Service difficulty report · Power Supply · Boeing 747422

Difficulty date
March 28, 2014
Submitted
March 31, 2014
Operation
Air carrier
Aircraft
N181UA
Make and model
Boeing 747422
Aircraft serial
25278
Aircraft time
93,340 hours, 11,207 cycles
Engine
Pwa PW4056
Part
Power Supply
Condition
Malfunctioned
Location
Emergency Lights
Stage of operation
IN
How discovered
V
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

ROWS 51 TO 61HJK EMERGENCY LIGHTS INTERMITTENT. LIGHTS ILLUMINATE WHEN SELECTED ON, INTERMITTENT FLASH WHEN SELECTED OFF, ADJACENT LIGHTS NORMAL. IAW CH1727 REPLACED POWER SUPPLY M6012 ABOVE DOOR 5RT, EEL PATH LIGHTS ROW 51HJK TO 61HJK CHECKED OK IAW WD33-51-63.