Airworthiness Directive · Amendment 39-16956 · Rolls-Royce plc (RR) RB211-Trent 800 Series Turbofan Engines
Rolls-Royce plc (RR) RB211-Trent 800 Series Turbofan Engines
Superseded. A later AD replaced this one: AD 2017-08-11. Comply with the one in force.
This AD applies to Rolls-Royce plc (RR) RB211-Trent 895-17, 892-17, 892B-17, 884-17, 884B-17, 877-17, and 875-17 turbofan engines.
We are superseding an existing airworthiness directive (AD) for all RR RB211-Trent 800 series turbofan engines. That AD currently requires removal from service of certain critical engine parts based on reduced life limits. This new AD reduces the life limits of additional critical engine parts. This AD was prompted by RR reducing the life limits of additional critical engine parts. We are issuing this AD to prevent the failure of critical rotating parts, which could result in uncontained failure of the engine and damage to the airplane.
Compliance is required within 30 days after the effective date of this AD, unless already done.
(1) After the effective date of this AD, remove from service the parts listed in Table 1 of this AD before exceeding the new life limit indicated:
| Part nomenclature | Part No. (P/N) | Life in standard duty cycles | Life in cycles using the HEAVY profile |
|---|---|---|---|
| (i) Intermediate-pressure (IP) Compressor Rotor Shaft | FK24100 | 8,140 | 8,140 |
| (ii) IP Compressor Rotor Shaft | FK24496 | 8,860 | 8,180 |
| (iii) High-pressure (HP) Compressor Stage 1 to 4 Rotor Discs Shaft | FK24009 | 4,560 | 4,460 |
| (iv) HP Compressor Stage 1 to 4 Rotor Discs Shaft | FK26167 | 6,340 | 6,000 |
| (v) HP Compressor Stage 1 to 4 Rotor Discs Shaft | FK32580 | 8,550 | 6,850 |
| (vi) HP Compressor Stage 1 to 4 Rotor Discs Shaft | FW11590 | 8,550 | 6,850 |
| (vii) HP Compressor Stage 1 to 4 Rotor Discs Shaft | FW61622 | 8,550 | 6,850 |
| (viii) HP Compressor Stage 5 and 6 Discs and Cone | FK25230 | 5,000 | 5,000 |
| (ix) HP Compressor Stage 5 and 6 Discs and Cone | FK27899 | 5,000 | 5,000 |
| (x) IP Turbine Rotor Disc | FK21117 | 11,610 | 10,400 |
| (xi) IP Turbine Rotor Disc | FK33083 | 0 | 0 |
After the effective date of this AD, do not install any IP turbine rotor discs, P/N FK33083, into any engine.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Engines
