73-10-01 ROLLS ROYCE (1971) LTD: Amendment 39-1633. Applies to Rolls Royce RB 211-22-02 and RB 211-22-02/10 engines on Lockheed L-1011 airplanes.
Compliance is required as indicated.
To prevent improper VIGV scheduling due to binding of the variable inlet guide vanes master ram feedback control linkage accomplish the following:
At the next disassembly of an engine for cause, after the effective date of this AD, unless already accomplished, remove existing connecting rod Part No. 754/2/27340 from the Variable Inlet Guide Vane Control and -
(a) Install serviceable modified connecting rod Part No. 754/2/30438 in accordance with Plessey Aerospace Service Bulletin Number IGV 75-1 Revision 1, dated May 22, 1972 or an FAA-approved equivalent; or
(b) Rework and reinstall serviceable connecting rod Part No. 754/2/27340 in accordance with Plessey Aerospace Service Bulletin Number IGV 75-1 Revision 1, dated May 22, 1972 or an FAA-approved equivalent.
This amendment becomes effective May 8, 1973.