What was found
FOUND FMC SHORT TIME FAULTS 75-10452 AND 75-20452, VBV POSITION SIGNALS DISAGREE. GROUNDED - YES. REMOVED AND REPLACED #2 ENG L/H VBV ACTUATOR REF B737-900 AMM 75-32-02. OPS CHECK, LEAK CHECK GOOD.
- Difficulty date
- October 21, 2022
- Submitted
- October 25, 2022
- Operation
- Air carrier
- Aircraft
- N428AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36353
- Aircraft time
- 24,190 hours, 7,584 cycles
- Engine
- Cfmint CFM567B27E
- System (JASC)
- 7530 · Compressor Bleed Control
- Part
- Actuator
- Part number
- 7074300
- Part serial
- YU020514N
- Condition
- Faulty
- Location
- #2 Engine
- Part time
- 1,524 hours, 579 cycles
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.