# SDR 2006UALA02195

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2006
- Submitted: November 27, 2006
- Operation: Air carrier
- Aircraft: [N171UA](https://openairdocs.org/aircraft/N171UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 24322
- Aircraft time: 65,133 hours, 7,953 cycles
- Engine: Pwa PW4056
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Damaged
- Location: Bs 2080 S35r
- 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/2006UALA02195

## Discrepancy

BS 2080 STR 35R EXTERNAL SKIN CORRODED AND .5" CRACK AT WASTE VENT OUTLET. INSTALLED REPAIR DOUBLER & TRIPLER PER SRM.  OK FOR SERVICE.  SUSPECT CORROSION RELATED TO VENT EMISSION & PRESSURIZATION CYCLES.

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