What was found
#1 ENGINE SPAR VALVE CLOSED LIGHT IS ILLUMINATED BRIGHT BLUE WITH START LEVER IN CUTOFF POSITION INDICATING SPAR VALVE STUCK IN THE IN TRANSIT POSITION. GROUNDED - YES. R&R #1 SPAR VALVE OPS CHECK NORMAL REF B737-800 AMM 28-22-11.
- Difficulty date
- June 10, 2019
- Submitted
- June 11, 2019
- Operation
- Air carrier
- Aircraft
- N533AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35201
- Aircraft time
- 33,060 hours, 9,626 cycles
- System (JASC)
- 2820 · Aircraft Fuel Distribution System
- Part
- Valve
- Part number
- MA30A1017
- Part serial
- AA587838
- Condition
- Stuck
- Location
- Left Wing Front
- Part time
- 10,881 hours, 3,102 cycles
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.