Service difficulty report · Retainer · Lear 45LEAR

Difficulty date
September 29, 2006
Submitted
January 5, 2007
Operation
General aviation
Make and model
Lear 45LEAR
Aircraft serial
45195
Engine
Garrtt TFE731*
Part
Retainer
Part number
30606852
Condition
Corroded
Location
Lpt 2
Part time
4,660 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

MATERIAL LOSS ON THE LPT2 NOZZLE RETAINER WITH DISLODGED PINS THAT LIKELY LED TO DOWN STREAM LPT3 BLADE MID SPAN FRACTURES AND DISPLACED MATERIAL IN THE FORM OF IMPACT DAMAGE. THIS ENGINE WAS PRESERVICE BULLETIN 72-5165 AND ADDRESSES THIS ISSUE. (K)