Service difficulty report · Fuse · Boeing 747422

Difficulty date
February 16, 2011
Submitted
March 4, 2011
Operation
Air carrier
Aircraft
N179UA
Make and model
Boeing 747422
Aircraft serial
25158
Aircraft time
82,829 hours, 10,095 cycles
Engine
Pwa PW4056
Part
Fuse
Part number
FU305
Condition
Faulty
Location
Emergency Lights
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

CHECK ALL EMERGENCY LIGHTS. REPLACED F3 AND F4 FUSES ON POWER SUPPLY M7919 AND F4 FUSE ON POWER SUPPLY M7920, ALL EMERGENCY LIGHTS CHECKED GOOD ON NR 2459N00002.