SDR CA190527006

Service difficulty report · Actuator · Bombdr DHC8400

Difficulty date: May 25, 2019
Submitted: August 17, 2020
Operation: General aviation
Make and model: Bombdr DHC8400
Aircraft time: 4,085 hours
Engine: Pwc PW150A
System (JASC): 2210 · Autopilot System
Part: Actuator
Part number: C18117AA
Condition: Failed
Location: Roll
Stage of operation: NR
How discovered: O
Nature of condition: F
Precautionary procedure: O

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

What was found

(CAN) AIRCRAFT ROLLED LEFT/RIGHT WITH AUTOPILOT ENGAGED. LEFT/RIGHT MISTRIM MESSAGES ON PFD. AUTOPILOT DISCONNECTED AND AILERON CONTROL WAS JAMMED. OVERPOWERED JAM AND FLEW WITHOUT AUTOPILOT. MAINTENANCE REPLACED THE AUTOPILOT ROLL ACTUATOR, TESTED THE SYSTEM SERVICEABLE AND THE AIRCRAFT WAS SUBSEQUENTLY RELEASED FOR SERVICE. ACTUATOR HAD BEEN INSTALLED FOR 3261H/3040C SINCE LAST SHOP VISIT. (TC# 20190527006)