SDR RU3A1018

Service difficulty report · Unknown · Cndair CL6002B16

Difficulty date
July 23, 2010
Submitted
August 4, 2010
Operation
Air carrier
Aircraft
N87
Make and model
Cndair CL6002B16
Aircraft serial
5190
Aircraft time
6,662 hours, 3,081 cycles
Part
Unknown
Condition
Malfunctioned
Location
Autopilot Sys
Stage of operation
CL
How discovered
O
Nature of condition
F, J
Precautionary procedure
O

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

What was found

TWO UNCOMMANDED ABRUPT RIGHT RUDDER INPUTS. AUTOPILOT ON. YAW DAMP ON. AIRCRAFT CLIMBING THROUGH 8000 FEET AT 250 KNOTS. SECOND EVENT 11000 FEET AT 250 KNOTS. NO SERVO MONITOR LIGHT ILLUMINATED. NO INDICATION OF JAM RUDDER. ALL THREE HYDRAULIC SYSTEM PRESSURES NORMAL. INITIATED PHONE PATCH WITH FICO, FICO MX AND CHIEF PILOT. DISCUSSED VARIOUS OPTIONS AND DETERMINED SAFEST PLAN WAS TO RECOVER INTO PLANNED DESTINATION (FLIGHT TIME LESS THAN 20 MINUTES). KEPT BELOW FL210, 250 KNOTS. LANDED UNEVENTFULLY. MAINTENANCE PERFORMED FUNCTIONAL TEST OF RUDDER/YAW SYSTEM. CHECKED RUDDER CONTROL CABLES FOR BINDING OR OBSTRUCTIONS. ALL CHECKED GOOD.