# SDR UALA2011050502199

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 2011
- Submitted: May 27, 2011
- Operation: Air carrier
- Aircraft: N181UA
- Make and model: Boeing 747422
- Aircraft serial: 25278
- Aircraft time: 82,330 hours, 10,088 cycles
- Engine: Pwa PW4056
- System (JASC): [5753 · Trailing Edge Flaps](https://openairdocs.org/jasc/5753)
- Part: Roller
- Condition: Out Of Tolerance
- Location: Nr 7 Flap
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011050502199

## Discrepancy

NR 7 FLAP TRACK SEQUENCE CARRIAGE, INBD ROLLER IS MISSING AND THE O-B ROLLER IS INSTALLED BACKWARDS.  REPLACED PER MM.

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