Service difficulty report · Engine · Piagio P180

Difficulty date
February 22, 2013
Submitted
February 25, 2013
Operation
Air carrier
Aircraft
N161SL
Make and model
Piagio P180
Aircraft serial
1128
Aircraft time
6,940 hours, 5,437 cycles
Engine
Pwa PT6A66
Engine time
6,951 hours, 5,454 cycles
Part
Engine
Condition
Failed
Location
Right
Stage of operation
CL
How discovered
O
Nature of condition
R, B, J
Precautionary procedure
E

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

What was found

CLIMBING OUT OF FL260 TO FL310, RT TORQUE DROPPED 20 PERCENT AND IMMEDIATELY ROSE BACK TO 97 PERCENT. A SLIGHT HIGH FREQUENCY VIBRATION WAS THEN NOTICED BY CREW. CLIMB WAS CONTINUED TO FL310. AT FL310 OIL PRESSURE DROPPED BELOW 90PSI ON THE RT ENGINE WITH AURAL WARNING. OIL PRESSURE RED ANNUNCIATOR DID NOT ILLUMINATE. WITHIN 10 SECONDS AFTER PRESSURE LOSS, SMOKE ENTERED THE CABIN. CREW THEN INITIATED COMMANDED ENGINE SECURING PROCEDURE. NO ENGINE PARAMETERS WERE EXCEEDED.