Service difficulty report · Carbon Seal · Lear 35A

Difficulty date
February 29, 2004
Submitted
April 16, 2004
Operation
Air carrier
Aircraft
N274JS
Make and model
Lear 35A
Aircraft serial
274
Engine
Garrtt TFE7312B
Part
Carbon Seal
Condition
Leaking
Location
Nr 1 Engine
Stage of operation
NR
How discovered
O
Nature of condition
K
Precautionary procedure
O

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

What was found

UPON COMPLETION OF A FOUR POINT RUN AND CASE PRESSURE CHECK IT WAS NOTED THAT THE NR 3 AND NR 4, CARBON SEALS WERE LEAKING. THIS REQUIRED AND ENGINE CHANGE OF NR 1 ENGINE.

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