N467AL

Part: BOTTLE — LOW PRESSURE (ZONE 800) · airframe 10,366 hrs · 2,856 cycles

AIRCRAFT WAS NOT GROUNDED: LEFT HAND AFT PASSENGER / CREW DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PRESSURE LOW. SERVICED DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PER AMM 52-10-00.

Part: BOTTLE — LOW PRESSURE (ZONE 800) · airframe 10,366 hrs · 2,856 cycles

AIRCRAFT WAS NOT GROUNDED: RIGHT HAND AFT PASSENGER / CREW DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PRESSURE LOW. SERVICED DOOR DAMPER AND EMERGENCY OPERATION CYLINDER PER AMM 52-10-00.

Part: SLIDE — OUT OF POSITION (ZONE 800) · airframe 8,415 hrs · 2,334 cycles

AIRCRAFT WAS GROUNDED: FIRST FLIGHT ATTENDANT REPORTED A LOUD BANG COMING FROM DOOR 1L WHILE DESCENDING INTO CHARLOTTE. MAINTENANCE FOUND THE L1 SLIDE OFF THE ALIGNMENT HOOKS, SLIDE COVER RUBBING FUSELAGE WHEN DOOR OPEN/CLOSED. MAINTENANCE REMOVED L1 DOOR SLIDE + LINERS, PRESSURIZED AIRCRAFT AND NOTED NO NOISE. MAINTENANCE RE-INSTALLED LINERS AND SLIDE, ALONG WITH A NEW SLIDE COVER AND PRESSURIZED THE AIRCRAFT AGAIN WITH NO NOISE NOTED.

Part: BATTERY — NO TEST (ZONE 200) · airframe 8,277 hrs · 2,298 cycles

AIRCRAFT WAS NOT GROUNDED: DURING OPERATIONAL TEST OF EMERGENCY LIGHTING SYSTEM MAINTENANCE FOUND FAULT MESSAGE FOR EMERGENCY POWER SUPPLY UNIT 13WL. REPLACED EMERGENCY POWER SUPPLY UNIT 13WL (AALA202502286081) AND BATTERY (AALA202502282301) PER AMM 33-51-38. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO FAULTS NOTED.

Part: POWER SUPPLY — NO TEST (ZONE 200) · airframe 8,277 hrs · 2,298 cycles

AIRCRAFT WAS NOT GROUNDED: DURING OPERATIONAL TEST OF EMERGENCY LIGHTING SYSTEM MAINTENANCE FOUND FAULT MESSAGE FOR EMERGENCY POWER SUPPLY UNIT 13WL. REPLACED EMERGENCY POWER SUPPLY UNIT 13WL (AALA202502286081) AND BATTERY (AALA202502282301) PER AMM 33-51-38. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO FAULTS NOTED.

Part: SMOKE DETECTOR — FALSE ACTIVATION (ZONE 900) · airframe 7,931 hrs · 2,196 cycles

AIRCRAFT WAS NOT GROUNDED: LAVATORY SMOKE ECAM MESSAGES APPEARED TWICE IN APPROXIMATLEY 2 MINUTES. FLIGHT ATTENDANTS REPORT NO INDICATION OF SMOKE, FUMES, OR ODOR IN ANY LAVATORIES. MAINTENANCE ACCOMPLISHED SMOKE DETECTION SYSTEM TEST PER TSM 26-17-00-810-819-A WITH NO DEFECTS NOTED.

Part: BATTERY — INOPERATIVE (ZONE 200) · airframe 7,049 hrs · 1,954 cycles

AIRCRAFT WAS NOT GROUNDED: FLIGHT ATTENDANT ADVISED FORWARD MEGAPHONE DOES NOT CLICK. MAINTENANCE REPLACED BATTERIES IN FORWARD MEGAPHONE AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 25-65-51.

Part: WIRE HARNESS — BROKEN (EMERGENCY LIGHT) · airframe 4,603 hrs · 1,249 cycles

AIRCRAFT WAS GROUNDED: SEAT MOUNTED EMERGENCY LIGHT AT 27L INOPERATIVE. MAINTENANCE SPLICED WIRE HARNESS PER ESPM 20-43-10 AND ACCOMPLISHED A SATISFACTOR OPERATIONAL CHECK.

Part: TRIM SWITCH — DEFECTIVE (ZONE 200 - FUSE) · airframe 2,150 hrs · 594 cycles

AIRCRAFT WAS GROUNDED: ON APROACH INTO DFW AFTER AUTOPILOT DISENGAGEMENT AT 1,000 AGL, RUDDER TRIM WENT TO FULL LEFT TRIM, KNOB WOULD NOT WORK. FLIGHT CREW RESET ON GROUND TO ZERO, BUT DUIRNG TAXI IN THE RUDDER TRIM WENT TO FULL LEFT AGAIN. MAINTENANCE REPLACED RUDDER TRIM CONTROL SWITCH 9CC PER AMM 22-62-11. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.

Part: AIR FILTER — DIRTY (ZONE 900 - LAV/G) · airframe 1,248 hrs · 348 cycles

AIRCRAFT WAS NOT GROUNDED: FIRST CLASS GALLEY CHILLER BECAME VERY HOT AND PRODUCED BURNING ODOR. CREW TURNED OFF CHILLER. : MAINTENANCE CLEANED GALLEY AIR CHILLER AIR FILTER PER AMM 25-34-00 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK WITH NO DEFECTS NOTED. ** (CLOSED)

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 1,248 hrs · 348 cycles

AIRCRAFT WAS NOT GROUNDED: FIRST CLASS GALLEY CHILLER BECAME VERY HOT AND PRODUCED BURNING ODOR. CREW TURNED OFF CHILLER. **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)

Part: PINION GEAR — GALLED (GEARBOX)

GEARBOX WAS REMOVED DUE TO FWU BORE DAMAGE. UPON INSPECTION OF CHIP DETECTORS, FOUND METAL ON BOTH PLUGS. AFTER DISASSEMBLY FOUND EXCESSIVE GALLING ON TM AND PINION GEARS CAUSE FOR METAL. METAL CONTAMINATION WAS GENERATED FROM UNFINISHED MACHINING OF TM GEAR TEETH AT RADIUS. THIS CAUSED GALLING TO PINION GEARS. ASSURE PROPER MACHINING AND MESHING OF GEAR TEETH AND RADIUS AT FACTORY.

Part: GEAR — MISMANUFACTURED (GEARBOX)

GEARBOX WAS REMOVED DUE TO FWU BORE DAMAGE. UPON INSPECTION OF CHIP DETECTORS, FOUND METAL ON BOTH PLUGS. AFTER DISASSEMBLY FOUND EXCESSIVE GALLING ON TM AND PIINION GEARS CAUSE FOR METAL. METAL CONTAMINATION WAS GENERATED FROM UNFINISHED MACHINING OF TM GEAR TEETH AT RADIUS. THIS CAUSED GALLING TO PINION GEAR. ASSURE PROPER MACHINING AND MESHING OF GEAR TEETH AND RADIUS AT FACTORY.

Part: BEARING — WORN (TAIL ROTOR)

DURING DAILY, HIGH TEMP AND VIBE FROM 103 BEARINGS, GREY GREASE. (M)

Part: DUCT — CRACKED (OIL COOLER)

UPON DAILY INSPECTION, CRACKED IN CORNERS CAUSED BY INHERENT VIBRATIONS. (X)

Part: DISC PACK — CRACKED (T/R DRIVE)

DURING 25-HOUR AD INSPECTION, FOUND THE LAST DISC IN THE COUPLING CRACKED (WITH PACK FACING FORWARD) MID-SPAN. (X)

Part: BEARING — ROUGH (T/R DRIVESHAFT) · airframe 4,653 hrs

TAIL ROTOR DRIVESHAFT IN FOR REPAIR OF RIVET MISSING FROM OIL COOLER BLOWER HOUSING. FOUND BEARING ROUGH. (X)

Part: DUCT — CRACKED (OIL COOLER)

UPON DAILY INSPECTION, FOUND CRACKS IN CORNERS CAUSED BY INHERENT VIBRATIONS. (X)

Part: BEARING — ROUGH (T/R DRIVESHAFT) · airframe 4,653 hrs

TAIL ROTOR DRIVESHAFT IN FOR REPAIR OF RIVET MISSING FROM OIL COOLER BLOWER HOUSING. FOUND BEARING ROUGH. (X)

Part: BEARING — FAILED (TAIL ROTOR)

DURING STRAIGHT AND LEVEL FLIGHT AT 3,700 FEET, TWO SHARP VIBRATIONS, EACH LASTING TWO SECONDS, APPROXIMATELY ONE SECOND APART WERE FELT IN THE AIRFRAME. A PRECAUTIONARY LANDING AT NEAREST PLATFORM WAS ACCOMPLISHED. DURING POST-FLIGHT INSPECTION, NOTICED INDIVIDUAL BEARING BALLS FROM THE NR 2 DRIVE SHAFT HANGER BEARING WERE NO LONGER IN THE BEARING ASSEMBLY. NOTIFIED MAINTENANCE. UNCONTAINED FAILURE OF FORWARD BEARING ON THE NR 2 SHAFT AND BLOWER ASSEMBLY.

Part: BEARING — CRACKED (TAIL ROTOR)

FOUND HOUSING 206-061-432-116 CRACKED. FOUND 2 EACH BEARINGS 407-340-339-109 ROUGH. FOUND SHAFT 406-040-320-101 SPLINES WORN.

Part: SHAFT — WORN (TAIL ROTOR)

FOUND HOUSING 206-061-432-116 CRACKED. FOUND 2 EACH BEARINGS 407-340-339-109 ROUGH. FOUND SHAFT 406-040-320-101 SPLINES WORN.

Part: BEARING — WORN (ENGINE MOUNT)

ENGINE MOUNT BEARING WORN.

Part: DOOR — CORRODED (COWL)

ROUTINE INSPECTION, FOUND INTERGRANULAR CORROSION.

Part: DOOR — CORRODED (COWL)

ROUTINE INSPECTION. EXCESSIVE CORROSION (INTERGRANULAR).

Part: GEAR — MAKING METAL (GEARBOX)

ENGINE WAS REMOVED FOR TIME CHANGE TURBINE AND COMPRESSOR. UPON INSPECTION OF CHIP PLUGS, FOUND METAL CHIPS. DISASSEMBLED AND FOUND TORQUE METER GEAR AND PINION GEAR GALLING CAUSING SOME METAL CONTAMINATION DAMAGE TO THE PARTS. IMPROPER MESHING BETWEEN TORQUE METER GEAR AND PINION GEAR WAS CAUSE FOR GALLING. SECONDARY DAMAGE: PINION GEAR PN 6893672, SN NN76158. TT: 1,994.7 HOURS.