# SDR VNAA2011071500013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2011
- Submitted: July 15, 2011
- Operation: Air carrier
- Aircraft: N257PS
- Make and model: Cndair CL6002B19
- Aircraft serial: 7939
- Aircraft time: 16,935 hours, 17,602 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Bpsu
- Part number: 855D10015
- Part serial: 2534
- Condition: Failed
- Location: Te Flap
- Part time: 14,930 hours, 15,610 cycles
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VNAA2011071500013

## Discrepancy

CREW REPORTED FLAPS FAILURE WHEN FLAPS SELECTED FROM ZERO DEGREES TO EIGHT (8) DEGREES DURING APPROACH TO CLT.  AIRCRAFT LANDED IN CLT WITHOUT INCIDENT.  MAINTENANCE TROUBLESHOT FLAP SYSTEM, REMOVED AND REPLACED LEFT BPSU (BRAKE AND POSITION SENSOR UNIT) AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS.  AIRCRAFT RELEASED FOR SERVICE.

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