# SDR 02070901

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 9, 2002
- Submitted: July 10, 2002
- Operation: Air carrier
- Aircraft: [N526NA](https://openairdocs.org/aircraft/N526NA), registered now
- Make and model: Boeing 757236
- Aircraft serial: 24794
- Aircraft time: 46,826 hours, 18,130 cycles
- Engine: Rroyce RB211535E4
- Engine time: 42,760 hours, 15,838 cycles
- System (JASC): [7532 · Compressor Bleed Valve](https://openairdocs.org/jasc/7532)
- Part: Control Unit
- Part number: C8E389
- Part serial: 2775
- Condition: Malfunctioned
- Location: Bleed Valve
- Stage of operation: TX
- How discovered: O
- Nature of condition: Y, J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/02070901

## Discrepancy

AFTER DISCONNECT, BEGAN TO TAXI, HEARD MUFFLED POPPING NOISE.  LEFT ENGINE QUIT. RETURNED TO GATE.  BVCU BITE FAILED, BVCU REMOVED AND REPLACED. FUNCTIONAL CHECK GOOD AS PER M/M.  AIRCRAFT RETURNED TO SERVICE.

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