Service difficulty report · Red Gearbox · Lkheed 188A

Difficulty date
July 25, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N9744C
Make and model
Lkheed 188A
Aircraft serial
188A1140
Engine
Allsn 501D13
Part
Red Gearbox
Part number
6874188
Condition
High Oil Press
Location
Nr 3 Engine
Part time
37,016 hours
Stage of operation
CL
Nature of condition
J
Precautionary procedure
E, A

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

What was found

NR 3 ENGINE PRECAUTIONARY SHUTDOWN, AT 2026Z WHILE CLIMBING OUT OF ANC, DUE HIGH (244 PSI) REDUCTION GEARBOX OIL PRESSURE. RETURNED TO ANC. VERIFIED INDICATION SYSTEM. REPLACED RGB OIL PUMP ASSY. DID NOT CORRECT PROBLEM. SUSPECT RGB INTERNAL OIL SYSTEM RESTRICTION. REPLACED NR 3 ENGINE.