# SDR UALA2011112106352

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 2011
- Submitted: November 23, 2011
- Operation: Air carrier
- Aircraft: N179UA
- Make and model: Boeing 747422
- Aircraft serial: 25158
- Aircraft time: 86,101 hours, 10,451 cycles
- Engine: Pwa PW4056
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Unknown
- Condition: Smoke
- Location: Nr 4 Engine
- Stage of operation: IN
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011112106352

## Discrepancy

AFTER ENGINE RUNS, NOTICED SMOKE COMING FROM THE INTERMEDIATE CASE AT THE 1 O`CLOCK POSITION ON NR 4 ENG.  RAN NR 4 ENGINE FOR 10 MINUTES, NO SMOKE DURING OR AFTER RUN.

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