What was found
LEVEL 1, AVIONCS FAN OVERHEAD, WARNING DISPLAYED DURING DESCENT. FOUND FWD GROUND CONDITIONED AIR FLAPPER STUCK OPEN, BINDING ON HINGE RETAINER. ADJUST HINGE RETAINER. FLAPPER OPS NORMAL REF MM 21-22-20.
- Difficulty date
- April 7, 2016
- Submitted
- April 8, 2016
- Operation
- Air carrier
- Aircraft
- N296UP
- Make and model
- Doug MD11F
- Aircraft serial
- 48474
- Aircraft time
- 77,353 hours, 12,555 cycles
- System (JASC)
- 2121 · Air Distribution Fan
- Part
- Flapper Valve
- Condition
- Stuck
- Location
- E/E Bay Fan
- Stage of operation
- DE
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.