DC.
Effective Date
(h) This amendment becomes effective on February 17, 2004.
Issued in Renton, Washington, on December 31, 2003.
Michael J. Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 04-424 Filed 1-9-04; 8:45 am]
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