N567AL

ATA 6310

Part: SHAFT — WORN (FREEWHEEL UNIT)

DURING NORMAL OVERHAUL, FOUND SPLINE WORN BELOW MINIMUM.

ATA 5530

Part: SPACER — SPINNING (VERT STABILIZER)

REMOVING STABILIZER FROM AIRCRAFT AND NOTED SPACER SPINNING. WHILE STARTING TO REPAIR SPACER, BUBBLED PAINT WAS NOTED BY TIP CAP AND ON TRAILING EDGE CAPS. SPACER SPINNING IN HONEYCOMB, THE SPACER IS MANUFACTURED SMOOTH WITH NO SERATIONS TO PREVENT SPINNING. WHEN TRAILING EDGE CAPS WERE REMOVED ARCING DAMAGE WAS NOTED 4 INCHES DOWN FROM TIP. CABLE ASSEMBLY, ANTI-COLLISION LIGHT HAD CHAFED INSIDE CAPS AND CAPS SHOWED EVIDENCE OF ARCING.

ATA 6510

Part: BEARING — ROUGH (TAIL ROTOR)

DAILY INSPECTION, ROUGH BEARING AND EMITTING BLACK GREASE. (M)

ATA 6510

Part: BEARING — ROUGH (TAIL ROTOR)

DAILY INSPECTION, FOUND ROUGH BEARING AND EMITTING BLACK GREASE. (M)

ATA 3422

Part: GYRO — FAULTY (INSTRUMENT PANEL)

FLAG APPEARED IN DIRECTIONAL GYRO DURING CLIMB-OUT. CYCLED DIRECTIONAL GYRO SWITCH WAS HOT TO THE TOUCH, 2-3 SECONDS LATER LIGHT SMOKE AND SMELL OF BURNING WAS NOTED. INSPECTED C/B PANEL AND INSTRUMENT PANEL FOR BURNED OR ARCED WIRING. NO DEFECTS NOTED. REPLACED DIRECTIONAL GYRO. (M)

ATA 6220

Part: PITCH HORN — CORRODED (MAIN ROTOR)

DURING DISASSEMBLY FOR 2,500 HOUR OVERHAUL, FOUND PITCH HORN CORRODED DUE TO ADHESIVE NOT COMPATIBLE. (X)

ATA 6220

Part: ADAPTER — CORRODED (MAIN ROTOR)

DURING DISASSEMBLY FOR 2,500 HOUR OVERHAUL, FOUND ADAPTER CORRODED DUE TO PRIMER NOT COMPATIBLE. (X)

ATA 6220

Part: PITCH HORN — CORRODED (MAIN ROTOR)

DURING DISASSEMBLY FOR 2,500 HOUR OVERHAUL, FOUND PITCH HORN CORRODED DUE TO ADHESIVE NOT COMPATIBLE. (X)

ATA 5302

Part: SUPPORT — CRACKED (TAILBOOM)

DURING ROUTINE DAILY INSPECTION, FOUND LT UPPER SUPPORT FITTING, FIRST FORWARD SCREW CRACKED CRESENT SHAPED 1 INCH TO 1.50 INCHES.

ATA 7532

Part: BOLTS — LOSE (BLEED VALVE)

PRIOR TO INSTALLING BLEED VALVE ON TEST BENCH, AN INSPECTION OF ALL SAFETIES WAS ACCOMPLISHED AND FOUND 3 EACH BOLTS WERE SAFTIED BUT LOOSE. THESE BOLTS WERE IMPROPERLY TORQUED AND CAUSED A MAJOR AIR LEAK AT SPLIT LINES OF BLEED VALVE.

ATA 7210

Part: BEARING — GALLED (GEARBOX)

UPON DISASSEMBLY AND INSPECTION OF PARTS, FOUND T/M JOURNAL BEARING WITH EXCESSIVE GALLING ON END OF ROLLERS AND DEEP BANDING DOWN MIDDLE OF ROLLERS. EXCESSIVE GALLING AND BANDING OF T/M JOURNAL BEARING GALLING ON ROLLERS WAS ONLY TO OUTER PART OF ROLLERS AND BANDING WAS LOCATED ONLY IN MIDDLE OF ROLLERS.

ATA 7250

Part: BEARING — FAILED (FWD NR 5)

ENGINE REMOVED FOR MAKING METAL. UPON INSPECTION BEARINGS FOUND BAD NR 5 BEARING. SOURCE OF METAL WAS CAUSED BY GEARBOX TORQUE METER AND PINION GEAR DETERIORATING.