Service difficulty report · Tube · Boeing 74746NF

Difficulty date
October 31, 2006
Submitted
November 1, 2006
Operation
Air carrier
Aircraft
N452PA
Make and model
Boeing 74746NF
Aircraft serial
30810
Aircraft time
24,804 hours, 4,262 cycles
Engine
Ge CF680C2*
Part
Tube
Part number
1978M64G01
Condition
Cracked
Location
Nr 3 Eng Oil
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
E

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

What was found

1.5 HOURS INTO FLIGHT, NR 3 ENGINE OIL DROPPED TO 6 QUARTS. REDUCED THRUST TO IDLE, OIL QUANTITY DROPPED TO 4 QUARTS. SHUTDOWN ENGINE. FOUND CRACKED OIL LINE TO LOW OIL PRESSURE SWITCH. REPLACED SAME MM 70-50-00, 71-00-00.

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