# SDR SWAA063981

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2006
- Submitted: October 16, 2006
- Operation: Air carrier
- Aircraft: [N388SW](https://openairdocs.org/aircraft/N388SW), registered now
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 26591
- Aircraft time: 41,885 hours, 35,734 cycles
- Engine: Ge CFM563B1
- System (JASC): [7530 · Compressor Bleed Control](https://openairdocs.org/jasc/7530)
- Part: Shaft
- Part number: 154BY
- Part serial: 06259
- Condition: Broken
- Location: Vbv Motor
- Stage of operation: CL
- How discovered: O
- Nature of condition: R
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA063981

## Discrepancy

WHILE CLIMBING OUT OF PHX ABOVE FL 250, NR 1 ENGINE WAS UNABLE TO REACH CLIMB N1 POWER SETTING WITH PMC OFF.  THROTTLE WAS ALL THE WAY TO FWD STOP.  REMOVED AND REPLACED BROKEN VBV MOTOR MAIN SHAFT PER MM.

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