# SDR UALA2012092405418

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 23, 2012
- Submitted: October 12, 2012
- Operation: Air carrier
- Aircraft: [N222UA](https://openairdocs.org/aircraft/N222UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30553
- Aircraft time: 47,531 hours, 5,736 cycles
- Engine: Pwa PW40903
- System (JASC): [2710 · Aileron Control System](https://openairdocs.org/jasc/2710)
- Part: Unknown
- Condition: Malfunctioned
- Location: Flaperon
- Stage of operation: NR
- 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/UALA2012092405418

## Discrepancy

FLAPERON ACT STATUS: MSG 27-10302 ACTIVE & LATCHED.  ACP'D FIM 27-11 TASK 816 STEP C.  FOUND WIRE CHECKS GOOD.  REF STEP C.(3), REPLACED ACE-L2 (M2712 2) PER MM27-02-02.  LRU REPLACEMENT TEST CHECKS OK BUT FLAPERON POSITION SYSTEM TEST FAILS WITH MSG 27-16039, FLAPERON PCU RIB RAM TRANSDUCER POS SIGNAL OUT OF  RANGE.  REF FIM 27-11 TASK 878.

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