# SDR ASAA2023050143089

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 2023
- Submitted: May 3, 2023
- Operation: Air carrier
- Aircraft: [N477AS](https://openairdocs.org/aircraft/N477AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40716
- Aircraft time: 28,282 hours, 8,762 cycles
- System (JASC): [7310 · Engine Fuel Distribution](https://openairdocs.org/jasc/7310)
- Part: Fuel Heater
- Part number: 457311382
- Part serial: YB053171
- Condition: Leaking
- Location: #2 Engine
- Part time: 28,282 hours, 8,762 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/ASAA2023050143089

## Discrepancy

DURING ACTUATORS TEST ON ENGINE 2 FOUND SERVO FUEL HEATER LEAKING. GROUNDED - YES. R/R SERVO FUEL HEATER PER B737-900 AMM 73-11-07-400-801-F00.

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