What was found
MCP ALTITUDE WINDOW FREEZES UP WILL NOT LET PILOT SELECT DIFFERENT ALTITUDE INTERMITTENTLY. ACFT GROUNDED. ACCOMPLISHED FIM TASK 22-11, TASK 803, MODE CONTROL PANEL TEST PASSED NO FAULTS NOTED.
- Difficulty date
- May 18, 2015
- Submitted
- May 20, 2015
- Operation
- Air carrier
- Aircraft
- N594AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35191
- Aircraft time
- 27,506 hours, 8,397 cycles
- System (JASC)
- 2210 · Autopilot System
- Part
- Display
- Condition
- Malfunctioned
- Location
- Altitude
- Stage of operation
- NR
- 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.