# SDR ASAA2019040228916

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2019
- Submitted: April 8, 2019
- Operation: Air carrier
- Aircraft: [N537AS](https://openairdocs.org/aircraft/N537AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35204
- Aircraft time: 28,523 hours, 8,282 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7312 · Fuel Heater](https://openairdocs.org/jasc/7312)
- Part: Fuel Heater
- Part number: 453328039
- Part serial: YB041780
- Condition: Leaking
- Location: Nr 1 Engine
- Part time: 28,547 hours, 8,293 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019040228916

## Discrepancy

#1 ENG FUEL DRIPPING FROM COWL @ SIX O'CLOCK UNABLE TO IDENTIFY SOURCE/DRAIN. GROUNDED - YES. ACCOMPLISHED ENGINE VENTS AND DRAINS INSPECTION, FOUND FUEL DRIPPING FROM FUEL/OIL HEAT EXCHANGER PAD DRAIN @ 4 DROPS/MIN REF B737-800 AMM TASK 71-71-00-200-801-F00. REMOVED AND REPLACED THE MAIN OIL/FUEL HEAT EXCHANGER PER AMM 79-21-02/400. COMPLETED SERVO FUEL HEATER INSTALLATION TEST REF AMM SUBTASK 73-11-07-720-001-F00 AND TASK 71-00-00-800-811-F00. NO LEAKS NOTED.

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