Service difficulty report · Engine · Lear 60LEAR

Difficulty date
September 6, 2012
Submitted
September 14, 2015
Operation
General aviation
Make and model
Lear 60LEAR
Engine
Pwa PW305A
Part
Engine
Condition
Malfunctioned
Location
Left
Stage of operation
CL
How discovered
O
Nature of condition
R, J
Precautionary procedure
A

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

What was found

(CAN) OCCASIONAL ROLLBACKS OCCURRED ON THE LT ENGINE AROUND 5-7 PERCENT DURING T/O PHASE, AS WELL AS AT ALTITUDE. POST FLIGHT TROUBLESHOOTING SHOWED FAULT CODES RELATED TO ENGINE INLET TOTAL TEMPERATURE PROBE SIGNAL COMING FROM THE ENGINE INPUT RESULTING IN THE ENGINE ELECTRONIC CONTROL SWITCHING FROM ENGINE INPUT TO THE AIR DATA COMPUTER INPUT SIGNAL. THE ERRATIC TTO SIGNAL COULD HAVE LED TO THE POWER ROLL BACKS P&WC IS FULLY COMMITTED TO ADDRESS THIS ISSUE PROACTIVELY AND WE WILL KEEP OPERATORS INFORMED OF OUR PROGRESS.