What was found
WHILE ACCOMPLISHING T/C 78273000, FOUND NR 1 ENGINE FAULT 73-10341, THE FMV POS SIGNAL IS OUT-OF-RANGE, SHORT TIME FAULT. ACFT GROUNDED. REPLACED HMU IAW T/C N8473000 & N8473001. REPAIR CONFIRMATION GOOD.
- Difficulty date
- August 11, 2016
- Submitted
- August 15, 2016
- Operation
- Air carrier
- Aircraft
- N577AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35186
- Aircraft time
- 35,990 hours, 10,707 cycles
- Engine
- Cfmint CFM567B27
- System (JASC)
- 7320 · Fuel Controlling System
- Part
- Hmu
- Part number
- 442369
- Part serial
- BECW5437
- Condition
- Failed
- Location
- Nr 1 Engine
- Part time
- 29,728 hours, 9,658 cycles
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.