# SDR UALA2010062102182

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 20, 2010
- Submitted: June 21, 2010
- Operation: Air carrier
- Aircraft: N173UA
- Make and model: Boeing 747422
- Aircraft serial: 24380
- Aircraft time: 78,822 hours, 8,954 cycles
- Engine: Pwa PW4056
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Delaminated
- Location: Lt Wing
- 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/UALA2010062102182

## Discrepancy

LEFT UPPER WING FIXED T/E PANEL HAS WATER INGRESS AND DELAMINATED IN 2 LOCATIONS. WATER INGESTING FOUND ON LT UPPER WING TE PANEL AT TWO LOCATIONS DIRECTLY BELOW PREVIOUS REPAIR. ONE AREA IS APPROX 10 X 6" AND THE OTHER IS ABOUT 3" DIAMETER, MARKED AREA ON LOWER SURFACE. TAP TEST ALSO FOUND DISBONDING AT PREVIOUS REPAIR ON UPPER WING SURFACE.  PANEL REPAIRED REF UA-EVA-73860.

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