N741SW

Part: WIRE — DAMAGED (RT MLG)

AFTER TAKE OFF, WHILE RETRACTING GEAR THE RED GEAR UNLOCK LIGHT STAYED ILLUMINATED. RECYCLED GEAR SEVERAL TIMES WITH THE SAME RESULT. RETURNED TO FOURCHON WHERE MAINTENANCE TROUBLESHOT THE LANDING GEAR, REMOVED AND REPLACED CABLE ASSY PN 76552-00110-109 IAW MM. GROUND CHECKED, OK.

Part: BEARING — SPALLED (M/R GEARBOX) · airframe 18,535 hrs

MAIN GEARBOX REMOVED FOR METAL IN OIL, FOUND BEARING BREAKING DOWN.

Part: LIGHT — INOPERATIVE (FIRE HANDLE)

DURING START, THE NR 2 ENGINE FIRE DETECTION (T) HANDLE LIGHT WOULD NOT ILLUMINATE. THE MECHANIC REPAIRED THE WIRE IAW MM. OPERATIONAL CHECK WAS PERFORMED AND THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: WARNING LIGHT — ILLUMINATED (HYD SYS)

DURING TAKE OFF, THE NR 1 HYDRAULIC LIGHT ILLUMINATED. THE PILOT FOLLOWED THE CHECKLIST AND LANDED ON HI 389. THE MECHANIC CHECKED THE NR 1 HYDRAULIC SYSTEM PRESSURE CONTROL AND WARNING SYSTEM COMPLIED WITH GROUND RUN AND OPS CHECK. NO DEFECT NOTED.

Part: CONNECTOR — MALFUNCTIONED (HYD SYSTEM)

DURING CLIMB OUT, NR 1 SERVO CAUTION LIGHT ILLUMINATED, THE PILOT THEN FOLLOWED THE CHECKLIST PROCEDURES. IT REOCCURRED AGAIN BEFORE LANDING. THE INDICATION WAS A MOMENTARY SERVO JAM, UPON LANDING THE MECHANIC FOUND CONNECTORS CORRODED ON NR 1 HYDRAULIC MODULE AND NR 1 SIDE OF MAIN ROTOR AFT SERVO, CLEANED THE CONNECTORS AND CHECKED THE HYDRAULIC SYSTEM WITH THE HYDRAULIC MULE IAW MM, FOLLOWED BY AN OPERATION CHECK AND FOUND TO BE SERVICEABLE. THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: BULB — BURNED OUT (FIRE WARN LIGHT) · airframe 17,870 hrs

DURING RUN-UP, NR 1 ENGINE FIRE LIGHT DOES NOT TEST IN AFT POSITION. REMOVED AND REPLACED BURNED OUT BULB.

Part: TURBINE — DAMAGED (NR 2 ENGINE)

TURBINE WAS REMOVED FROM AIRCRAFT DUE TO CRACKED EXHAUST COLLECTOR. REMOVED COMBUSTION SECTION AND FOUND HEAVY SULPHADATION AND CRACKS ON NR 1 WHEEL BLADES. CHECK NR 1 WHEEL FOR PROPER COATING ON BLADES.

Part: PLUG — CONTAMINATED (NR 2 ENGINE)

DURING PRESTART CHECK. AFT DETECTOR ON NR 2 ENGINE WOULD NOT TEST. WATER WAS FOUND IN THIS PLUG, IT WAS DRIED OUT AND TESTED GOOD.

Part: PLUG — CONTAMINATED (NR 2 ENGINE)

DURING PRESTART CHECK, AFT DETECTOR ON NR2 ENGINE WOULD NOT TEST. WATER WAS FOUND IN THIS PLUG, IT WAS DRIED OUT AND TESTED GOOD.

Part: MASTER CYLINDER — FAILED (BRAKE SYSTEM)

UPON TOUCH DOWN ON PAD, THE LEFT WHEEL BRAKE FAILED TO HOLD. AIRCRAFT TURNED 45 DEGREES TO THE RIGHT. PILOT ON CONTROLS PUT IN LEFT PEDAL AND PULLED POWER STOP TURN. AIRCRAFT WAS REPOSITIONED ON THE PAD AND SHUT DOWN.

Part: SUPPORT — CRACKED (HOT SECTION)

TURBINE REMOVED FOR 2,000-HOUR OVERHAUL AND DID NOT STATE THAT ENGINE OR TURBINE WAS SMOKING OR USING OIL. WHEN COMBUSTION REMOVED, DISCOVERED THE FIRST STAGE NOZZLE HAD OIL STAINS ON THE VANES AND THE GP SUPPORT HAD OIL STAINS AROUND THE STRUT THAT WAS CRACKED. THE STRUT WAS BADLY WORN FROM FRETTING WEAR BY THE FIRST STAGE NOZZLE SHIELD THROUGH THE WALL OF THE STRUT CAUSING OIL TO LEAK. THIS CRACK WAS ON THE PRESSURE SIDE OF THE SUPPORT.

Part: BLADE — DEBONDED (M/R)

DISCOVERED DURING 11,750 HOUR INSPECTION, M/R BLADE, LOWER ROOT END LAMINATE DEBONDED BEYOND ALLOWABLE LIMITS PER SA4047-76-5, CHAPTER 2. SENT TO SIKORSKY AIRCRAFT FOR FURTHER EVALUATION/REPAIR.

Part: JURY BRACE — FAILED (RT GEAR)

DURING LANDING CHECK, THE RIGHT MAIN LANDING GEAR FAILED TO LOCK DOWN. AFTER RECYCLING THE LANDING GEAR, THE PROBLEM REMAINED. RETURNED TO BASE. FOUND RIGHT HAND JURY BRACE BROKEN. REPLACED BRACE AND SWUNG GEAR. OPS CHECK GOOD. RETURNED TO SERVICE AT 1,745 HOURS.

Part: VENT BLOWER — FAILED (CABIN)

THERE WAS A REPORT OF FUMES IN THE CABIN AREA. FOUND CABIN VENT BLOWER TO BE CAUSING ODOR.

Part: AMPLIFIER — MALFUNCTION (BAGG)

AFTER TAKEOFF, THE NR 1 ENGINE FIRE LIGHT ILLUMINATED. ALL OTHER INDICATIONS WERE NORMAL. RETURNED TO BASE. REPLACED FIRE DETECTOR CONTROL AMP. OPS CHECK OK. (X)

Part: CONTROL AMP — INOPERATIVE (BAGGAGE)

BAGGAGE COMPARTMENT SMOKE DETECTOR LIGHT ILLUMINATED DURING FLIGHT. NO FIRE. DURING TROUBLESHOOTING, FOUND SMOKE DETECTOR CONTROL AMP INOPERATIVE. REPLACED CONTROL AMP.

Part: LONGERON — CORRODED (STA 215-300)

DISCOVERED DURING A/C REFURB, LT LOWER LONGERON WITH EXCESSIVE CORROSION. PARTS WERE CLEANED, TREATED, AND PRIMED WITH SUPER KOROPON AND REINSTALLED.

Part: LONGERON — CORRODED (STA 215-300)

DISCOVERED DURING A/C REFURB, RT LOWER LONGERON WITH EXCESSIVE CORROSION. PARTS WERE CLEANED, TREATED, AND PRIMED WITH SUPER KOROPON AND REINSTALLED.

Part: LONGERON — CORRODED (STA 215-300)

DISCOVERED DURING A/C REFURB, RT UPPER LONGERON, STA 215-300, CRACKED, PART UNSERVICEABLE.

Part: VERTICAL PYLON — CORRODED (AFT FUSELAGE)

DISCOVERED DURING A/C REFURB, VERTICAL PYLON HAS EXCESSIVE CORROSION REQUIRING COMPLETE DISASSEMBLY OF PYLON ASSEMBLY. PARTS WERE CLEANED, TREATED, PRIMED WITH SUPER KOROPON PRIMER AND REASSEMBLED. NO MAJOR PARTS REQUIRED REPLACEMENT.

Part: ATTACH FITTING — CORRODED (T/B STA 300)

DISCOVERED DURING A/C REFURB, T/B ATTACH FITTING, STA 300, WITH EXCESSIVE CORROSION, PART UNSERVICEABLE.

Part: GLAND — WORN (SERVO)

DURING IN-SHOP TEAR DOWN OF ACTUATOR FOR INSPECTION AND REPAIR DUE TO LEAKING, FOUND ID OF GLANDS, 2 EACH, WORN PAST LIMITS BY MOVEMENT OF PISTONS THROUGH GLANDS.

Part: SPRING — MISSING (SERVO)

SERVO ACTUATOR WAS SENT TO HYDRAULIC SHOP FOR REPAIR DUE TO LEAKING. SERVO TT 6303.5. TIME SINCE OVERHAUL: 1665.7. DURING TEAR DOWN OF ACTUATOR FOR REPAIR, NOTED 2 SPRINGS, PN 30006822, HAD NOT BEEN INSTALLED AT OVERHAUL BY MANUFACTURER. ABSENCE OF THESE SPRINGS WOULD DISALLOW PROPER SPRING LOADING OF THE SERVO VALVE SECONDARY SPOOL IN THE EVENT OF PRIMARY SPOOL JAMMING IN SYSTEMS NR 1 OR NR 2.