What was found
MTX MSG SHORT TIME FAULT CODE 75-10452 "THE VBV POSITION SIGNALS DISAGREE" FOUND WHILE PERFORMING ASA TASK CARD 78273000 ON ENGINE #2. GROUNDED - YES. REMOVED AND REPLACED OB VSV ACTUATOR REF B737-900 AMM 75-32-02-400-802.
- Difficulty date
- September 17, 2022
- Submitted
- September 26, 2022
- Operation
- Air carrier
- Aircraft
- N428AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36353
- Aircraft time
- 23,913 hours, 7,494 cycles
- Engine
- Cfmint CFM567B27E
- System (JASC)
- 7530 · Compressor Bleed Control
- Part
- Vbv
- Part number
- 1226400
- Part serial
- YU0236742
- Condition
- Binding
- Location
- #2 Engine
- Part time
- 61,995 hours, 26,246 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.