Service difficulty reports · 4
Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.
SDR 97ZZZX3211Switch · failedTEMPERATURE SWITCH MALFUNCTIONED FOR NO OBVIOUS REASON. CAUSED INTERMITTENT OVERTEMP LIGHT OF M/R GEARBOX.SDR 97ZZZX3210Spring Assy · wornARM C581-1 WAS BINDING AND WEARING INTO SHAFT. THIS CAUSED THE LATERAL SPRING ASSEMBLY TO LOCK MOMENTARILY. EXCESSIVE WEAR ON THE SPRING SHAFT COULD AFFECT THE FLIGHT CONTROLS AND AIRCRAFT CONTROL ABILITY.SDR 97ZZZX3321Bearing · wornENG/TRANSMISSION COUPLING, LOWER BEARING OF ACTUATOR WHICH IS CONNECTED TO LOWER SHAFT AND BEARING ASSEMBLY WORE OUT. THIS CAUSED THE ACTUATOR ASSEMBLY TO VIBRATE AND, THEREFORE, ONE BELT TENSION SWITCH TO BREAK. BEARING TOO WEAK TO HOLD UP TO THE PRESSURE ASDR 97ZZZX3320Switch · brokeENGINE/TRANSMISSION COUPLING, VIBRATION OF ACTUATOR CAUSED ACTUATOR SPRINGS TO VIBRATE ON BOTH SWITCHES AND, THEREFORE, ONE BELT TENSION SWITCH TO BREAK. SWITCH BROKE IN CLOSED POSITION. SPRINGS TOO WEAK TO WITHSTAND VIBRATION.