What was found
VNAV WILL NOT ENGAGE. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 22-11 TASK PROCEDURE TEST PASSED & NO FAULT NOTED, PERFORMED DFCS MODE CONTROL BUTTON TEST NO FAULT FOUND AMM 22-11-00, NO MX HISTORY PAST 30 DAYS.
- Difficulty date
- May 11, 2022
- Submitted
- May 13, 2022
- Operation
- Air carrier
- Aircraft
- N433AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41704
- Aircraft time
- 31,951 hours, 10,123 cycles
- System (JASC)
- 2210 · Autopilot System
- Part
- Autopilot Sys
- Part number
- UNKNOWN
- Condition
- Unresponsive
- Location
- Unknown
- Stage of operation
- NR
- 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.