# SDR ASAA2016032516098

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2016
- Submitted: March 28, 2016
- Operation: Air carrier
- Aircraft: [N588AS](https://openairdocs.org/aircraft/N588AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35685
- Aircraft time: 32,159 hours, 9,766 cycles
- System (JASC): [7920 · Engine Oil Distribution (Airframe Furnished)](https://openairdocs.org/jasc/7920)
- Part: Fuel/Oil Cooler
- Part number: 453328039
- Part serial: YB029715
- Condition: Failed
- Location: Nr 2 Engine
- Part time: 32,159 hours, 9,766 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016032516098

## Discrepancy

DURING WALKAROUND, FOUND FUEL DRIPPING FROM NR 2 ENGINE FUEL/OIL HEAT EXCHANGER DRAIN LINE AT 40 DROPS A MINUTE.  ACFT GROUNDED. REMOVED FUEL OIL HEAT EXCHANGER AND FUEL SERVO HEATER REF AMM 79-71-02-000-801.  INSTALLED NEW MAIN FUEL HEAT EXCHANGE REF AMM 79-21-02-400-801-F00 AND COMPLETED STEPS 3.F, 1 & 2 & 3.G. 1-4. REINSTALLED SERVO FUEL HEATER ON NR 2 ENGINE, REF AMM 73-11-07-400-801-F00 AND COMPLETED STEPS 3. F. 1- 5 C. ACCOMPLISHED POWERPLANT IDLE POWER LEAK CHECK, REF AMM 71-00-00-700-801-F00 TEST 3A. NO LEAKS FOUND.  COMPLETED AMM 73-11-07-400-801-F00, STEPS F-G AND 79-21-02-400-801-F00 STEPS H-I.

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