Service difficulty report · Valve · Boeing 727247

Difficulty date
May 21, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N208UP
Make and model
Boeing 727247
Aircraft serial
21701
Engine
Pwa JT8D15
Part
Valve
Part number
626447
Condition
Malfunctioned
Location
Nr 1 Engine
Stage of operation
CL
Nature of condition
N
Precautionary procedure
A, E

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

What was found

INSPECTION TYPE:N/A ON TAKEOFF ABOVE 80 KTS T6 NR 1 ENGINE OIL PRESSURE WENT ABOVE THE RED LINE TO 65 PSI. WHEN THRUST WAS REDUCED TO CLIMB POWER, T6 OIL PRESS REMAINED ABOVE THE RED LINE UNTIL POWER WAS REDUCED BELOW 1.5 EPR. OIL PRESS REMAINED BELOW THE THE RED LINE UNTIL BLOCK TURN BACK WAS ACCOMPLISHED. REPLACED THE OIL PRESSURE TRANSMITTER AND OIL PRESSURE RELIEF VALVE PER MM 79-30-86 AND 79-33-00. RAN NR 1 ENGINE T/O POWER PER MM 71-00-86 OIL PRESS REMAINED WITHIN OIL PRESS LIMITS OF 45-55 PSI.