# SDR UALA2011112706464

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 26, 2011
- Submitted: November 30, 2011
- Operation: Air carrier
- Aircraft: N174UA
- Make and model: Boeing 747422
- Aircraft serial: 24381
- Aircraft time: 85,080 hours, 9,543 cycles
- Engine: Pwa PW4056
- System (JASC): [5244 · Accessory Compartment Doors](https://openairdocs.org/jasc/5244)
- Part: Skin
- Condition: Cracked
- Location: Apu Battery Door
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011112706464

## Discrepancy

APU BATTERY ACCESS DOOR AFT EDGE EXTERIOR SKIN CRACKED.  MAJOR REPAIR ACCOMPLISHED.  REMOVED DAMAGE, INSTALLED REPAIR DOUBLER REF AMECO EN 747EN-52-0051 & FAA FORM 8100-9.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.