Service difficulty report · Gauge · Boeing 747123F

Difficulty date
November 26, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N673UP
Make and model
Boeing 747123F
Aircraft serial
20325
Engine
Pwa JT9D7AH
Part
Gauge
Condition
Malfunctioned
Location
Nr 3 Engine
Stage of operation
CR
Nature of condition
N
Precautionary procedure
A

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

What was found

NR 3 ENG OIL QTY 5.3 PRIOR TO START. 4.3 GAL ON POWER PUSH FOR T/O; DURING CLIMB TO A 26000 LEVEL OFF OIL QTY OBSERVED TO SLOWLY DROP TO 2.6. WHEN POWER REDUCED OIL STOPPED AT 2.6 UNTIL SHUT DOWN. OIL QTY THEN CLIMBED TO 4.5 AFTER SHUTDOWN 2 MIN. RESET C/B ON NR 3 ENG OIL QTY. NR 3 ENG OIL QTY GA SHOWS 5.4, UNABLE TO DUPLICATE ON GROUND. FOR T/S SWAPPED ENG OIL QTY GA 3 AND 2 . BOTH OIL QTY IND WORK OK PER MM 79-31-00