Service difficulty report · Fuse · Boeing 747422

Difficulty date
September 27, 2013
Submitted
October 3, 2013
Operation
Air carrier
Aircraft
N107UA
Make and model
Boeing 747422
Aircraft serial
26900
Aircraft time
61,775 hours, 7,260 cycles
Engine
Pwa PW4056
Part
Fuse
Condition
Blown
Location
Power Supply
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

TWO OF FOUR EMERGENCY EXIT LIGHTS INOPERATIVE FOR RT SIDE OVER WING SLIDE. CHANGED POWER SUPPLY, REPLACED FUSES IN THE OLD POWER SUPPLY & REINSTALLED OLD POWER SUPPLY. OPERATIONS CHECKED RT EXTERIOR EGRESS EMERGENCY EXIT LIGHTS & ALL FOUR LIGHT ASSEMBLY OPERATIONS CHECKED GOOD.