# SDR ASMF202006019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 18, 2020
- Submitted: June 3, 2020
- Operation: Air carrier
- Aircraft: [N368AR](https://openairdocs.org/aircraft/N368AR), registered now
- Make and model: Boeing 737-86J
- Registry model: [Boeing 737-86J](https://openairdocs.org/model/boeing-737-86j) (OpenAirDocs)
- Aircraft serial: 36880
- Aircraft time: 29,422 hours, 12,597 cycles
- Engine: Cfmint CFM567B273
- System (JASC): [7312 · Fuel Heater](https://openairdocs.org/jasc/7312)
- Part: Fuel Heater
- Part number: 457311382
- Part serial: EM1618559
- Condition: Leaking
- Location: Lt Engine
- Part time: 29,422 hours, 12,597 cycles
- 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/ASMF202006019

## Discrepancy

DURING MAINTENANCE PROGRAM CHECK, IT WAS DETECTED A LEFT ENGINE FUEL LEAK.  MAINTENANCE PERSONNEL PERFORMED REVISION, DETECTING FUEL LEAK IN THE FUEL HEATER SERVO.  THE LT HEATER SERVO FUEL WAS REPLACED IAW AMM 79-21-02, TESTED CORRECT.

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