What was found
COCKPIT DOOR DENY HORN DOES NOT SILENCE WHEN DENY IS SELECTED. REPLACED PEDESTAL PANEL P8, OPS CHECKED PER MM AND CHECKED DENY MODE TEST PER MM 52-51-00 PG 505 PASSED. TESTED PER MM 52-51-00 PG 501 PASSED.
- Difficulty date
- August 18, 2012
- Submitted
- September 14, 2012
- Operation
- Air carrier
- Aircraft
- N178UA
- Make and model
- Boeing 747422
- Aircraft serial
- 24385
- Aircraft time
- 91,021 hours, 10,978 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 5250 · Fixed Inner Doors
- Part
- Control Panel
- Part number
- 233U6202320
- Condition
- Faulted
- Location
- Cockpit Door
- Stage of operation
- NR
- 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.