What it covers
For reports indicating a problem with wiring specific to the Rotors Flight Control System.
Service difficulty reports · 9
Reports filed under 6797, newest first.
| 2001 | 2 |
|---|---|
| 2004 | 1 |
| 2006 | 1 |
| 2007 | 1 |
| 2008 | 2 |
| 2012 | 1 |
| 2018 | 1 |
SDR QMLA2018031718033Wire · chafedDURING FORWARD FLIGHT, CREW EXPERIENCED RAPID AND ABRUPT VERTICAL UP/DOWN SHIFT. WINDS WERE CALM. PIC SLOWED AIRSPEED TO APPROXIMATELY 70-80 KNOTS AND EXPERIENCED A SECOND OCCURRENCE. CREW DECIDED TO CONDUCT A PRECAUTIONARY LINING AT KRDU APPROXIMATELY 4SDR QMLA2012022412054Connector · looseAT ABOUT 10-20 FT AFTER TAKEOFF, AIRCRAFT BEGAN A RAPID YAW TO THE LT. DID NOT HAVE FULL AUTHORITY OF THE RT YAW PEDAL. WAS ABLE TO STOP THE YAW RATE AND STABILIZE AT ABOUT A 60 FOOT HOVER. MOVING THE COLLECTIVE IN EITHER DIRECTION INDUCED A YAW EITHER TO TSDR M7KA0628084134Wire Harness · damagedFAILURE CODE AT SHUTDOWN INDICATED FAULT WITH THE COLLECTIVE POTENTIOMETER. A NEW POTENTIOMETER WAS INSTALLED AND NO FURTHER DEFECT REPORTED. IT WAS RECENTLY DISCOVERED THAT THE ROUTING OF AIR CONDITIONING SYSTEM WIRING IN CONTACT WITH THE UNSHIELDED ELECTRICASDR CA080115009Ground Wire · failed(CAN) IN THE PROCESS OF DOING RECURRENT TRAINING FLIGHT. AFTER SEVERAL SIMULATED HYD FAILURES IN AND OUT OF GROUD EFFECT HOVER, PROCEEDED TO PRACTICE THE SIMULATED HYD FAILURE. THE SIMULATED PROCEDURE WAS INITIATED FROM 100 FOOT HOVER WITH A VERBAL WARNING THASDR HEEA116773Wire · chafedDURING CRUISE, 11 MINUTES AFTER TAKEOFF, NR1 PITCH SERVO FAILED LIGHT CAME ON AND 6 MINUTES LATER NR 2 AHRS FAILED LIGHT CAME ON. THERE WAS NO PITCH CONTROL AVAILABLE THROUGH THE AFCS. THERE WAS NO BEEP TRIM RESPONSE IN THE PITCH AXIS. RETURNED TO DEPARTURESDR CA061002009Wire · chafed(CAN) GRIP ASSEMBLY OPENED TO INSTALL CARGO HOOK SWITCH AND FOUND STARTER BUTTON WIRE CHAFED UP AGAINST A GRIP MOUNTING SCREW. THE INSULATION WAS SPLIT OPEN 0.25 INCH AND 2 WIRE STRANDS REMAINED UNBROKEN. (TC NR 20061002009)SDR HEEA096021Wire · damagedNR 2 ENGINE N2 BEEP UNCONTROLLABLE CAUSING 30 PERCENT TORQUE SPLIT. RETARDED NR 2 THROTTLE TO A SETTING OF 38 PERCENT AND LANDED. MAINTENANCE FOUND BAD WIRING IN THE COPILOT COLLECTIVE STICK. REWIRED THE COLLECTIVE STICK AND REPLACED THE GOVERNOR SWITCH.SDR NUU2001F00000Wire · damagedUNCOMMANDED AUTOPILOT DISCONNECT. WHEN PILOT CYCLIC PRESS TO TRANSMIT SWITCH OPERATED. CYCLIC HANDLE WIRING FOUND CUT THROUGH BY THE OPERATION OF THE TRANSMIT TRIGGER. WIRING REPLACED AND REROUTED. CO PILOT CYCLIC HANDLE INSPECTED, WIRING FOUND DAMAGED BY SDR HEEA076907Harness · failedPEDAL STOP SWITCH DAMAGED BY INTERFERENCE WITH INSTRUMENT PANEL FRAME.