# SDR UALA2009122303982

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 23, 2009
- Submitted: December 23, 2009
- Operation: Air carrier
- Aircraft: N173UA
- Make and model: Boeing 747422
- Aircraft serial: 24380
- Aircraft time: 76,762 hours, 8,714 cycles
- Engine: Pwa PW4056
- System (JASC): [5414 · Nacelle/Pylon, Plate/Skin](https://openairdocs.org/jasc/5414)
- Part: Skin
- Condition: Cracked
- Location: Nr 4 Pylon
- 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/UALA2009122303982

## Discrepancy

NR 4 PYLON SKIN CRACKED AT ACCESS COVER CUT OUT FOR PANEL 482ER.  MAJOR REPAIR ACCOMPLISHED: INSTALLED DOUBLER & TRIPLER REPAIR.

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