What was found
ENG #1 SHORT TERM FAULT 75-30401. VSV POSITION SIGNALS DISAGREE. DEFER PER TC 78273000. GROUNDED - YES. REMOVED & REPLACED #1 ENG RH & LH VSV ACTUATORS & BELLCRANK ASSYS REF B737-800 AMM 75-31-01, AMM 75-32-00 & EA 800-72EA-24100.
- Difficulty date
- December 25, 2021
- Submitted
- January 5, 2022
- Operation
- Air carrier
- Aircraft
- N506AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35690
- Aircraft time
- 49,317 hours, 14,889 cycles
- Engine
- Cfmint CFM567B27
- System (JASC)
- 7530 · Compressor Bleed Control
- Part
- None
- Part number
- 1211313010
- Part serial
- AH875
- Condition
- Faulty
- Location
- #1 Engine
- Part time
- 11,200 hours, 3,195 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.