Service difficulty report · Autopilot Sys · Boeing 737890
FAA SDR system
- Difficulty date
- November 21, 2013
- Submitted
- November 25, 2013
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35687
- Aircraft time
- 22,461 hours, 6,911 cycles
- Part
- Autopilot Sys
- Condition
- Malfunctioned
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH AUTOPILOT B ENGAGED AT FL 360 IN LNAV & VNAV F/O MAP DISPLAYED AMBER VTK FLAG. PFD SHOWED AMBER LANDING ALT. AUTOPILOT B COMMAND CHANGED. LNAV DISENGAGED. FOLLOWED QRH ITEMS. VTK & LDG ALT AMBER FLAGS WENT AWAY. ACFT GROUNDED. ACCOMPLISHED DFCS BITE, OPS CHECK NORMAL IAW AMM REF 22-11-00. CANNOT VERIFY DISCREPANCY. GROUND VERIFICATION SUCCESSFUL.