N911HM

Part: INDICATOR — INACCURATE (GLIDESCOPE)

HSI CONTROL INDICATED 90 DEGREES OFF COURSE.

Part: NOZZLE — CRACKED (TURBINE)

ENGINE REMOVED DUE TO LOW POWER. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKED AND MISSING COATING OUT OF SERVICEABLE LIMITS ON NR 1 NOZZLE VANES.

Part: CONTROL UNIT — MALFUNCTIONED (COCKPIT)

FREQUENCY DISPLAY INTERMITTENT ON CONTROL UNIT.

Part: CONTROL UNIT — MALFUNCTIONED (COCKPIT)

NUMBERS ON CONTROL UNIT INTERMITTENTLY CHANGING.

Part: STARTER — MALFUNCTIONED (START/GENERATOR)

STARTER/GENERATOR HAD SLOW STARTS.

Part: CONTROL UNIT — FAILED (COCKPIT)

CONTROL UNIT INOPERATIVE. WILL NOT LOAD FREQUENCIES.

Part: RING GEAR — CRACKED (M/R GEARBOX)

MAKING METAL. FOUND RING GEAR CRACKED AT ALIGNMENT BOLT HOLE FORWARD POSITION. ALSO FOUND COLLECTOR WHEEL, SUNGEAR , 2 EACH INTERMEDIATE SHAFT, 5 EACH PLANETARY GEARS SPALLING. REPAIRED TRANSMISSION AND INSTALLED SERVICEABLE PARTS.

Part: INDICATOR — READS HIGH (TOT)

EXHAUST TEMPERATURE INDICATION, 20 HIGH THROUGHOUT SCALE.

Part: LOWER HOUSING — WORN (MAIN ROTOR)

INTERNAL SHAFT SEAT WORN.

Part: CENTER CASE — WORN (M/R TRANSMISSION)

TAIL ROTOR BORE WORN, ACCY BORE WORN, NOZZLE RING BORE WORN.

Part: SHAFT — WORN (TAIL ROTOR)

SHAFT ASSEMBLY HAS WORN BEARING.

Part: SHAFT — WORN (TAIL ROTOR)

TAIL ROTOR SHAFT HAS WORN BEARINGS OR SLEEVES.

Part: SHAFT — CORRODED (TAIL ROTOR)

CORROSION ON SHAFT.

Part: TRANSMITTER — FLUCTUATES (FUEL PRESS IND)

FUEL PRESSURE INDICATOR FLUCTUATES THROUGHOUT SCALE.

Part: CONTROL UNIT — MALFUNCTIONED (COCKPIT)

LOST PROGRAMMING; WILL NOT RE-PROGRAM. PERFORMED PRELIMINARY INSPECTION. UNABLE TO LOAD FREQUENCY INTO MEMORY.

Part: REGULATOR — FAILED (DC SYS)

VOLTAGE GOES TO 30 VOLTS AND WILL NOT ADJUST.

Part: BEARING — UNBONDED (MIXING LEVER)

TEFLON UNBONDING FROM BEARING. REPLACED WITH NEW BEARING.

Part: TRANSCEIVER — FAILED (NR 2 VHF)

ON 4-23-98 (HOUMA) WHILE IN CRUISE FLIGHT, PILOT HEARD SEVERAL LOUD 'POPS' FROM NR 2 VHF RADIO AND BEGAN TO PRODUCE THICK BLACK SMOKE. HE PULLED THE VHF 2 CIRCUIT BREAKER AND VENTILATED THE CABIN. CONTINUED WITH FLIGHT. MAINTENANCE REPLACED VHF RADIO.

Part: LORAN — FAILED (COCKPIT)

LORAN FALLS OFF LINE, DISPLAY AND HISTORY HAS SAME PROBLEMS. SENT TO ARNAV SYSTEMS, INC. FOR WARRANTY REPAIR. TIME SINCE REPAIR 24:50.

Part: TACH INDICATOR — FAILED (COCKPIT)

TRIPLE TACH INDICATOR ALL NEEDLES STICKING DURING OPERATION.

Part: RING — PITTED (M/R HEAD)

SEAL RIDE HAS UNACCEPTABLE PITTING AND GOUGES.

Part: VALVE — INOPERATIVE (OIL SOV)

SOLENOID SWITCH INOPERATIVE.

Part: BLADE — SEPARATION (M/R)

SEPARATION ON THE NUMBER TWO CENTER LEADING EDGE STRIP ON THE INBOARD END BEYOND LIMITS.

Part: TRANSCEIVER — FAILED (COCKPIT)

NO TRANSMIT OR RECEIVE.

Part: TRANSCEIVER — FAILED (COCKPIT VHF)

TRANSCEIVER DOESN'T RECEIVE.

Part: VALVE — STICKS (OIL SYS)

VALVE STICKING AND CORRODED SOLENOID.

Part: TRANSMITTER — DEFECTIVE (FUEL PRESS)

NO VALID OUTPUT, #1 READS 0 PRESSURE.

Part: INTERNAL SUMP — DEFECTIVE (TURBINE ASSY)

UPON TURBINE ASSEMBLY NOTED: INLET AIRHOLE ON INTERNAL SUMP DOES NOT LINE UP WITH AIR HOLE IN P.T. SUPPORT. NOTE: INTERNAL SUMP TRIED ON THREE P.T. SUPPORTS. REPLACED DISCREPANT PART.

Part: ELT — WONT TEST (COCKPIT)

WILL NOT TEST. SENT TO NARCO AVIONICS FOR INSPECTION AND REPAIR.

Part: RECEIVER — DEFECTIVE (COCKPIT)

CDI NOT FOLLOWING LORAN.

Part: VALVE — FAILED (FUEL SYS)

VALVE SHORTED ELECTRICALLY. INSPECTED BY ACCESSORY OVERHAUL SHOP AND FOUND SOLENOID IS SHORTED OUT.