[Federal Register Volume 64, Number 194 (Thursday, October 7, 1999)]
[Rules and Regulations]
[Pages 54512-54513]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 99-25745]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 99-CE-15-AD; Amendment 39-11348; AD 99-21-05]
RIN 2120-AA64
Airworthiness Directives; Fairchild Aircraft, Inc. Models SA226-
T, SA226-T(B), SA226-AT, and SA226-TC Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment supersedes Airworthiness Directive (AD) 77-25-
03, which currently requires repetitively inspecting for cracks on the
landing gear actuator rod ends that are equipped with grease fittings,
on Fairchild Aircraft, Inc. (Fairchild Aircraft) Models SA226-T, SA226-
AT, and SA226-TC airplanes. AD 77-25-03 also requires replacing the
landing gear actuator rod ends with an improved part either immediately
or at a certain time period depending on the results of the
inspections. Replacement of all six rod ends terminates the repetitive
inspection requirements of AD 77-25-03. This AD is the result of
failures of the landing gear rod ends on airplanes where the rod ends
were replaced in accordance with AD 77-25-03. Fairchild has re-designed
the landing gear rod ends as a result of these failures. This AD
requires replacing all landing gear rod ends with these improved design
parts on all SA226 series airplanes, including those manufactured since
AD 77-25-03 was issued (i.e., the Model SA226-T(B) airplanes). The
actions specified by this AD are intended to prevent failure of the
landing gear actuator caused by cracks in the rod ends, which could
result in the inability to lower the landing gear during a landing with
consequent possible loss of control of the airplane.
DATES: Effective November 16, 1999.
The incorporation by reference of certain publications listed in
the regulations is approved by the Director of the Federal Register as
of November 16, 1999.
ADDRESSES: Service information that applies to this AD may be obtained
from Fairchild Aircraft, Inc., P.O. Box 790490, San Antonio, Texas
78279-0490; telephone: (210) 824-9421; facsimile: (210) 820-8609. This
information may also be examined at the Federal Aviation Administration
(FAA), Central Region, Office of the Regional Counsel, Attention: Rules
Docket No. 99-CE-15-AD, Room 1558, 601 E. 12th Street, Kansas City,
Missouri 64106; or at the Office of the Federal Register, 800 North
Capitol Street, NW, suite 700, Washington, DC.
FOR FURTHER INFORMATION CONTACT: Hung Viet Nguyen, FAA, Airplane
Certification Office, 2601 Meacham Boulevard, Fort Worth, Texas 76193-
0150; telephone: (817) 222-5155; facsimile: (817) 222-5960.
SUPPLEMENTARY INFORMATION:
Events Leading to the Issuance of This AD
AD 77-25-03, Amendment 39-3090, currently requires repetitively
inspecting for cracks on the landing gear actuator rod ends that are
equipped with grease fittings, on Fairchild Aircraft Models SA226-T,
SA226-AT, and SA226-TC airplanes; and replacing the landing gear
actuator rod ends.
A proposal to amend part 39 of the Federal Aviation Regulations (14
CFR part 39) to include an AD that would apply to Fairchild Aircraft
Models SA226-T, SA226-T(B), SA226-AT, and SA226-TC airplanes that are
equipped with any landing gear actuator rod end other than part number
(P/N) VTA00350 (or FAA-approved equivalent part number) was published
in the Federal Register as a notice of proposed rulemaking (NPRM) on
May 11, 1999 (64 FR 25218). The NPRM proposed to supersede AD 77-25-03
with a new AD that would require replacing all landing gear rod ends
with improved design parts, P/N VTA00350 (or FAA-approved equivalent
part number). Accomplishment of the proposed replacements as specified
in the NPRM would be required in accordance with Fairchild Aircraft
Service Bulletin SB A32-014, Revised: January 26, 1999.
The NPRM was the result of failures of the landing gear rod ends on
airplanes where the rod ends were replaced in accordance with AD 77-25-
03. Fairchild has re-designed the landing gear rod ends as a result of
these failures.
Interested persons have been afforded an opportunity to participate
in the making of this amendment. One comment was received in favor of
the NPRM and no comments were received on the FAA's determination of
the cost to the public.
The FAA's Determination
After careful review of all available information related to the
subject presented above, the FAA has determined that air safety and the
public interest require the adoption of the rule as proposed except for
minor editorial corrections. The FAA has determined that these minor
corrections will not change the meaning of the AD and will not add any
additional burden upon the public than was already proposed.
Cost Impact
The FAA estimates that 190 airplanes in the U.S. registry will be
affected by this AD, that it will take approximately 6 workhours per
airplane to accomplish the replacements, and that the average labor
rate is approximately $60 an hour. Parts cost approximately $169 per
rod (6 rods per airplane). Based on these figures, the total cost
impact of this AD on U.S. operators is estimated to be $261,060, or
$1,374 per airplane.
These figures are based upon the presumption that no affected
airplane owner/operator has accomplished the replacement.
Regulatory Impact
The regulations adopted herein will not have substantial direct
effects on the States, on the relationship between the national
government and the States, or on the distribution of power and
[[Page 54513]]
responsibilities among the various levels of government. Therefore, in
accordance with Executive Order 12612, it is determined that this final
rule does not have sufficient federalism implications to warrant the
preparation of a Federalism Assessment.
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 copy of the final evaluation prepared for this
action is contained in the Rules Docket. A copy of it may be obtained
by contacting 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 removing Airworthiness Directive
(AD) 77-25-03, Amendment 39-3090, and by adding a new AD to read as
follows:
99-21-05 Fairchild Aircraft, Inc.: Amendment 39-11348; Docket No.
99-CE-15-AD; Supersedes AD 77-25-03, Amendment 39-3090.
Applicability: The following airplanes models and serial
numbers, certificated in any category; that are equipped with any
landing gear actuator rod end other than part number (P/N) VTA00350
(or FAA-approved equivalent part number).
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Model Serial No.
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SA226-T............................... T201 through T275 and T277
through T291.
SA226-T(B)............................ T(B) 276 and T(B) 292 through
T(B)417.
SA226-AT.............................. AT001 through AT074.
SA226-TC.............................. TC201 through TC396, TC398
through TC413, and TC418
through TC419.
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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 (d) of
this AD. The request should include an assessment of the effect of
the modification, alteration, or repair on the unsafe condition
addressed by 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 in the body of this AD, unless
already accomplished.
To prevent failure of the landing gear actuator caused by cracks
in the rod ends, which could result in the inability to lower the
landing gear during a landing with consequent possible loss of
control of the airplane, accomplish the following:
(a) Within the next 500 hours time-in-service (TIS) after the
effective date of this AD, replace any landing gear actuator rod end
that is not P/N VTA00350 (or FAA-approved equivalent part number)
with one that incorporates this part number. Accomplish this
replacement in accordance with Fairchild Aircraft Alert Service
Bulletin SB A32-014, Revised: January 26, 1999.
(b) As of the effective date of this AD, no person may install,
on any affected airplane, any landing gear actuator rod end that is
other than P/N VTA00350 (or FAA-approved equivalent part number).
(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.
(d) An alternative method of compliance or adjustment of the
compliance time that provides an equivalent level of safety may be
approved by the Manager, FAA, Airplane Certification Office (ACO),
2601 Meacham Boulevard, Fort Worth, Texas 76193-0150.
(1) The request shall be forwarded through an appropriate FAA
Maintenance Inspector, who may add comments and then send it to the
Manager, Fort Worth ACO.
(2) Alternative methods of compliance approved in accordance
with AD 77-25-03 are not considered approved as alternative methods
of compliance for this AD.
Note 2: Information concerning the existence of approved
alternative methods of compliance with this AD, if any, may be
obtained from the Fort Worth ACO.
(e) The replacements required by this AD shall be done in
accordance with Fairchild Aircraft Alert Service Bulletin SB A32-
014, Revised: January 26, 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
Fairchild Aircraft, Inc., P.O. Box 790490, San Antonio, Texas 78279-
0490. Copies may be inspected at the FAA, Central Region, Office of
the Regional Counsel, Room 1558, 601 E. 12th Street, Kansas City,
Missouri, or at the Office of the Federal Register, 800 North
Capitol Street, NW, suite 700, Washington, DC.
(f) This amendment supersedes AD 77-25-03, Amendment 39-3090.
(g) This amendment becomes effective on November 16, 1999.
Issued in Kansas City, Missouri, on September 27, 1999.
Michael K. Dahl,
Acting Manager, Small Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 99-25745 Filed 10-6-99; 8:45 am]
BILLING CODE 4910-13-P
