Service difficulty report · Gearbox · Boeing 7373G7

Difficulty date
May 1, 2011
Submitted
May 4, 2011
Operation
Air carrier
Aircraft
N156AW
Make and model
Boeing 7373G7
Aircraft serial
23778
Engine
Cfmint CFM563B1US
Part
Gearbox
Part number
3353001060
Part serial
63X721395
Condition
Failed
Location
Rt Engine
Part time
64,615 hours, 45,162 cycles
Component
Engine · Cfmint · CFM563B1
Component part number
CFM563B1QEC300
Stage of operation
CR
How discovered
O
Nature of condition
J, Y
Precautionary procedure
A

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

What was found

LAS - DURING CRUISE, AT FL330, CREW REPORTED THE RIGHT ENGINE HAD FLAMED OUT AND THAT THEY RECIEVED A LOW FUEL FLOW INDICATION. CREW WAS UNABLE TO RESTART THE ENGINE. AN EMERGENCY WAS DECLARED AND THE FLIGHT DIVERTED TO LAS. FLIGHT LANDED WITHOUT FURTHER INCIDENT AND TAXIED TO THE GATE UNDER ITS OWN POWER ON REMAINING ENGINE. TOTAL SINGLE ENGINE TIME WAS REPORTED TO BE 5 MINUTES. MAINTENANCE FOUND THE RIGHT ENGINE MAIN ACCESSORY GEARBOX HAD AN UNCONTAINED FAILURE WHICH WAS CONTAINED TO THE INSIDE OF THE ENGINE COWLING. REMOVED AND REPLACED RIGHT ENGINE MAIN ACCESSORY GEARBOX ALONG WITH ENGINE PER JOB CARD 03L50671001. OPERATIONAL CHECK AND LEAK CHECK GOOD.

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