N5128

Part: INTERPHONE — MALFUNCTIONED (COCKPIT) · airframe 8,282 hrs

AFTER UNIT WARMS UP, TRANSMITS AND RECEIVES BROKEN. PERFORMED PRELIMINARY INSPECTION. FOUND AMP BOARD AR1 AND TRANSISTOR Q8 BAD, REPLACED SAME. REPAIRED. BENCH CHECK GOOD.

Part: NOZZLE — CRACKED (1ST STAGE)

ENGINE REMOVED DUE TO TURBINE OVERHAUL. UPON INSPECTION OF TURBINE PARTS NOTED VANE CRACKS BEYOND SERVICEABLE LIMITS ON 1ST STAGE NOZZLE.

Part: CONTROL AMP — MALFUNCTIONED (COCKPIT)

BAGGAGE SMOKE DETECTOR LIGHT STAYS ON CONTINUOUSLY.

Part: YAW INDICATOR — INACCURATE (ROLL PITCH)

NEEDLE AT CH. 1 NOT SET CENTER ON YAW INDICATOR.

Part: CLOCK — MALFUNCTIONED (COCKPIT)

FIRST NUMBER ON CLOCK DOESN'T LIGHT UP.

Part: SWITCH — INTERMITTENT (AIRSPEED)

AUTOFLIGHT SWITCH INTERMITTENT.

Part: OIL COOLER — LEAKING (ENGINE OIL)

OIL COOLER LEAKING.

Part: SUPPORT — CORRODED (TAIL ROTOR)

BEARING SUPPORT CORRODED AND DAMPER UNBONDED.

Part: ACTUATOR — LEAKING (MAIN ROTOR)

ACTUATOR LEAKING.

Part: CONTROL — MALFUNCTIONED (COCKPIT)

WHEN TURNING WHEELS NR 2 AND NR 4, MAKES DIFFERENT CHANGE AT WINDOW ON CONTROL UNIT. PERFORMED PRELIMINARY INSPECTION AND FOUND THUMBWHEEL INTERMITTENT. ALSO FOUND TRANSMIT INCORRECT CTSS TONES.

Part: CONTROL — MALFUNCTIONED (COCKPIT)

NUMBER DOESN'T PICK UP AT WINDOW WHEN CHANGED ON CONTROL UNIT.

Part: BEARING — DAMAGED (M/R SPINDLE)

BEARING REMOVED FROM SPINDLE ASSY S/N A134-02545 DUE TO ELASTOMERIC SEPARATION. REPLACED WITH SERVICEABLE BEARING.

Part: STARTER — MALFUNCTIONED (START/GENERATOR)

ARMATURE BINDING ON STARTER/GENERATOR.

Part: NOZZLE — FAILED (2ND STAGE)

ENGINE REMOVED DUE TO NR 1 AND NR 2 WHEEL CYCLES. UPON INSPECTION OF TURBINE PARTS NOTED: RUNOUT EXCEED SERVICEABLE LIMITS ON NR 2 NOZZLE TIP PATHS .002 INCH RUNOUT OVER SPECS ON NR 1 TIP PATH. .001 INCH RUNOUT OVER SPECS ON NR 2 TIP PATH. INSTALLED OVERHAULED NR 2 NOZZLE.

Part: INDICATOR — FLUCTUATES (ENGINE OIL)

TEMPERATURE NEEDLE FLUCTUATES.

Part: CAUTION PANEL — FAILED (COCKPIT)

SPARE SEGMENT ON CAUTION PANEL DOES NOT ILLUMINATE.

Part: SWITCH — INTERMITTENT (AUTOFLIGHT)

AFCS SWITCH INTERMITTENT.

Part: ACTUATOR — INTERMITTENT (AIR INTAKE)

AIR INTAKE ACTUATOR FUNCTIONS INTERMITTENTLY.

Part: BEARING — SPALLED (M/R)

BEARING SPALLING. REPLACED WITH A SERVICEABLE PART.

Part: FLINGERS — GROOVED (M/R GR BOX)

HYD PUMP SEAL FLINGER IS GROOVED. REPLACED WITH A SERVICEABLE PART.

Part: ADAPTER SHAFT — WORN (M/R)

ADAPTER SHAFT WORN SEAT. REPLACED WITH A SERVICEABLE PART.

Part: MAST — WORN (M/R)

MAST WORN WHERE BEARING RIDES. REPLACED WITH A SERVICEABLE PART.

Part: CONTROL UNIT — DAILED (DC SYS)

CONTROL UNIT WILL NOT TURN ON GENERATOR.

Part: NOZZLE SHIELD — CRACKED (NR 1)

ENGINE REMOVED DUE TO TURBINE CYCLES. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON NR1 NOZZLE SHIELD DOME AS MARKED.

Part: ENCODER — FAILED (COCKPIT)

ENCODER INDICATES OUT OF TOLERANCE.

Part: GENERATOR CONTRO — FAILED (AC SYS)

A/C GENERATOR WOULD NOT COME ON BY ITSELF.

Part: BLADE — UNBONDED (T/R)

TIP WEIGHT POCKET COVER IS UNBONDED ON PADDLE "A".

Part: EJECTOR — CRACKED (EXHAUST)

EXH EJECTOR CRACKED.

Part: GENERATOR CONT — FAILED (AC SYS)

GENERATOR WILL NOT COME ON LINE.

Part: DAMPER — WEAK (M/R)

M/R DAMPER IS WEAK.

Part: PITCH HORN — GROOVED (M/R SYS)

DEEP GROOVE ON INBOARD LUG (WASHER AREA) APPROXIMATELY .025" IN DEPTH. SCRAPPED PART. REPLACED WITH SERVICEABLE PITCH HORN.

Part: EXCITER — FAILED (ENG IGN)

EXCITER WILL NOT FIRE IGNITION PLUGS.

Part: TIP CAP — DAMAGED (M/R)

BLADE END CAP OF TIP CAP IS DAMAGED.

Part: NOZZLE — CRACKED (NR 2)

ENGINE REMOVED DUE TO TURBINE CYCLES. UPON INSPECTION OF TURBINE PARTS NOTED: CRACKED BEYOND SERVICEABLE LIMITS ON NR 2 NOZZLE VANES AND KEY WELDS.

Part: INDICATOR — FAILED (FUEL QTY)

FUEL QTY INDICATOR BOTH NEEDLES WILL NOT INDICATE.

Part: GYRO — INOPERATIVE (COCKPIT VG)

VERT GYRO INOPERATIVE.

Part: AMPLIFIER — FAILED (ROLL SLICE)

ROLL SLICE AMP RETURNS TO CENTER.

Part: BLOWER — FAILED (VENT)

VENT BLOWER NOT TURNING AND INTERMITTENTLY POPS 35A POWER CIRCUIT BREAKER. REPLACED WITH SERVICEABLE BLOWER. SUGGESSTED CORRECTIVE ACTION: UNITS NEED MORE THOROUGH OVERHAUL INSTEAD OF JUST REPAIRING THE IMMEDIATE CAUSE OF FAILURE.

Part: BEARING — SEPARATION (XMSN)

BEARING SEPARATED BEYOND LIMITS.

Part: TIP CAP — CRACKED (M/R)

TIP CAP HAS THE LEADING EDGE ABRASION STRIP CRACKED AT THE DRAIN HOLE AND LIFTED.

Part: EJECTOR — CRACKED (EXHAUST)

EJECTOR HAS NUMEROUS CRACKS.

Part: EJECTOR — CRACKED (EXHAUST)

EJECTOR IS CRACKED.

Part: INDICATOR — DEFECTIVE (COCKPIT V SPEED)

READS 3000 FOOT CLIMB IN A DECENT.

Part: GYRO — MALFUNCTION (COCKPIT)

GYRO CAUSES COMPASS CORD TO SPIN INTERMITTENTLY.

Part: GEARSHAFT — STEPWEAR (SPUR ADAPTER)

ENGINE REMOVED DUE TO CYCLED OUT WHEELS. UPON INSPECTION OF COMPRESSOR PARTS NOTED THE FOLLOWING: STEP WEAR BEYOND LIMITS ON SPUR ADAPTER GEARSHAFT FORWARD AND AFT SPLINES. NEW PART INSTALLED.

Part: RELAY — FAILED (NR 1 DC SYS)

#1 GEN WOULD NOT COME ON LINE AFTER START. FOUND SCREWS THAT HOLD RELAY HALVES TOGETHER HAD BACKED COMPLETELY OUT ALLOWING SOLENOID PLUNGER TO JAM NOT ALLOWING MICRO SWITCHES TO GO TO REST. REPLACED WITH SERVICEABLE RELAY. SUGGEST LOCK TIGHT BE APPLIED TO ALL RELAY SCREWS IF NOT BEING DONE ALREADY.

Part: SEAL — FAILED (START/GENERATOR)

ON 6-10-95, NR 2 ENGINE OIL PRESSURE FLUCTUATED IN-FLIGHT. SECURED ENGINE, MADE SINGLE ENGINE LANDING. FOUND NR 2 ENGINE STARTER/GENERATOR SEAL HAD 'POPPED' OUT. SEAL HAD BEEN INSTALLED 30 MINUTES PRIOR. SUSPECT DAMAGED DURING INSTALLATION. 250-C30 IPC, CHAPTER 72-60-00, FIG 7, ITEM 31.