# SDR ASAA2017081121623

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 2017
- Submitted: August 14, 2017
- Operation: Air carrier
- Aircraft: [N442AS](https://openairdocs.org/aircraft/N442AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43293
- Aircraft time: 14,704 hours, 4,837 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7310 · Engine Fuel Distribution](https://openairdocs.org/jasc/7310)
- Part: Line
- Part number: 3400162510
- Condition: Leaking
- Location: Nr 1 Fuel
- Stage of operation: IN
- How discovered: 9
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017081121623

## Discrepancy

FUEL LEAK FROM NR 1 ENGINE, FUEL DRIPPING FROM FAN COWL  ON ARRIVAL. ACFT GROUNDED. ALTERNATE DEACTIVATION PROCEDURES USED PER MPM CHAPTER 5 TABLE 3 ITEM 9.  FOUND FUEL PRESENT ON LINE COMING FROM OUT OF FUEL PUMP,  LINE WET UNDER CLAMP,  CLEANED AREA,  IDLE RAN ENGINE.  NO LEAKS OBSERVED.  RAN ENGINE ABOVE 80% N1,  FOUND FUEL LEAKING FROM FUEL OUT TUBE AT THE FUEL OIL HEAT EXCHANGER FOR IDG. REMOVED AND REPLACED THE NR 1 ENGINE FUEL LINE FROM FUEL OUT TUBE AT THE FUEL OIL HEAT EXCHANGER AND IDG OIL COOLER IAW AMM 73-11-06-400-801-F00, STEP 3F.(2)(E), AND AMM 73-11-01-400-801-F00, STEPS 3.H(11) (O)1). GROUND RAN ENGS ABOVE 80% N1 AGAIN NO LEAKS NOTED.

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