Service difficulty report · Gearbox · Boeing 7472D3B

Difficulty date
April 22, 2005
Submitted
May 6, 2005
Operation
Air carrier
Aircraft
N505MC
Make and model
Boeing 7472D3B
Aircraft serial
21251
Engine
Ge CF650E2
Part
Gearbox
Condition
Seized
Location
Nr 2 Engine
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

DURING CRUISE ENGINE NR 2 FUEL FLOW BEGAN FLUCTUATING FOR 30 SECONDS, THEN THE ENGINE SHUTDOWN WITH THE FOLLOWING INDICATIONS. N1=26.1 PERCENT, EGT 0.0, N2 0.0, OIL PRESSURE 0.0, OIL QUANTITY 3.7 GALLONS, AND FUEL FLOW WAS 1.095. ENGINE WAS WINDMILLING 3 HOUR 45 MINUTES. REMOVED AND REPLACED NR 2 ENGINE IAW MM. PERFORMED TEST NR 3 AND 8. FOUND ALL PARAMETERS WITHIN LIMITS. (K)

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