# SDR CALA0500212

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2005
- Submitted: July 5, 2005
- Operation: Air carrier
- Aircraft: [N16234](https://openairdocs.org/aircraft/N16234), registered now
- Make and model: Boeing 737824
- Aircraft serial: 28946
- Aircraft time: 19,026 hours, 6,863 cycles
- Engine: Ge CFM56*
- Engine time: 19,026 hours, 6,863 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Malfunctioned
- Location: Nr 2
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A, F, D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA0500212

## Discrepancy

LOUD THUMP HEARD AFTER T/O. ALL ENG IND`S NORMAL THROUGH CLIMB-OUT TO 10,000 FT.  PASSING 10,000 FT SEVERAL SUCCESSIVE THUMPS WITH NO ABNORMAL ENG IND`S.  A/C RETURNED WITH NORMAL LANDING. ENG SHUTDOWN AFTER LANDING. L-1 AND L-2 DOOR SLIDES DEPLOYED & PAX`S EVACUATED AS PRECAUTION DUE TO REPORTS OF POSSIBLE SMOKE ON NR 2 ENG.  BOTH FIRE BOTTLES BLOWN.  INITIAL EXAM OF NR 2 ENG FOUND NO EVIDENCE OF FIRE DAMAGE OR UNCONTAINED FAILURE.  NR 2 ENG R & R.  OPS CHKS GOOD. IN ADDITION, L-1 AND L-2 DOOR SLIDES AND FIRE BOTTLES REPLACED. VSV STAGE ONE ROTATED OUT OF TIMING(NUT BACKED OFF) RESULTING IN VSV FRACTURE. OUT OF TIME VSV INDUCED HPC FAILURE.

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