What was found
NR 1 ENGINE BITE TEST, FOUND SHORT TIME FAULT MESSAGE 75-30401 - THE VSV POSITION SIGNALS DISAGREE. ACFT GROUNDED. REMOVED AND REPLACED RIGHT VSV ACTUATOR IAW AMM 75-31-01. LEAK TESTED GOOD, ACTUATORS TESTED GOOD.
- Difficulty date
- March 21, 2017
- Submitted
- March 27, 2017
- Operation
- Air carrier
- Aircraft
- N508AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35691
- Aircraft time
- 33,092 hours, 9,966 cycles
- Engine
- Cfmint CFM567B27
- System (JASC)
- 7530 · Compressor Bleed Control
- Part
- Actuator
- Part number
- 1211313010
- Part serial
- APMRK643
- Condition
- Failed
- Location
- Nr 1 Engine
- Part time
- 33,149 hours, 9,979 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.