Service difficulty report · Yaw Damper · Cessna 750

Difficulty date
April 27, 2007
Submitted
April 28, 2007
Operation
Air carrier
Aircraft
N939QS
Make and model
Cessna 750
Aircraft serial
7500193
Aircraft time
5,158 hours, 3,051 cycles
Engine
Allsn AE3007C
Part
Yaw Damper
Condition
Malfunctioned
Stage of operation
TO
How discovered
O
Nature of condition
J, F
Precautionary procedure
C

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

What was found

EICAS MESSAGES, YAW DAMPER OFF LOWER, YAW DAMPER NOT CENTERED. (MACH TRIM OFF) ILLUMINATED DURING THE TAKEOFF ROLL AFTER 40 KTS. [SUP 05-03-07] PERFORMED PITOT/STATIC LEAK CHECK AND FOUND NR 2 MADC PITOT FLEX LINE LEAKING. REPAIRED LINE IN ACCORDANCE WITH FAR 91.411 PART 43 APPENDICES E AND F AND CITATION 750 MM CH 34-11-08. PERFORMED LEAK CHECK AND FOUND TO BE OK. EICAS MESSAGES NO LONGER DISPLAYED AT 40 KTS.

More about the Cessna 750