Service difficulty report · Circuit Breaker · Boeing 747422

Difficulty date
November 14, 2010
Submitted
November 24, 2010
Operation
Air carrier
Aircraft
N180UA
Make and model
Boeing 747422
Aircraft serial
25224
Aircraft time
82,486 hours, 9,947 cycles
Engine
Pwa PW4056
Part
Circuit Breaker
Condition
Tripped
Location
P85 Panel
Stage of operation
TO
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

AT TAKEOFF HAD AN EICAS MESSAGE SAYING SMOKE 5R CREW REST BUT IT WENT OFF IN 30 SEC. THERE IS NO SMOKE IN REST AREA BUT ALL CHILLERS OUT IN AFT GALLEY. CHECKED GALLEY AND THERE IS A VERY SLIGHT ELECT ODOR. PRESS FAN RESET SW BELOW CREW REST TEMP SELECTOR PANEL, ALL RECIRCULATION FANS RETURNED TO NORMAL OPS. CREW FOUND CB AT P85 PANEL POPPED, OVERRRIDE 5 CREW REST FAN PWR AND ELECTED NOT TO RESET. 3 CHILLERS IN AFT GALLEY WAS NOT SUCCESSFUL ON THE RESET. OK TO CONT PER SAMC. RESET FAN RESET SWITCH AND CB RESET NOW OK. GALLEY CHILLER POWER RECOVERED AND REC FAN NORMAL. NO SMOKE NOTED.