# SDR UIEA200400117

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 25, 2004
- Submitted: August 16, 2004
- Operation: Air carrier
- Aircraft: [N412MC](https://openairdocs.org/aircraft/N412MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 30559
- Engine: Ge CF680C2*
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Packing
- Part number: 95272DA10053
- Condition: Damaged
- Location: Nr 4 Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA200400117

## Discrepancy

EICAS MESSAGE 'FUEL IMB' VISUALLY NOTED FUEL LEAK FROM NR 4 ENGINE.  ACCOMPLISHED SHUTDOWN PROCEDURES FOR NR 4 ENGINE.  TROUBLESHOT FOUND NR 4 ENGINE HMU PERFORMANCE PACKING BADLY DAMAGED. PACKING REPLACED IAW MM 73-21-14.  GROUND RUN FOR LEAK CHECK TEST 2, ECU ACTUATOR GROUND TEST 12, AND IDLE LEAK CHECK TEST 3 IAW MM 71-00-00 PAGE 501, ALL FOUND NORMAL.  A/C DIVERTED TO BKK.  (M)

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