# SDR 2026FA0000688

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2026
- Submitted: September 10, 2026
- Operation: General aviation
- Engine: Rroyce RB211TRENT77
- Engine time: 30,993 hours, 5,992 cycles
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Housing
- Part number: FW50489
- Part serial: GB21448
- Condition: Unserviceable
- Location: Engine
- Part time: 30,993 hours, 5,992 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000688

## Discrepancy

THE INTERMEDIATE PRESSURE COMPRESSOR (IPC) MODULE FOR ESN 42642 WAS RECEIVED FOR INSPECTION AND REPAIR UNDER WORKSCOPE REFERENCE NO. EWW/2026/T700/64/ PO# 5006402473 TO PERFORM LEVEL 2 MAINTENANCE (RELINE ALL LINERS). 
DURING THE IPC MODULE MAIN STRIP ON THE 18TH OF AUGUST 2026 AT THE TRENT 700 ENGINE MODULE OVERHAUL (EMOH), IT WAS OBSERVED THAT A CRACK AND RELEASED / MISSING MATERIAL WERE IDENTIFIED ON THE FRONT BEARING HOUSING (FBH), PART NUMBER: FW50489, SERIAL NUMBER: GB21448.   THE RELEASED MATERIAL DAMAGED MULTIPLE DOWNSTREAM COMPONENTS, SPECIFICALLY THE IPC ROTOR SHAFT CONICAL FACE (ZONE A), THE FRONT STUB SHAFT REAR EDGE SEAL FIN, THE VARIABLE INLET GUIDE VANE (VIGV) INNER SHROUD, AND THE REAR OUTER SEAL CARRIER.

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