# SDR UALA2011091905036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 18, 2011
- Submitted: September 22, 2011
- Operation: Air carrier
- Aircraft: N175UA
- Make and model: Boeing 747422
- Aircraft serial: 24382
- Aircraft time: 83,209 hours, 9,441 cycles
- Engine: Pwa PW4056
- System (JASC): [7300 · Engine Fuel and Control](https://openairdocs.org/jasc/7300)
- Part: Unknown
- Condition: Leaking
- Location: Nr 3 Engine
- Stage of operation: IN
- How discovered: O
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011091905036

## Discrepancy

LEAK CHECK NR 3 ENGINE FUEL & OIL COOLER DUE TO OIL LEAK.  ACP LEAK CHECK NO LEAKS.  CLOSED REVERSER AND COWLS PER AMM.  FOUND FUEL LEAKING FROM WHERE COMBUSTION & EXHAUST CASE JOIN TOGETHER.  APPEARS TO BE INTERNAL.  NR 4 ENGINE REMOVED AND STARTED INSTALLATION.  FINISH BY STARTING AT PARG H STEP 4 (PG 409) TO END.  NEEDED TO REMOVE AND THEN REINSTALLED FUEL DISTRIBUTION VLV UP TO ITEM 3 PARA I STEP 7 PER AMM.  ENGINE RUN AND LEAK CHECK NEEDED.  MRDATA INPUT NEEDED.  MR73139 -39O (PARTIAL).  ACP ENG RUN AND LEAK CHECK.  NO LEAKS NOTED.  CLOSED REVERSERS & COWLS PER AMM.

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