N924PA

Piper PA28 No injuries Part 91 — AeroGuard Flight Training Center

Operated by AeroGuard Flight Training Center (per NTSB report)

ATA 8530

Part: CYLINDER HEAD — CRACKED (ENGINE) · airframe 21,489 hrs

DURING A SCHEDULED INSPECTION, EXCESS OIL WAS OBSERVED ON THE COOLING FINS ABOVE THE EXHAUST FLANGE, ATTEMPTED TO FIND SOURCE OF OIL BUT NO SOURCE WAS VISIBLE, ROCKER COVER WAS REMOVED AS WELL AS THE EXHAUST ROCKER ARM AND PUSH ROD AND TUBE, A DYE CHECK WAS DONE AND A CRACK WAS LOCATED ON THE O/B SIDE WALL OF THE EXHAUST SIDE OIL DRAIN CHANNEL UNDER THE ROCKER ARM.

ATA 5720

Part: CHANNEL — CRACKED (RT WING) · airframe 21,047 hrs

DURING AN INSPECTION, BOTH HAT CHANNELS IN THE RIGHT WING WERE FOUND TO BE CRACKED AT THE INBD END,

ATA 5340

Part: BRACKET — CRACKED (ELT) · airframe 19,146 hrs

WHEN THE ELT WAS BEING REMOVED FOR INSPECTION, THE TECH DISCOVERED TWO 2" CRACKS NEXT TO THE NUTPLATES IN THE ELT MOUNTING BRACKET. THESE CRACKS CAN ONLY BE SEEN WHEN THE ELT TRAY IS REMOVED.

ATA 7920

Part: OIL COOLER — LEAKING (ZONE 200) · airframe 17,252 hrs

THE ACFT HAD LANDED AND WAS BEING PUT AWAY WHEN THE PILOTS NOTED THERE WAS OIL LEAKING FROM UNDER THE LT SIDE OF THE COWLING; THE LEAK TRAVELED THE LENGTH OF THE FUSELAGE AND HAD COATED THE LT WING AS WELL. THE PILOTS ALSO NOTED NO OIL WAS VISIBLE ON THE DIPSTICK; THEY HAD DEPARTED WITH 8 QUARTS AND FLOWN 1.4 HOURS. MAINTENANCE FOUND THE OIL COOLER WAS LEAKING FROM INSIDE THE PLEATS AND THE ENGINE HAD 3.5 QTS OF OIL LEFT, A LOSS OF 5 QTS IN 1.4 HOURS. THE OIL COOLER WAS INSTALLED NEW, THREE WEEKS PRIOR.

ATA 5340

Part: BRACKET — CRACKED · airframe 16,655 hrs

DURING A PROGRESSIVE INSPECTION EVENT, A BRACKET WAS FOUND CRACKED BELOW WHERE THE FLAP HANDLE IS MOUNTED. THE BRACKET IN QUESTION IS LOCATED IN THE TUNNEL IN THE CENTER OF THE CABIN FLOOR AND IS USED TO MOUNT THE FLAP HANDLE ASSLY. IT CONTAINS 2 NUT PLATES TO ALLOW THE HANDLE TO BE BOLTED THROUGH THE TUNNEL. THE CRACK IS IN THE UPPER RT CORNER OF THE BRACKET, BETWEEN THE NUT PLATE AND THE EDGE OF THE METAL. IT IS SPECULATED THAT CRACK IS CAUSED BY THE MOVEMENT OF THE FLAP HANDLE CAUSING STRESS TO THE BRACKET AND SURROUNDING STRUCTURE.

ATA 3245

Part: TUBE — FAILED (MLG TIRE) · airframe 15,616 hrs

AFTER RETURNING FROM FLIGHT, PILOT REPORTED RT MAIN TIRE FLAT. WHEEL ASSEMBLY REPLACED WITH A SERVICEABLE BUILT UP WHEEL ASSEMBLY. AFFECTED TUBE INSTALLED. REPAIR STATION HAS EXPERIENCED A NR OF TIRE TUBE FAILURES WITHIN THE PAST 6 WEEKS; THESE FAILURES OCCURRED DURING NORMAL OPERATION OR WHEN THE ACFT WAS STANDING. THE MAJORITY OF FAILED TUBES ARE PN 092-315-0 TUBES. INSPECTION OF FAILED TUBES REVEALS SMALL, ELONGATED HOLES OR TEARS THAT ARE NOT LOCATED ON A SEAM IN THE RUBBER. THE HOLES ARE LOCATED ON THE TOP AND BOTTOM OF THE TUBE WHEN LAID FLAT. THE AFFECTED TUBES ARE INSTALLED IN 600X6X6PR TIRES, ARE SERVICED WITH 18 OR 24 PSI OF DRY NITROGEN, AND ARE INSTALLED ON ACFT THAT OPERATE BETWEEN 2100 AND 2500 LBS. THE REPAIR STATION LOCATION HAS NOT EXPERIENCED ANY SIGNIFICANT WEATHER CHANGES THAT WOULD AFFECT INFLATION PRESSURE.