# SDR 2007UALA01632

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 24, 2007
- Submitted: May 29, 2007
- Operation: Air carrier
- Aircraft: [N219UA](https://openairdocs.org/aircraft/N219UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30551
- Aircraft time: 25,278 hours, 3,295 cycles
- Engine: Pwa PW4090
- Engine time: 27,426 hours, 3,849 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Stalled
- Location: Nr 2
- Stage of operation: CR
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA01632

## Discrepancy

CREW REPORTED A SURGE - STALL IN CRUISE (STEADY STATE) NR 2 ENG, "AUDIBLE" TO FLT AND CABIN CREW.    [07-17-07]  ENGINE REPLACED. TEARDOWN SHOWED HEAVY HPC BLADE AIRFOIL DAMAGE FROM THE 6TH STAGE AFT.  1/8TH  STAGE BLADE AIRFOIL WAS BROKEN OFF 1/2-INCH ABOVE THE PLATFORM.  THE DAMAGE RESULTED FROM THE LIBERATION OF 4 VARIABLE STATOR VANE INNER TRUNNION 'BUTTONS'.

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