AD 83-22-08

83-22-08 B.F. GOODRICH: Amendment 39-4765. Applies to B.F. Goodrich Emergency Evacuation Slide/Rafts P/Ns 7A1340 series, 7A1342 series, 7A1371 series, and 7A1373 series. These slide/rafts are installed on Boeing Model 747-100 and 747-200B airplanes in accordance with Supplemental Type Certificate (STC) SA574GL, and on Boeing Model 747-100B, 747SR, and 747-300 airplanes in accordance with STC SA575GL. Compliance required as indicated below. To assure proper functioning of B.F. Goodrich Slide/Rafts, accomplish the following unless previously accomplished in accordance with the procedures in B.F. Goodrich Service Bulletin 25-081, Revision 1, dated September 27, 1983.

A. For B.F. Goodrich Slide/Rafts, P/Ns 7A1340 series or 7A1371 series S/Ns G001 thru G289, and P/Ns 7A1342 series or 7A1373 series, S/Ns G001 thru G087: Within 20 calendar days after the effective date of this AD perform the maintenance procedures contained in B. F. Goodrich Service Bulletin 25-081, Revision 1, dated September 27, 1983, or subsequent FAA approved revisions, on installed slide/rafts or on slide/rafts prior to installation. Repeat inspections per paragraph C., below.

B. For all B.F. Goodrich Slide/Rafts, P/N's 7A1340 series, 7A1342 series, 7A1371 series and 7A1373 series, inspect all serial numbers installed prior to September 1, 1983, and not inspected per paragraph A., above, in accordance with B.F. Goodrich Service Bulletin 25-081, Rev. 1, dated September 27, 1983, or subsequent FAA approved revision, within 120 days of the effective date of this AD. Slides installed subsequent to August 31, 1983, must be inspected in accordance with B.F. Goodrich Service Bulletin 25-081, Revision 1, dated September 27, 1983, or subsequent FAA approved revision, within 180 days of last leak check inspection. (Reference Service Bulletin Section 2B.) Repeat inspections per Paragraph C., below.

C. To prevent undetected deterioration repeat the inspection of all installed B.F. Goodrich Slide/Rafts, P/Ns 7A1340 series, 7A1342 series, 7A1371 series and 7A1373 series, in accordance with Section 2B of B.F. Goodrich Service Bulletin 25-081, Rev. 1, dated September 27, 1983, or subsequent FAA approved revision, within 180 days of last inspection or within 180 days of installation.

D. Alternate means of compliance which provide an equivalent level of safety may be used when approved by the Manager, Chicago Aircraft Certification Office, FAA, Central Region.

E. Upon request of operator, an FAA Principal Maintenance Inspector, subject to prior approval by Manager, Chicago Aircraft Certification Office, FAA, Central Region, can adjust the compliance times if the request contains substantiating data to justify the increase for the operator.

F. 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 inspections and/or modifications required by this AD.

All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to B.F. Goodrich Company, Attn: Mr. Earl Lucas, Dept. 1809, Bldg. 17F, 500 South Main Street, Akron, Ohio 44318.

These documents also may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington.

This amendment becomes effective November 15, 1983.