Service difficulty report · Pump · Lear 35LEAR

Difficulty date
July 8, 2010
Submitted
July 9, 2010
Operation
General aviation
Aircraft
N111WB
Make and model
Lear 35LEAR
Aircraft serial
003
Aircraft time
21,146 hours, 14,104 cycles
Engine
Garrtt TFE73122B
Engine time
18,848 hours, 11,928 cycles
Part
Pump
Part number
307194912
Part serial
04214
Condition
Failed
Location
Engine Oil Sys
Stage of operation
AA
How discovered
O
Nature of condition
J
Precautionary procedure
E

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

What was found

ON ENGINE START LT ENGINE DID NOT SHOW INDICATION OF OIL PRESSURE. ENGINE WAS SHUTDOWN IMMEDIATELY. OIL PUMP WAS REPLACED WITH O/H UNIT