Service difficulty report · Unknown · Boeing 747422

Difficulty date
March 15, 2007
Submitted
April 17, 2007
Operation
Air carrier
Aircraft
N128UA
Make and model
Boeing 747422
Aircraft serial
30023
Aircraft time
27,855 hours, 3,453 cycles
Engine
Pwa PW4056
System (JASC)
5200 · Doors
Part
Unknown
Condition
Unknown
Location
Arming Handle
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DOOR 3L WILL NOT ARM. CYCLED ARMING HANDLE, DOOR ARMS NORMALLY. UNABLE TO DUPLICATE PROBLEM. SUSPECT F/A TECHNIQUE PROBLEM.