# SDR UIEA2011122900739

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 29, 2011
- Submitted: December 30, 2011
- Operation: Air carrier
- Aircraft: [N429MC](https://openairdocs.org/aircraft/N429MC), registered now
- Make and model: Boeing 747481
- Aircraft serial: 24833
- Aircraft time: 86,077 hours, 11,895 cycles
- System (JASC): [5751 · Ailerons](https://openairdocs.org/jasc/5751)
- Part: Skin
- Condition: Delaminated
- Location: Rt Aileron
- 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/UIEA2011122900739

## Discrepancy

DURING MX WALKAROUND MX FOUND DAMAGE TO THE RT INBD AILERON T/E WITH DELAMINATION DAMAGE, MEASURING 2.0" X 4.0".  THE DAMAGE EXCEEDS THE LIMITS OF THE SRM 57-60-01, FIG 101 ALLOWABLE DAMAGE 1.  (DISPOSITION IS TO PERFORM A TIME LIMITED REPAIR AS DESCRIBED IN PART 1 WORK INSTRUCTIONS; DVI EVERY 1 FLIGHT CYCLE; AND PERMANENT REPAIR PRIOR TO THE ACCUMULATION OF 50 FC (FLIGHT CYCLES) AFTER PART 1.)

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