N5426U

Part: INTERPHONE — MALFUNCTIONED (CABIN)

GARBLED FM. COULD NOT DUPLICATE PROBLEM BUT FOUND LIGHT PANEL NOT LIGHTING UP. REPAIRED CONNECTIONS TO LIGHT PANEL CONNECTOR AND REPLACED 3 BAD LAMPS INSIDE LIGHT PANEL. REPAIRED. FOUND MONITOR SWITCHES S2 - S11 BAD. REPLACED S2 - S11 MONITOR SWITCHES. REPAIRED. ALSO REPLACED BAD SELECTOR KNOB. BENCH CHECK GOOD.

Part: VALVE — INOPERATIVE (ANTI ICE SYSTEM) · airframe 16,027 hrs

ANTI ICE VALVE INOPERATIVE, CAUSING BOTH GREEN AND YELLOW CAUTION LIGHTS TO ILLUMINATE ON MASTER CAUTION PANEL. REPLACED WITH SERVICEABLE PART.

Part: BLADE — CRACKED (TAIL ROTOR) · airframe 15,995 hrs

TAIL ROTOR BLADE LEADING EDGE ABRASION STRIP ON PADDLE "B" HAS A HOLE WITH MULTIPLE CRACKS.

Part: INTERPHONE — MALFUNCTIONED (COCKPIT) · airframe 15,856 hrs

COPILOT HAS HOT MIC ON CABIN ICS. FOUND CAPACITOR C30, RESISTOR R71 AND LIGHT PANEL BAD. REPLACED, REPAIRED, BENCH CHECK GOOD.

Part: BELLCRANK — WORN (TAIL ROTOR) · airframe 16,108 hrs

TAIL ROTOR BELLCRANK HAS WORN BEARINGS. REPLACED WITH SERVICEABLE BELLCRANK.

Part: INDICATOR — PRECESSES (ADI) · airframe 14,101 hrs

ADI PRECESSES HORIZONTALLY IN FLIGHT.

Part: RIB — DEBONDED (MAIN ROTOR BLADE) · airframe 15,929 hrs

MAIN ROTOR BLADE TIP RIB UNBONDED.

Part: VERTICAL GYRO — KICKING (AFCS)

NR 1 PITCH KICKING.

Part: INDICATOR — MALFUNCTIONED (ADI)

UNABLE TO ADJUST HORIZON ENOUGH TO BRING IT BACK LEVEL.

Part: INDICATOR — INTERMITTENT (ADI)

COPILOT'S TURN AND SLIP INDICATOR INTERMITTENTLY INOPERATIVE.

Part: VERTICAL GYRO — FAILED (COCKPIT)

VERTICAL GYRO CAUSES ATTITUDE INDICATOR TO TUMBLE.

Part: VERTICAL GYRO — FAILED (COCKPIT)

ATTITUDE INDICATOR FAILED IN-FLIGHT.

Part: RECEIVER — MALFUNCTIONED (COCKPIT)

ADF NEEDLE DOES NOT POINT, ROTATES CONTINUOUSLY.

Part: POWER SUPPLY — INOPERATIVE (STROBE)

POWER SUPPLY INOPERATIVE, NO OUTPUT.

Part: GYRO COMPASS — MALFUNCTIONED (COCKPIT)

COMPASS WARNING LIGHT ILLUMINATES ON AND OFF.

Part: ACTUATOR — INOPERATIVE (AFCS)

AFCS ACTUATOR INOPERATIVE. POTS DEFECTIVE IN NULL POSITION.

Part: TRANSCEIVER — MALFUNCTIONED (COCKPIT)

WHEN TRANSMITTING, FOUND CORES OUT, WEAK, AND BROKEN.

Part: RING — WORN (SWASHPLATE)

SWASHPLATE'S OUTBOARD DIAMETER LINERS WORN.

Part: TRANSCEIVER — FAILED (COCKPIT)

TRANSCEIVER HAS NO TRANSMIT OR RECEIVE.

Part: VERTICAL GYRO — KICKS (AFCS PITCH)

PITCH KICKS IN-FLIGHT.

Part: INVERTER — INTERMITTENT (AC SYSTEM)

INVERTER DOES NOT COME ON LINE EVERY TIME.

Part: ACTUATOR — CHATTERS (AFCS)

NR 1 ROLL CHATTERING.

Part: ACTUATOR — CHATTERS (AFCS)

NR 2 PITCH CHATTERING.

Part: TRANSMITTER — MALFUNCTIONED (ENGINE FUEL)

ON TAKEOFF, NR 2 ENGINE TORQUE DROPPED WITH A CONTINUING RISE IN ENGINE TEMPERATURE. PILOT RETARDED NR 2 ENGINE AND MADE UNEVENTFUL LANDING. MAINTENANCE FOUND DEFECTIVE NR 2 ENGINE TORQUE TRANSMITTER. REF: ALLISON C-30 IPC, CHAPTER 73-31-00, FIGURE 1-18.

Part: TRANSMITTER — FAILED (NR 2 ENGINE)

ON TAKEOFF, NR 2 ENGINE TORQUE DROPPED WITH A CONTINUING RISE IN ENGINE TEMPERATURE. PILOT RETARDED NR 2 ENGINE AND MADE AN UNEVENTFUL LANDING. MAINTENANCE FOUND DEFECTIVE NR 2 ENGINE TORQUE TRANSMITTER. REF: ALLISON C-30 IPC, CHAPTER 73-32-00, FIG 1-18.

Part: CONTROL UNIT — FAILED (DC SYSTEM)

GENERATOR WOULD NOT RESET.

Part: RECEIVER — MALFUNCTIONED (COCKPIT ADF)

ADF SLOW TO RESPOND, KA135 CABLE BROKEN.

Part: AFCS ACTUATOR — INOPERATIVE (YAW SLICE)

ACTUATOR INOPERATIVE. INSPECTED BY ACCESSORY OVERHAUL SHOP AND FOUND POTENTIOMETERS CHECKED BAD ON STRIP CHART.

Part: ACTUATOR — MALFUNCTIONED (AFCS)

ACTUATOR MALFUNCTION.

Part: ACTUATOR — KICKING (AFCS)

NR 1 YAW KICKS.

Part: INDICATOR — FAILED (COCKPIT ADI)

ADI INDICATION RATCHETY.

Part: CONTROL UNIT — FAILED (DC SYSTEM)

DC CONTROL UNIT WILL NOT BRING GENERATOR ON LINE.

Part: VERTICAL GYRO — PRECESSING (COCKPIT)

VERTICAL GYRO PRECESSES IN FLIGHT.

Part: SELECTOR — FAULTY (COCKPIT)

COURSE SELECTOR KNOB ROTATES CONTINUOUSLY WITH POWER ON.

Part: ALTIMETER — INTERMITTENT (COCKPIT ENCODER)

OUTPUT ON ALTIMETER IS INTERMITTENT AND INCORRECT.

Part: NOZZLE SHIELD — CRACKED (NR 1)

ENGINE REMOVED DUE TO NR1 AND NR2 WHEEL CYCLES. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON NR1 NOZZLE SHIELD OUTER BAND.

Part: INDICATOR — LEAKAGE (COCKPIT)

ALTIMETER EXCESSIVE CASE LEAKAGE.

Part: INDICATOR — FAILED (COCKPIT)

INDICATOR IS OUT OF TOLERANCE AT 18,000 FEET. FAILED BEFORE AND AFTER TEST.

Part: VERTICAL GYRO — MALFUNCTION (NR 1 PITCH)

NR 1 PITCH KICKS IN LEVEL FLIGHT.

Part: DETECTOR — FAILED (FIRE DET SYS)

FLAME DETECTOR WOULD NOT TEST CORRECTLY.

Part: PITCH SLICE AMP — MALFUNCTION (AUTO FLIGHT)

NR 1 PITCH KICKS IN FLIGHT.

Part: ALTIMETER — FAILED (COCKPIT)

ALTIMETER INDICATES OUT OF TOLERANCE AT APPROXIMATELY 18,000 FEET. ALSO UNIT HAS CLICKING NOISE WHILE BEING RUN.

Part: VERTICAL GYRO — DEFECTIVE (COCKPIT)

ADI WILL FALL 90 DEGREES.

Part: VERTICAL GYRO — FAILED (COCKPIT)

VERT GYRO MALFUNCTION. TAKES 5 TO 7 MINUTES TO PULL FLAG ON ADI.

Part: INVERTER — FAILED (AC SYS)

INVERTER DROPS OFF LINE AFTER ONE HOUR. TIME SINCE REPAIR 11:10.

Part: PRIORITY VALVE — FAILED (GEAR)

NR2 SERVO LIGHT WOULD COME ON WHEN GEAR IS LOWERED OR RAISED.

Part: ALTIMETER — FAILED (COCKPIT)

RADAR ALTIMETER NEEDLE FLUCTUATING AND WILL NOT SELF TEST PROPERLY.

Part: BLADE — DEFECTIVE (T/R HORN B)

PITCH HORN "B" HAS REACHED RETIREMENT TIME.

Part: ACUTATOR — INTERMITTENT (ENGINE CONTROL)

ACTUATOR INOPERATIVE. TAPPED THEN WORKED INTERMITTENTLY.

Part: DAMPENER — WORN (M/R)

DAMPENER INNER BUSHING CAVITY OVERSIZED.

Part: OUTPUT FLANGE — SHEARED (ENGINE)

ENG OUTPUT SHAFT SHEARED AT THREADS. SCRAPPED PART.

Part: GYRO — FAULTY (COCKPIT VG)

VERT GYRO SLOW TO ERECT. TIME SINCE REPAIR 124:50.

Part: GYRO — DEFECTIVE (COCKPIT VG)

VERT GYRO CAUSING ADI TO JUMP ERRATICALLY.

Part: TRANSMITTER — FAILED (ENG OIL PRESS)

OIL GAUGE WENT TO ZERO.

Part: TRANSMITTER — DEFECTIVE (ENG OIL PRESS)

#1 ENGINE OIL PRESS READS LOW GREEN AT FULL RPM.

Part: GYRO — PRECESSES (STANDBY ATT)

STANDBY ATTITUDE GYRO PRECESSES.

Part: ALTIMETER — DEFECTIVE (RADAR ALTIMETER)

INDICATOR WOULD DROP OFF LINE WHEN #1 FM RADIO WOULD BE KEYED.

Part: TIP CAP — CRACKED (M/R BLADE)

M/R BLADE TIP CAP IS CRACKED AT THE TIP END.

Part: TRANSMITTER — DEFECTIVE (ENG OIL PRESS)

ENG OIL PRESSURE LOW OUT OF TOLERANCE.

Part: FITTING — CRACKED (GEAR DOOR)

DOOR FITTING CRACKED. REPLACED WITH SERVICEABLE FITTING.

Part: TIP CAP — HOLED (M/R)

TIP CAP HAS A HOLE IN THE ABRASION STRIP WITH GLASS EXPOSED. THE "C" CHANNEL HAS SOME SEPARATION.

Part: NAV SYS — FAILED (COCKPIT)

"APT" BUTTON DOESN'T WORK AND "ENT" BUTTON INTERMITTENT.

Part: SHUTTLE VALVE — DEFECTIVE (HYD)

VALVE LEAKING INTERNALLY.

Part: ALTIMETER — FAILED (COCKPIT RAD ALT)

RADAR ALTIMETER READS 50 FEET ON GROUND. (NEEDLE ON INDICATOR SPINS CONSTANTLY AND FLUCTUTATES INTERMITTENTLY)

Part: INDICATOR — FRICTION ERROR (COCKPIT)

EXCESSIVE FRICTION ERROR AND 2 YEAR INSPECTION DUE.

Part: EJECTOR — CRACKED (EXHAUST)

EJECTOR IS CRACKED.

Part: INDICATOR — FAILED (RADAR)

DISPLAY SHRINKS IN SIZE INTERMITTENTLY. VERIFIED UNIT HAS BAD VIDEO BOARD.

Part: BLADE — SEPARATION (BLADE STA 168)

SPLICE ON THE LEADING EDGE AT STATION 168 WITH SEPARATION BEYOND LIMITS.

Part: SHAFT — BROKEN (ENG OUTPUT)

SHAFT BROKEN. BROKE BELOW SAFETY HOLE. REPLACED WITH SERVICEABLE UNIT.

Part: RECEIVER — DEFECTIVE (COCKPIT)

NO AUDIO AND WILL NOT TEST. ALSO FACEPLATE DAMAGED AND CRACKED.

Part: BLADE — CRACKED (M/R)

BLADE IS CRACKED. SPAR CRACKED AT ROOT END. SCRAPPED M/R BLADE.

Part: CVR — FAILED (COCKPIT)

CVR NOT RECORDING.

Part: SPLINE ADAPTER — MIS MFG (TURBINE)

RECEIVING INSPECTION OF NEW, NEVER INSTALLED SPLINE ADAPTER INDICATED I.D. MANUFACTURED .0005" OVER MAX B.P. SPECS OF .6565" ADAPTER MEASURES .657. INSTALLED NEW SPLINE ADAPTER.

Part: TIP CAP — CRACKED (M/R)

CRACKED ABRASION STRIP WITH MULTIPLE BRANCH. IT ALSO HAS EXCESSIVE EROSION OF FIBERGLASS NEAR THE TIP.

Part: INDICATOR — MALFUNCTION (COCKPIT)

IN TEST MODE IN MAP POSITION, SECOND BAND FROM TOP IS YELLOW AND BLUE. ALSO SCREEN IS RED AT NIGHT AND CANNOT BE ADJUSTED. FOUND CRT BROKEN IN HALF AND BROKEN WIRE ON P1 CONNECTOR OF POWER SUPPLY.

Part: OUTPUT GEAR — WORN (INTERMED GR BOX)

WORN SPLINES. REPLACED WITH SERVICEABLE PART.

Part: FLANGE — WORN SPLINES (INTERMED GR BOX)

WORN SPLINES. REPLACED WITH SERVICEABLE PART.

Part: EJECTOR — CRACKED (EXHAUST)

EJECTOR CRACKED.

Part: LORAN — DEFECTIVE (COCKPIT)

MUST PRESS ENTER BUTTON SEVERAL TIMES BEFORE IT FUNCTIONS PROPERLY. CLEANED ENTER BUTTON AND CONTACT. BUTTON WORKS EVERY TIME BUT ONLY WHEN PUSHED IN CENTER. WORKS INTERMITTENTLY WHEN PUSHED ON SIDES.

Part: BLADE — WONT BALANCE (T/R)

UNABLE TO BALANCE. SUSPECT THAT PADDLE "A" MAY HAVE WATER INSIDE.

Part: R50I — DEFECTIVE (COCKPIT)

ENTER BUTTON WORKS INTERMITTENTLY.