64-20-02 SUD AVIATION: Amdt. 800 Part 507 Federal Register August 22, 1964. Applies to Caravelle Models III and VIR Aircraft.
Compliance required as indicated.
As a result of a landing gear malfunction which resulted in landing gear interference with the aluminum fuel lines and electric wiring in the wheel wells, accomplish the following modifications:
(a) Within 300 hours' time in service after the effective date of this AD, install 3 fusible plugs in each main landing gear wheel hub on all Model III aircraft except aircraft with Serial Numbers 170, 177, and higher as provided for in Hispano Suiza Aero Service Bulletin 111, Section 1, No. 46, dated December 2, 1963.
(b) Within 6,000 hours' time in service after the effective date of this AD, remove existing aluminum alloy fuel lines in the main landing gear wheel well and replace them with stainless steel tubing in all Models III and VIR aircraft except aircraft with Serial Numbers 136, 160, 171, and higher, as provided for in Sud Service Bulletin 28-31 dated February 12, 1964, or FAA approved equivalent.
(c) Within 6,000 hours' time in service after the effective date of this AD, install protective shrouds over electric wiring and fuel lines in the main landing gear wheel wells on all Model III aircraft except aircraft with Serial Numbers 172 and higher as provided for in Sud Service Bulletin 53-35 dated May 4, 1964, or FAA approved equivalent.
(Sud Service Bulletins 28-31 dated February 12, 1964, 53-35 Revision 1 dated May 4, 1964, and Hispano Suiza Service Bulletin 111, Sections 1, No. 46 dated December 2, 1963, pertain to this same subject.)
This directive effective September 21, 1964.