Service difficulty report · Engine · Lkheed 382G

Difficulty date
May 11, 2018
Submitted
May 15, 2018
Operation
Air carrier
Aircraft
N401LC
Make and model
Lkheed 382G
Aircraft serial
4606
Aircraft time
57,287 hours, 33,732 cycles
Engine
Allsn 501D22A
Part
Engine
Condition
Overspeed
Location
Nr 3
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
E, A

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

What was found

DURING SCHEDULED FLIGHT, THE NR 3 ENGINE OVERSPEED OF APPROXIMATELY 106% WHEN BLEEDS WERE TURNED ON AT 1000 FEET. ENGINE WAS SHUTDOWN IAW ESP. INSPECTED AND CLEANED ALL 5 AND 10 STAGE BLEED VALVES, PRESSURE WASHED ENGINE COMPRESSOR , COMPLIED WITH ENGINE PERFORMANCE CHECK.