# SDR CALA2016042895319

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 26, 2016
- Submitted: April 28, 2016
- Operation: Air carrier
- Aircraft: [N667UA](https://openairdocs.org/aircraft/N667UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 29239
- Aircraft time: 63,696 hours, 15,445 cycles
- Engine: Pwa PW4056
- System (JASC): [5247 · Auxiliary Power Unit (APU) Doors](https://openairdocs.org/jasc/5247)
- Part: Skin
- Condition: Corroded
- Location: Apu Door
- 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/CALA2016042895319

## Discrepancy

CORROSION ON LT APU DOOR SKIN AT 3RD RIB FWD LOWER END CORROSION, FOUND TO 100% MAT LOSS.  INSTALLED SKIN REPAIR IAW SRM 52-40-01 RPR 2.

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