# AD 83-15-08 R1: Fuselage Skin Lap Joints - Type: Airworthiness directive - Status: Current - Products: Airbus BAC 1-11 200 Series and BAC 1-11 400 Series - Effective: August 7, 1989 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Large airplane - Amendment: 39-6255 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DD9BC244F32E9F70862569EB005AC909.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/83-15-08-R1 ## The airworthiness directive 83-15-08 R1 BRITISH AEROSPACE: Amendment 39-4697 as revised by Amendment 39- 6255. Applicability: All Model BAC 1-11 200 and 400 series airplanes, certificated in any category. Compliance: Required as indicated unless previously accomplished. To prevent structural failure of the fuselage, accomplish the following: A. Perform initial and repetitive visual and eddy current inspections of fuselage skin lap joints for cracks and loose rivets at the intervals shown in Table I of this AD, in accordance with Section 2, of the Accomplishment Instructions, of British Aerospace Alert Service Bulletin 53-A-PM5726, Issue 3, dated May 26, 1988. B. Repair any identified cracks or loose rivets prior to further flight, in accordance with paragraph 2.4.2 of British Aerospace Alert Service Bulletin 53-A-PM5726, Issue 3, dated May 26, 1988; or Chapter 53-02-0, Figure 89, of the BAC 1-11 Structural Repair Manual, whichever is appropriate; or in a manner approved by the Manager, Standardization Branch, ANM-113, FAA, Northwest Mountain Region. C. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Northwest Mountain Region. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who will either concur or comment and then send it to the Manager, Standardization Branch, ANM-113. D. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of the requirements of this AD. All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to British Aerospace, Librarian for Service Bulletins, P.O. Box 17414, Dulles International Airport, Washington, D.C. 20041. These documents may be examined atthe FAA, Northwest Mountain Region, Transport Airplane Directorate, 17900 Pacific Highway South, Seattle, Washington, or the Standardization Branch, 9010 East Marginal Way South, Seattle, Washington. This AD revises AD 83-15-08, Amendment 39-4697. This amendment (39-6255, AD 83-15-08 R1) becomes effective on August 7, 1989. TABLE I Airplanes Affected AD 83-15-08 Previously Complied With? Initial Inspection Threshold for this AD Repetitive Inspection Interval Airplanes operated only at standard cabin pressure of 7.5 psi max cabin differential pressure NO Whichever occurs later: -Within 1,250 landings after September 6,1983 (effective date of AD 83-15-08); or For airplanes with less than 50,000 landings: Visual Inspection: -Every 1,250 landings -Upon accumulating the number of landings determined by Figure 1 of British Aerospace Alert Service Bulletin 53-A-PM5726, Revision 3, dated May 26, 1988 Eddy Current Inspection: -Every 3,750 landings For airplanes with 50,000 or more landings: YES Visual Inspection: -Within 1,250 landings after the last visual inspection in accordance with AD 83-15-08 Eddy Current Inspection: -Within 3,750 landings after the last eddy current inspection in accordance with AD 83-15-08 Visual Inspection: -Every 1,875 landings Eddy Current Inspection: -Every 3,750 landings Airplanes operated at increased cabin pressure of 7.75 psi max cabin differential pressure NO Whichever occurs later: -Within 1,250 landings after September 6,1983 (effective date of AD 83-15-08); or -Upon accumulation of 35,000 landings. Visual Inspection: -Every 1,600 landings Eddy Current Inspection: -Every 3,200 landings YES Visual Inspection: -Within 1,600 landings after the last visual inspection in accordance with AD 83-15-08 Eddy Current Inspection: -Within 3,200 landings after the last eddy current inspection in accordance with AD 83-15-08 Airplanes operated at increased cabin pressure of 8.2 psi max cabin differential pressure NO Whichever occurs later: -Within 1,250 landings after September 6, 1983 (effective date of AD 83-15-08); or -Upon accumulation of 30,000 landings. Visual Inspection: -Every 1,250 landings Eddy Current Inspection: -Every 2,500 landings YES Visual Inspection: -Within 1,250 landings after the last visual inspection in accordance with AD 83-15-08. Eddy Current Inspection: -Within 2,500 landings after the last eddy current inspection in accordance with AD 83-15-08. Airplanes for which cabin max operating pressure is reduced to 6.0 PSI max cabin differential pressure NO or YES (as applicable) Visual Inspection: -The same as shown above for the max cabin differential pressure applicable to the airplane in question. Eddy Current Inspection: -Every 5,600 landings Eddy Current Inspection: -The same as shown above for the max cabin differential pressure applicable to the airplane in question. For all airplanes: Visual Inspection: -Every 1,875 landings ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A5EU](https://openairdocs.org/tcds/A5EU): Airbus SAS; names 2 of 2 models: BAC 1-11 200 Series, BAC 1-11 400 Series ## Registered aircraft it may apply to (OpenAirDocs) No registered aircraft matched the models it names. Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.