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AD 67-27-04 ACTIVE

Fin Rib Assembly
Key Information
AD Number 67-27-04 Status Active
Effective Date Not specified Issue Date Not specified
Docket Number Unknown Amendment 39-919
Product Type ["Aircraft"] Product Subtype ["Large Airplane"]
CFR Part --- - Part 39 CFR Section N/A
Citation This information is not available.
Applicability
Manufacturer(s) Airbus SAS
Model(s) BAC 1-11 200 Series
Regulatory Text

67-27-04 BRITISH AIRCRAFT: Amdt. 39-483 as amended by Amdt. 39-847 is further amended by Amdt. 39-919. Applies to Model BAC 1-11 200 Series airplanes that have not been modified to incorporate BAC Modification PM 2742(d).

Compliance required as indicated.

To prevent possible failure of the fin rib assembly, accomplish the following:

(a) For Model BAC 1-11 200 Series airplanes, within the next 200 hours' time in service after the effective date of this ad, or before the accumulation of 2,300 hours' time in service, whichever occurs later, and thereafter at intervals not to exceed 1,000 hours' time in from the last inspection for fin assemblies numbers 3, 4, and 5, and 1,500 hours' time in service for fin rib assemblies numbers 2 and 6, conduct a visual or radiographic inspection of the fin rib assemblies numbers 2, 3, 4, 5, and 6 for cracks in accordance with British Aircraft Corporation BAC 1-11 Alert Service Bulletin No. 55-A-PM 2730, Issue 2, or later ARB-approved issue, or an FAA-approved equivalent.

(b) Revoked.

(c) If damage to the fin ribs is found that is within the permissible limits specified in BAC 1-11 Alert Service Bulletin No. 55-A-PM 2730, Issue 2, or later ARB-approved issue, or an FAA-approved equivalent, reinspect local areas of known damage, using the inspection procedures specified in paragraph (a), at intervals not to exceed 200 hours' time in service from the last inspect

(d) If damage to the fin ribs is found that exceeds the permissible limits specified in the BAC 1-11 Alert Service Bulletin No. 55-A-PM 2730, Issue 2, or later ARB-approved issue, or an FAA-approved equivalent, repair the damaged parts in accordance with BAC 1-11 Structural Repair Manual or BAC 1-11 Service Bulletin No. 55-PM-2742, or later ARB-approved issue, or an FAA-approved equivalent, before further flight.

(e) The repetitive inspections required by paragraphs (a) and (c) of this AD may be discontinued for any one of the fin rib assemblies numbers 2, 3, 4, 5, or 6 for a period of 4,000 hours' time in service after that fin rib assembly has been modified in accordance with Part (c) of BAC 1-11 Service Bulletin No. 55-PM-2742, or an FAA-approved equivalent.

(f) Upon request of the operator, an FAA maintenance inspector, subject to prior approval of the Chief, Aircraft Certification Staff, FAA Europe, Africa, and Middle East Region may adjust the repetitive inspection intervals specified in the AD to permit compliance at an established inspection period of the operator if the request contains supporting data to justify the increase for the operator.

"NOTE: The inspections required by paragraph (c) are in addition to the general inspections required by paragraph (a)."

Amendment 39-483 effective October 19, 1967.
Amendment 39-847 effective September 30, 1969.

This amendment 39-919 effective upon publication in the Federal register.