# SDR ASAA2023071043975

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2023
- Submitted: July 12, 2023
- Operation: Air carrier
- Aircraft: [N533AS](https://openairdocs.org/aircraft/N533AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35201
- Aircraft time: 45,468 hours, 13,158 cycles
- System (JASC): [7300 · Engine Fuel and Control](https://openairdocs.org/jasc/7300)
- Part: Actuator
- Part number: MA30A1017
- Part serial: AA713051
- Condition: Failed
- Location: #1 Engine
- Part time: 12,402 hours, 3,531 cycles
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023071043975

## Discrepancy

WHEN #1 START LEVER RAISED TO IDLE NO FUEL FLOW SPAR VALVE, ENG VALVE BRIGHT BLUE. GROUNDED - YES. FOUND SPAR VALVE CLOSED LIGHT REMAINS BRIGHT FOUND MAIN MSG 73-31551 FUEL FLOW WAS NOT DETECTED DURING START ATTEMPT VISUALLY CONFIRMED THE MANUAL OVERRIDE HANDLE DID NOT MOVE FROM CLOSED TO OPEN POSITION. REF TAST 73-71 TASK 803, TASK 28-22 TASK 809, TASK 80-06 TASK 802 80081 07/10/23 REPLACED LH ACTUATOR OF THE SPAR VALVE OPS CHECK GOOD REF AMM 28-22-11 SEAMC ARON NOTIFIED 4 MIG 51A INSTALLED AND REMOVED SEE LOG PAGE 60709940 FOR FUEL PUMP REPLACEMENT.

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