Service difficulty report · Oil Press Sw · Boeing 747156

Difficulty date
November 20, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N134TW
Make and model
Boeing 747156
Aircraft serial
19958
Part
Oil Press Sw
Part number
21SN04149
Condition
Leaking
Location
Nr 1 Engine
Stage of operation
CR
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

STL - FLT 845 - DURING CRUISE, SHUT DOWN NR 1 ENGINE, SN 4183, DUE TO DECREASING OIL QUANTITY. FOUND OIL PRESSURE DIFFERENTIAL SWITCH, MFG PN 21SN04-149, CAP LEAKING. RE-TORQUED DIFFERENTIAL PRESSURE SWITCH CAP. SERVICED ENGINE OIL SYSTEM. ENGINE OPERATION AND OIL QUANTITY SYSTEM OPERATION CHECKED NORMAL. ENGINE TOTAL TIME: 79,296 HOURS; 13,809 CYCLES. CHECK C - 2-5-96 - JFK. (X)