Service difficulty report · Switch · Boeing 747249F

Difficulty date
December 29, 2001
Submitted
January 10, 2002
Operation
Air carrier
Aircraft
N920FT
Make and model
Boeing 747249F
Aircraft serial
22237
Aircraft time
69,447 hours, 17,083 cycles
Engine
Pwa JT9D7Q
Engine time
57,162 hours, 13,025 cycles
Part
Switch
Part number
21SN04149
Part serial
4150
Condition
Malfunctioned
Location
#3 Engine
Stage of operation
CL
How discovered
V
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

#3 ENGINE OIL PRESSURE LITE ON PILOT'S FWD ANNUNCIATOR PANEL ILLUMINATED. ALT PROCEDURES CHECK LIST ACCOMPLISHED - OIL PRESS, QUANTITY NORMAL - FILTER BYPASS LIGHT EXTINGUISHED. REMOVED & REPLACED LOW OIL PRESS SWITCH PER MM 79-33-01. PERFORMED WINDMILL INSPECTION PER 72-00-00. OIL STRAINED & CHIPS CLEANED . REINSTALLED. LEAK CHECK GOOD. OK FOR SERVICE.