What was found
UNCOMMANDED DESCENT WITH NR 1 AUTOPILOT WHEN SLOWING AIRCRAFT IN VNAV ALT HOLD.
- Difficulty date
- February 4, 2017
- Submitted
- February 8, 2017
- Operation
- Air carrier
- Aircraft
- N944DN
- Make and model
- Doug MD9030
- Aircraft serial
- 53558
- Aircraft time
- 40,782 hours, 34,222 cycles
- System (JASC)
- 2210 · Autopilot System
- Part
- Autopilot Sys
- Condition
- Malfunctioned
- Stage of operation
- DE
- 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.