Service difficulty report · Autofeather Sys · Piagio P180

Difficulty date
May 28, 2012
Submitted
May 29, 2012
Operation
Air carrier
Aircraft
N136SL
Make and model
Piagio P180
Aircraft serial
1101
Aircraft time
7,582 hours, 5,573 cycles
Engine
Pwa PT6A66
Propeller
Hartzl HCE5N3L
Part
Autofeather Sys
Condition
Malfunctioned
Location
Right
Stage of operation
AP
How discovered
O
Nature of condition
S
Precautionary procedure
H

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

What was found

DURING APPROACH, THE CREW REPORTS THEY EXPERIENCED AN UN-COMMANDED AUTO-FEATHER ON THE RT ENGINE. ACFT LANDED WITHOUT INCIDENT. ADJUSTED RT SERRATED WASHER IAW AMM 76-10-00, ADJUSTED AUTOFEATHER CAM SWITCHES IAW AMM 76-20-00, AUTOFEATHER SYS OPS CHECKED GOOD IAW AMM 71-00-00.