# SDR UIEA2020102602310

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 2020
- Submitted: October 29, 2020
- Operation: Air carrier
- Aircraft: [N471MC](https://openairdocs.org/aircraft/N471MC), registered now
- Make and model: Boeing 747412
- Aircraft serial: 26557
- Aircraft time: 80,730 hours, 12,866 cycles
- Engine: Pwa PW4056
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- Stage of operation: DE
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2020102602310

## Discrepancy

SMELL OF ENGINE OIL DURING ENGINE START TAXI, CLIMB, AND DESCENT.  CONDUCTED INSPECTION OF OIL/LEAKS ON ALL 4 ENGINES.  RAN ALL 4 ENGINES INDIVIDUALLY WITH ALL 3 PACKS ON, NO ODORS OBSERVED IN F/D, CREW REST, GALLEY OR MAIN DECK NOTED DURING ENGINE RUN, IAW AMM 71-10-00.

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