Service difficulty report · Fan · Boeing 74747UF

Difficulty date
May 24, 2010
Submitted
May 26, 2010
Operation
Air carrier
Aircraft
N408MC
Make and model
Boeing 74747UF
Aircraft serial
29261
Aircraft time
49,342 hours, 7,831 cycles
Part
Fan
Part number
4100149C
Part serial
1248A
Condition
Failed
Part time
49,342 hours, 7,831 cycles
Stage of operation
CL
How discovered
O
Nature of condition
G, J
Precautionary procedure
B, G, A

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

What was found

UPON CLIMB OUT; CREW EXPERIENCED SEVERAL EICAS MESSAGES: EQUIPMENT COOLING LOW FLOW, OXYGEN ON AND CABIN WARNING (DEPRESSURIZATION). (FOUND E/E COOLING FAN BURST, DAMAGING THE ACFT FUSELAGE. R & R EE COOLING SUPPLY FAN, EE COOLING EXHAUST VALVE AND INTERNAL SUPPLY DUCTS. COMPLIED WITH EO'S FOR REPAIR OF ACFT STRUCTURE)

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