# SDR ASMF202104002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 3, 2021
- Submitted: April 8, 2021
- Operation: Air carrier
- Aircraft: [N377AR](https://openairdocs.org/aircraft/N377AR), registered now
- Make and model: Boeing 737-86J
- Registry model: [Boeing 737-86J](https://openairdocs.org/model/boeing-737-86j) (OpenAirDocs)
- Aircraft serial: 37753
- Aircraft time: 34,749 hours, 15,883 cycles
- Engine: Cfmint CFM567B273
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Servo
- Part number: 457311382
- Part serial: YB052144
- Condition: Leaking
- Location: Right
- Part time: 20,858 hours, 8,011 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASMF202104002

## Discrepancy

AIRCRAFT RETURNED TO PLATFORM DUE TO DURING RIGHT ENGINE START, A FUEL LEAK WAS DETECTED IN THE RIGHT ENGINE. MAINTENANCE PERSONNEL PERFORMED REVISION, DETECTING LEAK FUEL BY SERVO FUEL HEAT IN THE RIGHT ENGINE; SO THE RIGHT ENGINE SERVO FUEL HEATER WAS REPLACED IAW AMM TASK 73-11-07-000/400-801-F00 AND RIGHT ENGINE WAS RUN IAW MM 71-00-00, TEST 3A, TESTED CORRECT

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