# SDR CALA2026020513593

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 29, 2025
- Submitted: February 5, 2026
- Operation: Air carrier
- Aircraft: [N75851](https://openairdocs.org/aircraft/N75851), registered now
- Make and model: Boeing 757324
- Aircraft serial: 32810
- Aircraft time: 69,801 hours, 22,749 cycles
- Engine: Rroyce RB211535E4
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Blade
- Part number: FW12308
- Part serial: RGH29742
- Condition: Damaged
- Location: Eng 2
- Part time: 62,677 hours, 17,027 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: C, R
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026020513593

## Discrepancy

DURING CLIMB OUT AT 1500 FT. BIRDSTIKE RT ENG,  ENG POWER SURGE WITH VIBRATION.  PREFORMED FIM 71-05/801.  NR 2 ENG IP2S, IP4S, & IP6S BOROSCOPE PLUGS REMOVED IAW AMM 72-00-00-846-137-R04 FOR FIM 71-05/801.  PERFORMED TAP TEST INSPECTION OF LP COMPRESSOR ROTOR BLADES IAW MM 72-31-13-601. FOUND BLADES 20,21, & 22 BAD.   BOROSCOPE OF  HP, IP & LP TURBINES FOR SIGNS OF INTERNAL DAMAGE IAW AMM 71-00-00-206-007-R00. POWER PLANT (AFTER SURGE) INSPECTION. PERFORMED THE FOLLOWING INSPECTIONS LP COMPRESSOR CASE AND OUTLET GUIDE VANES, LP COMPRESSOR INLET ROTATING FAIRING, EXHAUST PLUG, TURBINE EXHAUST SYSTEM, IP & HP VALVES IAW FIM 71-05, FAULT TREE 801, BLOCK 1.  PERFORMED ON NR 2 ENG AFTER A SURGE INSPECTION ON HP1-6 COMPRESSOR STAGES ON BLADES,EXMINED HP COMPRESSOR  ROTOR PATH LINNER 1-4, EXAMINED IP COMPRESSOR BLADES STAGE 1-6, NO DEFECTS NOTED IAW 71-00-00-206-007.  PERFORMED BOROSCOPE INSPECTION OF NR 2 ENG DUE TO BIRDSTRIKE. PERFORMED A HPT INSPECT IAW 72-00-00-206-167-R02 & 72-00-00-200-802-R02,  INSP  IP TURBINE IAW 72-00-00-206-173-R02,  INSP LOW PRESSURE TURBINE IAW 72-00-00-206-1. LOGS 7776496, 7776526, AND 7776519 FOR BLADE REPLACEMENT. LOG 7800385 FOR ANNULUS FORMER PANEL REPLACEMENTS. LOG FOR 7823404 FOR TEST 6 VIBRATION SURVEY.  ENGINE RUN CKD NORMAL.

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