Service difficulty report · Control Panel · Boeing 737890
FAA SDR system
- Difficulty date
- November 12, 2013
- Submitted
- November 15, 2013
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35191
- Aircraft time
- 21,814 hours, 6,693 cycles
- Part
- Control Panel
- Condition
- Malfunctioned
- Location
- Autopilot
- Part time
- 45,135 hours, 19,827 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOPILOT HAD TWO UNCOMMANDED DISENGAGEMENTS DURING CRUISE FLT IN SMOOTH CONDITIONS. ACFT GROUNDED. DFCS A&B LOGGED MULTIPLE MCP FAILURES FAULT MSG 22-11607. R & R MCP REF MM 22-11-34, OPS CHECK NORMAL. ACCOMPLISHED MCP LWMP CHECKS REF LWMP CHECKLIST MM 22-00-01,TESTS PASSED. ACFT UPGRADED TO CAT IIIA AUTOLAND & HGS.