What was found
ON PREFLIGHT FOUND NR 1 ENGINE FUEL VALVE CLOSED LIGHT ILLUMINATED BRIGHT BLUE. GROUNDED - YES. REMOVED AND REPLACED THE NR 1 ENGINE HMU IAW T/C N8473000 & T/C N8473001. ALTERNATE DEACTIVATION PROCEDURE REVERSED.
- Difficulty date
- August 9, 2017
- Submitted
- August 28, 2017
- Operation
- Air carrier
- Aircraft
- N594AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35191
- Aircraft time
- 36,035 hours, 10,833 cycles
- Engine
- Cfmint CFM567B27B3
- System (JASC)
- 7320 · Fuel Controlling System
- Part
- Hmu
- Part number
- 442369
- Part serial
- BECW4556
- Condition
- Failed
- Location
- Nr 1 Engine
- Part time
- 39,616 hours, 12,015 cycles
- Stage of operation
- TX
- 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.