# SDR ANCF200600013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2006
- Submitted: April 3, 2006
- Operation: Air carrier
- Aircraft: [N506NA](https://openairdocs.org/aircraft/N506NA), registered now
- Make and model: Boeing 757236
- Aircraft serial: 24771
- Aircraft time: 41,779 hours, 16,523 cycles
- Engine: Rroyce RB211535E437
- Engine time: 48,102 hours, 14,699 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Control Unit
- Part number: C8E3815
- Part serial: 3323
- Condition: Malfunctioned
- Location: Lt Engine
- Stage of operation: TO
- How discovered: O
- Nature of condition: O
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ANCF200600013

## Discrepancy

LEFT ENGINE N2 RPM WENT TO OVERSPEED.  IAW AMM 75-32-01 PAGE 401, REPLACED BLEED VALVE CONTROL UNIT.  OPS CHECK OK FOR SERVICE.

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