Service difficulty report · Planetary Gear · Lear 35A

Difficulty date
January 29, 2004
Submitted
February 10, 2004
Operation
Air carrier
Aircraft
N35TJ
Make and model
Lear 35A
Aircraft serial
137
Engine
Garrtt TFE73122B
Part
Planetary Gear
Part number
307217810
Part serial
P223
Condition
Failed
Location
Gearbox
Part time
13,594 hours
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

1 EACH PLANETARY BEARING FAILED, CAUSING MASSIVE CHAIN REACTION FAILURE WITHIN FAN GEARBOX.

More about the Lear 35A