N485UH

ATA 6510

Part: RIVET — LOOSE (T/R DRIVE SHAFT) · airframe 16,385 hrs · 67,519 cycles

PILOT CONTACTED ME AFTER PERFORMING HIS DAILY PREFLIGHT AIRWORTHINESS CHECK. HE STATED THE TAIL ROTOR WAS MAKING A POPPING SOUND WHEN ROTATING IT BY HAND. I PROCEEDED TO REMOVE THE VERTICAL STABILIZER REAR FAIRING . I FOUND THAT WHEN HE ROTATED THE TAIL ROTOR BY HAND THE VERTICAL STABILIZER SHORT DRIVE SHAFT, HAD WORKING RIVETS AT THE LOWER FLANGE. ALL RIVETS ATTACHING DRIVE SHAFT FLANGE TO DRIVE SHAFT TUBE AT THE LOWER COUPLING WOULD SHIFT WHEN ROTATING THE TAIL ROTOR BACK AND FORTH BY HAND. I REMOVED AIRCRAFT FROM SERVICE. NO FLIGHTS WERE MADE AFTER PILOT REPORTED ISSUE.

ATA 3340

Part: LANDING LIGHT — ODOR (NOSE) · airframe 15,737 hrs · 64,693 cycles

ON APPROACH, THE FLIGHT CREW SMELLED A LIGHT ODOR OF BURNING PLASTIC. ONCE ON THE GROUND, THE MECHANIC FOUND THE RETRACTABLE LANDING LIGHT TO BE THE SOURCE. THE SYSTEM WAS DEACTIVATED AND DEFERRED. THE AIRCRAFT WAS THEN RETURNED TO SERVICE WITH NO OTHER DEFECTS NOTED.

ATA 2612

Part: SWITCH — WORN (TEST) · airframe 14,383 hrs · 58,594 cycles

DURING LANDING , NOTICED NR 1 ENGINE FIRE LIGHT ILLUMINATED. AFTER LANDING AND SHUTDOWN NOTICED THE TEST SWITCH WAS NOT IN THE SPRING LOADED NEUTRAL POSITION. DISCOVERED SWITCH WAS NOT OPERATING PROPERLY.

ATA 6520

Part: BOLT — BROKEN (T/R GEARBOX) · airframe 13,885 hrs · 56,401 cycles

WHILE PERFORMING A ZONE 4 INSPECTION IAW AMC AAIP, WHICH REQUIRES AN INSPECTION OF THE TAIL ROTOR GEARBOX FOR PROPER TORQUE OF ATTACHING HARDWARE. DURING THIS INSPECTION, ONE BOLT BROKE WITH MINIMAL EFFORT. REMOVED THE TAIL ROTOR GEARBOX TO INSPECT AND FOUND TWO MOUNTING STUDS LOOSE IN THE GEARBOX CASE. NO OTHER DAMAGE TO THE GEARBOX OR ACFT STRUCTURE WAS FOUND.

ATA 5210

Part: DOOR — SEPARATED (LT FUSELAGE) · airframe 13,709 hrs · 55,638 cycles

WHILE THE PILOT WAS IN CRUISE FLIGHT CONDUCTING AN ORIENTATION FLIGHT WITH ONLY A PASSENGER IN THE COPILOT SEAT, THE LT CABIN DOOR SEPARATED FROM THE ACFT AT APPROX 2000' MSL. THE PILOT MADE A PRECAUTIONARY LANDING TO INSPECT THE ACFT. THE MECHANIC ARRIVED TO INSPECT THE ACFT FOR DAMAGE. NO DEFECTS WERE NOTED. THE LT CABIN DOOR WAS RETRIEVED AND FOUND TO HAVE DAMAGE FROM WHERE IT HAD IMPACTED WITH THE GROUND. THE PILOT AND PASSENGER BOTH REPORTED THAT THE DOOR SEPARATED FROM THE BOTTOM TRACK FIRST. IT HELD ON FOR A SHORT PERIOD OF TIME AT THE UPPER ATTACHMENT POINTS BEFORE IT SEPARATED FROM THE ACFT. WHEN THE DOOR WAS INSPECTED, IT WAS NOTED THAT THE EMERGENCY RELEASE MECHANISM WAS IN THE STOWED/NORMAL FLIGHT POSITION. THERE WAS ALSO NO DAMAGE NOTED ON THE LOWER RAIL ASSY PN 117-24263-03.

ATA 5311

Part: FRAME — CRACKED (ZONE 200) · airframe 13,700 hrs · 55,591 cycles

DURING INSP FOUND THE TAIL CONE "A" FRAME CRACKED AT THE ECS BLEED LINE ATTACHMENT. AWAITING A REPAIR SCHEME FROM MFG.

ATA 5310

Part: STRUCTURE — CORRODED (ENGINE BAY) · airframe 13,700 hrs · 55,591 cycles

DURING INSP FOUND CORROSION ON THE LT INBD, RT INBD AND RT AFT ENGINE DECK.

ATA 5330

Part: SKIN — DENTED (ZONE 100) · airframe 13,700 hrs · 55,591 cycles

(QMLD) VARIOUS DENTS, PUNCTURES, AND GOUGES TO THE OUTER SKIN OF THE LOWER FUSELAGE BELLY AREA. THE INTERNAL FRAME IS DEFORMED IN ONE LOCATION ALSO. SUBMITTED DAMAGE. AWAITING A REPAIR SCHEME.

ATA 5320

Part: DOUBLER — CRACKED (TAILCONE) · airframe 13,700 hrs · 55,591 cycles

DURING AN INSPECTION OF THE TAIL CONE AREA FOUND THE AFT DOUBLER FRAME AT STA 6135 CRACKED. CONSULTED MFG AND ARE AWAITING A REPAIR SCHEME.

ATA 5310

Part: STRUCTURE — CHAFED (TRANSMISSION DEC) · airframe 13,700 hrs · 55,591 cycles

DURING INSPECTION OF THE AIRFRAME, FOUND CHAFING FROM THE TRANSMISSION COWLINGS ON THE LT AND RT SIDES INTO THE LT AND RT SIDES OF THE TRANSMISSION DECK. CONSULTED WITH MFG, AWAITING A REPAIR SCHEME.

ATA 5312

Part: BULKHEAD — CRACKED (FUSELAGE)

WHILE PERFORMING NON RELATED MX ON N125EC SN 7065 A CRACK WAS DISCOVERED IN THE LT AFT 5600 BULKHEAD IN THE AREA OF THE MOUNTED VACUUM PUMP. THE ACFT WAS GROUNDED AND MX NOTIFIED. CHOSE TO DO A PRECAUTIONARY CHECK OF OUR OTHER 3 ACFT ON SIGHT AND FOUND CRACKS IN THE SAME AREA ON N485UH SN 7036.