| AD Number | 75-16-08 | Status | Active |
| Effective Date | August 22, 1975 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-2274 |
| Product Type | ["Engine"] | Product Subtype | Not specified |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Rolls-Royce plc |
| Model(s) | RB211-22B-02 RB211-22B/MOD 72-8700 RB211-524B-02 RB211-524B-B-02 RB211-524B2-19 RB211-524B2-B-19 RB211-524B3-02 RB211-524B4-02 RB211-524B4-D-02 RB211-524C2-19 RB211-524C2-B-19 RB211-524D4-19 RB211-524D4-39 RB211-524D4-B-19 RB211-524D4-B-39 RB211-524D4X-19 RB211-524D4X-B-19 RB211-524G2-19 RB211-524G2-T-19 RB211-524G3-19 RB211-524G3-T-19 RB211-524H-36 RB211-524H-T-36 RB211-524H2-19 RB211-524H2-T-19 |
75-16-08 ROLLS ROYCE (1971) LIMITED: Amendment 39-2274. Applies to Rolls Royce RB211 series engines, serial numbers 10389 and prior.
Compliance required by December 31, 1975, unless already accomplished.
To prevent damage in the intermediate and high pressure compressors that contributes to the frequency of high power surges, accomplish the following:
1. Modify the inlet guide vane spherical trunnions, bearing pads, actuating rings, and bearing support segments in accordance with Rolls-Royce (1971) Limited Service Bulletin RB211-72-3326, dated November 14, 1973, or an FAA-approved equivalent.
2. Modify the intermediate pressure (IP) compressor inlet guide vanes in accordance with Rolls-Royce (1971) Limited Service Bulletin RB211-72-3335, Revision 2, dated March 12, 1974, or an FAA-approved equivalent.
3. Modify the IP compressor stator vanes in the 4th and 5th stage stator assemblies in accordance with Rolls-Royce (1971) Limited Service Bulletin RB211-72-3482, dated April 9, 1974, or an FAA-approved equivalent.
This amendment becomes effective August 22, 1975.