Service difficulty report · Fan · Boeing 747451

Difficulty date
May 11, 2010
Submitted
May 12, 2010
Operation
Air carrier
Aircraft
N669US
Make and model
Boeing 747451
Aircraft serial
24224
Aircraft time
85,325 hours, 10,461 cycles
Part
Fan
Condition
Malfunctioned
Location
Crew Rest
Stage of operation
CR
How discovered
O
Nature of condition
B
Precautionary procedure
O

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

What was found

DURING CRUISE, F/A REPORTED A STRONG BURNING SMELL IN THE F/A BUNK. CREW FOLLOWED QRM AND SHUT OFF ALL RECIRC FANS. SMELL DISAPPEARED. MX FOUND THE CREW REST SUPPLY FAN CIRCUIT BREAKER OUT AND REPLACED THE SUPPLY FAN. OPS TEST WAS GOOD.