# SDR UALA2009040801004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2009
- Submitted: April 10, 2009
- Operation: Air carrier
- Aircraft: N178UA
- Make and model: Boeing 747422
- Aircraft serial: 24385
- Aircraft time: 78,521 hours, 9,602 cycles
- Engine: Pwa PW4056
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Dented
- Location: Fuselage
- 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/UALA2009040801004

## Discrepancy

FUSELAGE SKIN DENTED AT BS 2320-2340 STR 21R-22R.  MAJOR REPAIR ACCOMPLISHED.  REMOVED DAMAGE, INSTALLED EXTERNAL DOUBLER & REPLACED STRINGER 21 HAT SECTION.

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