[Federal Register Volume 60, Number 146 (Monday, July 31, 1995)]
[Rules and Regulations]
[Pages 38954-38956]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-17553]
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DEPARTMENT OF TRANSPORTATION
14 CFR Part 39
[Docket No. 94-NM-183-AD; Amendment 39-9310; AD 95-15-07]
Airworthiness Directives; British Aerospace Model BAC 1-11 200
and 400 Series Airplanes
AGENCY: Federal Aviation Administration, DOT.
ACTION: Final rule.
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SUMMARY: This amendment supersedes an existing airworthiness directive
(AD), applicable to British Aerospace Model BAC 1-11 200 and 400 series
airplanes, that currently requires structural inspections and repairs
or replacements, as necessary. This amendment requires additional
inspections of certain Structural Significant Items (SSI) and expansion
of the inspection area for certain other SSI's. This amendment is
prompted by the results of a structural integrity audit, which
indicated that in order to maintain the structural integrity of these
airplanes as they approach or exceed the manufacturer's original
fatigue design life goal, certain SSI's need to be inspected. The
actions specified by this AD are intended to ensure continuing
structural integrity of these airplanes.
DATES: Effective August 30, 1995.
The incorporation by reference of certain publications listed in
the regulations is approved by the Director of the Federal Register as
of August 30, 1995.
ADDRESSES: The service information referenced in this AD may be
obtained from British Aerospace, Airbus Limited, P.O. Box 77, Bristol
BS99 7AR, England. 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: William Schroeder, Aerospace Engineer,
Standardization Branch, ANM-113, FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (206)
227-2148; fax (206) 227-1149.
SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) by superseding AD 87-24-06 R1,
amendment 39-6037 (53 FR 37993, September 29, 1988), which is
applicable to British Aerospace Model BAC 1-11 200 and 400 series
airplanes, was published in the Federal Register on April 17, 1995 (60
FR 19179). The action proposed to require a revision of the FAA-
approved maintenance inspection program to include additional
structural inspections of certain Structural Significant Items (SSI),
expansion of the inspection area for certain other SSI's, and repair or
replacement of cracked parts; and establishes a life limit for the
engine mount/attachment structure on certain airplanes.
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.
The FAA has determined that air safety and the public interest require
the adoption of the rule as proposed.
The FAA estimates that 31 airplanes of U.S. registry will be
affected by this AD, that it will take approximately 158 work hours per
airplane to accomplish the actions, and that the average labor rate is
$60 per work hour. Based on these figures, the total cost impact of the
AD on U.S. operators is estimated to be $293,880, or $9,480 per
airplane, per inspection cycle.
The total cost impact figures discussed above are 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 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
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 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.
[[Page 38955]]
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. App. 1354(a), 1421 and 1423; 49 U.S.C.
106(g); and 14 CFR 11.89.
Sec. 39.13 [Amended]
2. Section 39.13 is amended by removing amendment 39-6037 (53 FR
37993, September 29, 1988), and by adding a new airworthiness directive
(AD), amendment 39-9310 , to read as follows:
95-15-07 British Aerospace Airbus Limited (Formerly British
Aerospace Commercial Aircraft Limited, British Aerospace Aircraft
Group): Amendment 39-9310. Docket 94-NM-183-AD. Supersedes AD 87-24-
06 R1, Amendment 39-6037.
Applicability: Model BAC 1-11 200 and 400 series airplanes,
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 use the authority
provided in paragraph (f) of this AD to request approval from the
FAA. This approval may address either no action, if the current
configuration eliminates the unsafe condition; or different actions
necessary to address the unsafe condition described in this AD. Such
a request should include an assessment of the effect of the changed
configuration on the unsafe condition addressed by this AD. In no
case does the presence of any modification, alteration, or repair
remove any airplane from the applicability of this AD.
Compliance: Required as indicated, unless accomplished
previously.
To ensure continuing structural integrity of the airplane,
accomplish the following:
(a) Within 6 months after November 3, 1988 (the effective date
of AD 87-24-06 R1, amendment 39-6037), incorporate a revision into
the FAA-approved maintenance inspection program which requires
inspections, repairs, and replacements, as necessary, in accordance
with Table 1, Table 2, and Table 3 of British Aerospace BAC 1-11
Alert Service Bulletin 51-A-PM5830, Issue 3, dated March 19, 1987.
The revision to the maintenance inspection program must include
procedures to notify the manufacturer when Structural Significant
Items (SSI) are found cracked or otherwise significantly
deteriorated. [Information collection requirements contained in this
regulation have been approved by the Office of Management and Budget
(OMB) under the provisions of the Paperwork Reduction Act of 1980
(44 U.S.C. 3501 et seq.) and have been assigned OMB Control Number
2120-0056.] The inspection thresholds, repetitive intervals, and
inspection techniques are listed in the alert service bulletin.
(b) Within 6 months after the effective date of this AD, replace
the revision of the FAA-approved maintenance inspection program
required by paragraph (a) of this AD, with a revision which requires
inspections, repairs, and replacements, as necessary, in accordance
with Table 1 (except Maintenance Planning Guide Reference Numbers
52-10- 6R and 53-10-29R), Table 2, and Table 3 of British Aerospace
BAC 1-11 Alert Service Bulletin 51-A-PM5830, Issue 4, dated January
28, 1993. The revision to the maintenance inspection program must
include procedures to notify the manufacturer when SSI's are found
cracked or otherwise significantly deteriorated. [Information
collection requirements contained in this regulation have been
approved by the Office of Management and Budget (OMB) under the
provisions of the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et
seq.) and have been assigned OMB Control Number 2120-0056.] The
inspection thresholds, repetitive intervals, and inspection
techniques are listed in the alert service bulletin.
Note 2
: Maintenance Planning Guide (MPG) Reference Numbers 52-10-6R and 53-
10-29R, listed in Table 1 of British Aerospace BAC 1-11 Alert Service
Bulletin 51-A-PM5830, Issue 4, dated January 28, 1993, are excluded
from the requirements of this AD for the following reasons:
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MPG reference
No. Reason
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52-10-6R........ Required by AD 87-21-06, amendment 39-5744.
53-10-29R....... Will be addressed in a separate rulemaking action.
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(c) Within one year after November 3, 1988 (the effective date
of AD 87-24-06 R1, amendment 39-6037), or prior to the accumulation
of the number of landings listed in the landing threshold indicated
in British Aerospace BAC 1-11 Alert Service Bulletin 51-A-PM5830,
Issue 3, dated March 19, 1987, whichever occurs later, and
thereafter, at intervals not to exceed the number of landings
specified in the alert service bulletin, accomplish the inspections,
repairs, and replacements, as necessary, of the SSI's identified in
Table 1, Table 2, and Table 3 of that service bulletin.
(d) Within one year after the effective date of this AD, or
prior to the accumulation of the number of landings listed in the
landing threshold indicated in British Aerospace BAC 1-11 Alert
Service Bulletin 51-A-PM5830, Issue 4, dated January 28, 1993,
whichever occurs later, and thereafter, at intervals not to exceed
the number of landings specified in the alert service bulletin,
accomplish the inspections, repairs, and replacements, as necessary,
of the SSI's identified in Table 1 (except Maintenance Planning
Guide Reference Numbers 52-10-6R and 53-10-29R), Table 2, and Table
3 of the alert service bulletin.
Note 3: For operators that have accomplished this inspection
previously in accordance with the requirements of AD 87-24-06 R1,
amendment 39-6037: This paragraph requires that the next scheduled
inspection for that SSI be performed within the repetitive interval
specified for that SSI in the alert service bulletin after the last
inspection performed in accordance with the requirements of AD 87-
24-06 R1 for that SSI.
(e) For any cracked structure detected during any inspection
required by this AD, prior to further flight, accomplish either
paragraph (e)(1), (e)(2), or (e)(3) of this AD.
(1) Replace the cracked part with a serviceable part of the same
part number, in accordance with the Airplane Maintenance Manual. Or
(2) Repair the cracked structure in accordance with the
Structural Repair Manual, listed in the service bulletin. Or
(3) Repair in accordance with a method approved by the Manager,
Standardization Branch, ANM-113, FAA, Transport Airplane
Directorate.
(f) 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, Standardization Branch, ANM-113,
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,
Standardization Branch, ANM-113.
Note 4: Information concerning the existence of approved
alternative methods of compliance with this AD, if any, may be
obtained from the Standardization Branch, ANM-113.
(g) 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.
(h) The inspections, repairs, and replacements shall be done in
accordance with British Aerospace BAC 1-11 Alert Service Bulletin
51-A-PM5830, Issue 4, dated January 28, 1993; as applicable. 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, Airbus Limited,
P.O. Box 77, Bristol BS99 7AR, England. 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.
[[Page 38956]]
(i) This amendment becomes effective on August 30, 1995.
Issued in Renton, Washington, on July 12, 1995.
Darrell M. Pederson,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 95-17553 Filed 7-28-95; 8:45 am]
BILLING CODE 4910-13-U