# SDR ASAA2022041438020

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2022
- Submitted: April 15, 2022
- Operation: Air carrier
- Aircraft: [N453AS](https://openairdocs.org/aircraft/N453AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36354
- Aircraft time: 31,050 hours, 9,833 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7310 · Engine Fuel Distribution](https://openairdocs.org/jasc/7310)
- Part: Fuel Heater
- Part number: 457311382
- Part serial: DK274751W
- Condition: Leaking
- Location: #1 Engine
- Part time: 31,050 hours, 9,833 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/ASAA2022041438020

## Discrepancy

DURING IDLE LEAK CHECK OF THE #1 ENG  FOUND FUEL LEAKING FROM THE FUEL HEATER SERVO, CAP. GROUNDED - YES. REMOVED AND REPLACED FUEL HEATER SERVO REF B737-900 AMM 73-11-07-400-801-F00/AMM 73-11-07-400-801-F00. NO LEAKS NOTED.

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