Service difficulty report · Sign · Boeing 747422

Difficulty date
May 1, 2007
Submitted
May 8, 2007
Operation
Air carrier
Aircraft
N187UA
Make and model
Boeing 747422
Aircraft serial
26877
Aircraft time
57,911 hours, 6,964 cycles
Engine
Pwa PW4056
Part
Sign
Condition
Intermittent
Location
Cabin
Stage of operation
IN
How discovered
C
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

UPPER DECK DOORS EXIT SIGNS INTERMITTENTLY FLASHING. OPS CHECKED EMERGENCY LIGHT SYSTEM. CHECKS OK.