N220LN

ATA 2697

Part: CABLE — BROKEN (ENG COMPT) · airframe 7,772 hrs

PILOT WAS IN FLIGHT TO REFUEL AFTER A CALL. DURING FLIGHT HE OBSERVED THE NR 1 ENG FIRE WARNING LIGHT FLICKERING INTERMITTENTLY AND PROCEEDED TO LAND AT THE BASE. AFTER RECEIVING THE CALL-OUT, RESPONDED TO THE BASE AND STARTED TROUBLESHOOTING FOR A FAULTY FIRE INDICATION. FOUND A BROKEN WIRE FOR THE NR 1 ENGINE FIRE LOOP AT THE AFT FIREWALL AND REPLACED IT. AFTER REPLACING THE BROKEN WIRE, HAD THE PILOT PERFORM A GROUND RUN AND HOVER CHECK TO DO AN OPS CHECK OF THE SYS AND FOUND NO FURTHER DEFECTS OR FIRE INDICATIONS. ACFT WAS APPROVED FOR RETURN TO SERVICE AT THAT TIME.

ATA 7210

Part: GEARBOX — MAKING METAL (ENGINE) · airframe 7,073 hrs

AFTER ZONE INSPECTION ON NR1 ENGINE, ACFT WAS BEING GROUND RUN FOR LEAK CHECKS. ON START UP, THE ENGINE G/B CHIP LIGHT IMMEDIATELY CAME ON, PILOT SHUTDOWN STRAIGHT AWAY. MECHANIC PULLED THE CHIP PLUG AND FOUND NUMEROUS CHIPS ON THE PLUG. THIS WAS THE SECOND OCCURANCE WHERE METAL WAS FOUND ON THE PLUG.

ATA 6321

Part: DISC — UNSERVICEABLE (ROTOR BRAKE) · airframe 6,880 hrs

DURING LIFT OFF, ROTORBRAKE WARNING LIGHTS ILLUMINATED, FOLLOWED BY TRANSMISSION CHIP LIGHTS AND TRANSMISSION OIL PRESSURE. CREW REPORTED SMELLING SOMETHING BURNING. PILOT IMMEDIATELY LANDED ACFT AND SHUTDOWN. INSPECTED ROTORBRAKE AREA AND FOUND ROTORBRAKE DISC TO HAVE HEAT DAMAGE, ROTORBRAKE ASSY WAS MISSING PADS AND LEAKING HYD FLUID. TAILROTOR COUPLING ASSY TELE-TEMPS DISCOLORED. TRANSMISSION WIRING HARNESS WAS BURNED AND MELTED JUST ABOVE T/R OUPUT SHAFT ON AFT XSMN. BOTH ENGINE DRIVESHAFTS HAD DISCOLORED TELE-TEMPS.

ATA 3397

Part: WIRE — BROKEN (MAP LIGHT) · airframe 6,342 hrs

THE ACFT HAD BEEN STARTED IN RESPONSE TO A REQUEST FOR A SCENE CALL AND JUST BEEN BROUGHT TO A HOVER, DETECTED SMOKE IN THE COCKPIT. THE ACFT WAS SET BACK DOWN ON THE PAD, WHILE SCANNING THE INSTRUMENTS AND COCKPIT FOR A SOURCE OF THE SMOKE. IT WAS OBSERVED COMING FROM THE RT (PILOTS) DOORPOST MAP LIGHT. THE LIGHT WAS SHUT OFF, THE SMOKE DISSIPATED AND THE ACFT SHUT DOWN. ON CALL MX WERE NOTIFIED AND ARE ENROUTE. ON INSP A BROKEN WIRE WAS DISCOVERED AND REPAIRED. ACFT WAS STARTED WITH NO SMOKE AND LIGHT WORKING.

ATA 2823

Part: SELECTOR SWITCH — WORN (NR 2) · airframe 5,817 hrs

PILOT, COMING ONTO SHIFT, REFUELED THE AIRCRAFT, DID HIS PREFLIGHT INSPECTION, AND SAW NOTHING UNUSUAL AT 0900. AT 1017, THE AIRCRAFT WAS LAUNCHED ON A SCENE CALL, CLIMBED TO 4,500 FEET MSL AND LEVELED OFF IN CRUISE FLIGHT WHEN THE AC YAWED AND THE NR2 ENGINE GAGES BEGAN TO SHOW A RAPID DECREASE. THE PILOT LOWERED THE COLLECTIVE AND WENT TO FULL BEEP WHILE MONITORING ALL ENGINE GAGES. BY THIS TIME, THE NR2 NG AND N2 GAGES INDICATED ZERO. HE ANNOUNCED THAT THERE WAS AN ENGINE FAILURE AND TURNED BACK TOWARD THE BASE. THE PILOT HANDED THE CHECKLIST TO THE FRONT PASSENGER TO READ THOUGH THE LIST. WHEN THEY GOT TO THE FUEL VALVE SWITCH, SAW THAT THE NR2 FUEL VALVE SWITCH WAS ALREADY IN THE OFF POSITION. THE PILOT SECURED THE NR2 ENGINE AND SET UP FOR A SHALLOW APPROACH TO A RUN ON LANDING. ON SHORT FINAL, LOOKED AT THE NR1 ENGINE GAGES AND ALL WERE IN THE GREEN. JUST BEFORE TOUCH DOWN, PULLED UP THE COLLECTIVE SLIGHTLY TO CUSHION THE LANDING. AFTER TOUCHDOWN, LOWERED THE COLLECTIVE SLIGHTLY AND LOOKED BACK AT THE GAGES WHICH WERE ALL IN THE GREEN. WE SLID ABOUT 40 PACES AND CAME TO A SMOOTH STOP. THE PILOT SHUT DOWN THE NR1 ENGINE AND EXITED THE AIRCRAFT. SHORTLY AFTER THE ENGINE QUIT HE INFORMED COMPANY DISPATCHER OF THE SITUATION ON THE RADIO.

ATA 6330

Part: LINK — FAILED (M/R GEARBOX) · airframe 4,619 hrs · 23,789 cycles

WHILE IN CRUISE FLIGHT WITH PATIENT ABOARD. TWO LOAD BANGS WERE HEARD. A PRECAUTIONARY LANDING WAS MADE AT DCU. LANDED AIRCRAFT AND INSPECTED DOORS. NOTHING WAS FOUND. RESUMED THE FLIGHT AND APPROXIMATELY 2 MIN LATER A LOUD BANG BEGAN ACCOMPANIED BY VIBRATION AIRCRAFT WAS HALF MILE NORTH OF HUNTSVILLE INTERNATIONAL AIRPORT. AIRCRAFT WAS LANDED AT HSV. PATIENT WAS TRANSPORTED BY GROUND. FOUND LOWER ELASTOMERIC BEARING OF RIGHT HAND FORWARD TRANSMISSION LIFT LINK FAILED. REPLACED WITH SERVICEABLE LIFT LINK AND AIRCRAFT RETURNED TO SERVICE.