N86CH

Part: CONTROL UNIT — MALFUNCTIONED (COCKPIT) · airframe 12,909 hrs

LED READ OUT ARE UNREADABLE ON DISPLAY. REPLACED WITH SERVICEABLE PART.

Part: TRANSMITTER — FAILED (ENG OIL PRESS)

TRANSMITTER INOPERABLE.

Part: TRANSMITTER — FAILED (ENG OIL PRESS)

TRANSMITTER INOPERABLE.

Part: SEAL — PITTED (MATING SURFACE)

RECEIVING INSPECTION REVEALED PITTED AND SCRATCHED SEAL FACE. INSTALLED NEW PART.

Part: INDICATOR — FAILED (TOT)

GAUGE READS NEGATIVE WHEN AIRCRAFT RUNNING.

Part: AUDIO CONTROL — FAILED (COCKPIT)

NO RECEPTION ON HEADSETS. PERFORMED PRELIMINARY INSPECTION AND FOUND SIDETONE LEVEL WEAK AND COULD NOT BE ADJUSTED TO MFG SPECS.

Part: INDICATOR — MALFUNCTIONED (COCKPIT)

SMALL NEEDLE OSCILLATES.

Part: TRANSMITTER — READS HIGH (FUEL SYSTEM)

PRESSURE TRANSMISSION CAUSING FLUCTUATIONS; READS HIGH OUT OF TOLERANCE ABOVE 16 PSI.

Part: INDICATOR — READS HIGH (TOT)

EXHAUST TEMPERATURE INDICATION READS 15 HIGH.

Part: GYRO — MALFUNCTIONED (HSI)

GYRO HAS INTERMITTENT OUTPUT TO HSI INDICATOR.

Part: HOUSING — LOOSE (GEARBOX)

ENGINE REMOVED DUE TO LOW POWER. UPON DISASSEMBLY OF ENGINE NOTED: DETACHED SPARE CAGE IN GEARBOX. GEARBOX DISASSEMBLY REVEALED: LOOSE P.T.O. CAGE IN GEARBOX HOUSING. INSTALLED A OVERHAULED GEARBOX HOUSING.

Part: COVER — LOOSE (GEARBOX)

ENGINE REMOVED DUE TO LOW POWER. UPON DISASSEMBLY OF ENGINE NOTED: DETACHED SPARE CAGE IN GEARBOX. GEARBOX DISASSEMBLY REVEALED: DETACHED SPARE CAGE AND LOOSE CAGES AS MARKED ON GEARBOX COVER. INSTALLED OVERHAULED COVER.

Part: VALVE — STICKING (BLEED AIR)

BLEED AIR VALVE INTERMITTENTLY STICKS IN OPEN POSITION.

Part: TRANSDUCER — FAILED (XMSN LUBE TORQUE)

TRANSDUCER PEGGING OUT, FUNCTION CHECK BAD, OUT OF TOLERANCE ON INCREASING PRESSURE.

Part: INDICATOR — ERRATIC (COCKPIT)

INDICATION ERRATIC.

Part: INDICATOR — FAULTY (COCKPIT)

NR 2 NR NEEDLE LAGS BEHIND AND IS RATCHETY.

Part: INDICATOR — FAILED (ROTOR)

ROTOR NEEDLE READS ABOUT 3% HIGHER THAN N2 NEEDLES.

Part: POWER SUPPLY — FAILED (STROBE)

STROBE LIGHT INOPERATIVE.

Part: RPM WARNING BOX — FAILED (ROTOR)

ROTOR LIGHTS INOPERATIVE.

Part: RPM WARNING BOX — MALFUNCTION (M/R)

AUDIO HORN BEEPS LOW.

Part: GEARBOX COVER — LEAKING (AFT TM BORE)

ENGINE REMOVED DUE TO AFT T/M LEAK. INSPECTION REVEALED: LEAKING AT COVER AFT T/M BORE.

Part: ALTIMETER — FAILED (COCKPIT)

RADAR ALTIMETER NEEDLE WON'T REVOLVE IN REVOLVE MODE.

Part: INDICATOR — HANGS (ENG RPM)

SINGLE RPM NEEDLE HANGS 10% WHEN MOTORING ENGINE.

Part: POWER SUPPLY — FAILED (LIGHTS)

POWER SUPPLY INOPERATIVE. NO OUTLET WORKS, SMALL RATTLE INSIDE.

Part: INVERTER — FAILED (AC SYS)

INVERTER FAILED. NO POWER TO 110 VAC.

Part: POWER SUPPLY — FAILED (LIGHTS)

POWER SUPPLY INOPERATIVE LIGHTS ARE OUT.

Part: OIL COOLER — LEAKING (NR 2 ENGINE)

NR 2 ENGINE OIL COOLER LEAKING.

Part: GEAR BOX ASSY — LOW OIL PRESS (ENGINE)

GEAR BOX ASSY LOW OIL PRESSURE.

Part: CARTRIDGE — DEFECTIVE (FUEL PUMP)

PUMP RUNS INTERMITTENTLY.

Part: TRANSCEIVER — MALFUNCTION (COCKPIT VHF)

SEGMENTS OF LETTERS INTERMITTENTLY DISAPPEAR. FOUND UNIT DISPLAY TO FLUTTER AND GO DIM INTERMITTENTLY AFTER WARMED UP. REMOVED SMALL METAL FLAKES FROM DISPLAY BOARD AND CLEANED REAR CONNECTOR. NO HELP. FOUND UNIT TO HAVE HISTORY OF DISPLAY PROBLEMS.

Part: INDICATOR — ERRATIC (ENG TEMP)

TEMP INDICATOR ERRATIC INDICATION. TIME SINCE REPAIR 14:40.

Part: VALVE — STICKING (BLEED SOV)

VALVE STICKING.

Part: FUEL TANK — CRACKED (MAIN FUEL)

FOUR UNBONDED SNAPS, CRACKED SEAMS AND WORN MATERIAL AT SNAP LOCATION.

Part: TANK — LEAKING (AUX FUEL)

TANK LEAKING.

Part: ELT — MALFUNCTION (COCKPIT)

ELT ACTIVATES IN FLIGHT.

Part: BEARING — FAILED (PC LINK)

BEARING INNER RACE CAME COMPLETELY OUT OF BEARING. INSTALLED SERVICEABLE P/C LINK. ONE P/C LINK SCRAPPED CAUSED BY BEARING FAILURE.

Part: TRANSMITTER — FAILED (FUEL QTY)

TRANSMITTER UNRELIABLE.

Part: INDICATOR — DEFECTIVE (COCKPIT)

FLAG IS NOT GOING BEHIND MASK AFTER TESTING. SENT TO ALLIED SIGNAL AVIONICS FOR INSPECTION AND REPAIR.

Part: INDICATOR — ERRATIC (MAST MOMENT)

UNIT WILL NOT TEST PROPERLY AND NEEDLE HAS A ERRATIC INDICATION. TIME SINCE REPAIR 0:00.

Part: TRANSMITTER — ERRATIC (ROTOR RPM)

TRANSMITTER UNIT WILL NOT TEST PROPERLY AND NEEDLE HAS A ERRATIC INDICATION. TIME SINCE REPAIR 0:00.

Part: TANK — PEELING (MAIN FUEL)

MAIN FUEL TANK,PEELING INSIDE.

Part: INDICATOR — DEFECTIVE (TRIPLE TACH)

#1 NEEDLE LAGS BY APPROXIMATELY 3%.

Part: CARTRIDGE — DEFECTIVE (BOOST PUMP)

UNIT STOPPED RUNNING. INSPECTED BY ACCESSORY SHOP AND RAN ON TEST BENCH. UNIT RAN SLOW AND NOISY. IT DID NOT RUN FAST ENOUGH TO INDICATE FLOW ON THE FLOW METER AND PRODUCED APPROXIMATELY 1 1/2 LBS. OF PRESSURE. UNIT RAN THIS WAY FOR A COUPLE OF MINUTES THEN STOPPED WORKING AND WOULD NOT START AGAIN. WHEN CARTRIDGE WAS REMOVED FROM BENCH IT WAS FOUND TO HAVE FUEL ON INTERIOR.

Part: CARTRIDGE — DEFECTIVE (FUEL BOOST)

FUEL CARTRIDGE CAUSED CIRCUIT BREAKER TO EXTEND (POP).

Part: POWER SUPPLY — INOPERATIVE (STROBE)

POWER SUPPLY INOPERATIVE.

Part: BLADE — CRACKED (M/R)

NOSE AND NECK SHELLS CRACKED.

Part: ENGINE ASSY — OBSTRUCTED (INLET)

#1 ENGINE T.O.T. INCREASED TO 800 DEGREES CELCIUS IN CRUISE. FOUND AN APPROXIMATELY 4 X 4 INCH PIECE OF CHAFE TAPE OBSTRUCTING THE INLET. REPAIRED ENGINE AND RETURNED TO SERVICE.

Part: WINDSHIELD — MIS MFG (COCKPIT RT)

DURING INITIAL FIT OF WINDSHIELD ON AIRFRAME, FOUND WINDOW TO HAVE IMPROPER FORM AND FIBERGLASS EDGING TOO THICK TO ALLOW PROPER FIT ON AIRFRAME.

Part: WINDSHIELD — MIS MFG (COCKPIT RT)

WINDSHIELD CRACKED DURING INSTALLATION AT UPPER INBOARD CORNER. FOUND WINDOW TO HAVE IMPROPER FORM AND FIBERGLASS EDGING TOO THICK TO ALLOW PROPER FIT ON AIRFRAME.

Part: BLADE — DEFECTIVE (M/R)

AFTER SETTING BLADE INTO GROUND TRACK AND BALANCE(.095 IPS), AIRCRAFT PICKED UP INTO A HOVER. BLADE CLIMBED OUT AND IPS READING WENT TO .6.