N877AF

PILATUS AIRCRAFT LTD PC-12/47 No injuries Part 91 — Alpha Flying Inc.

Operated by Alpha Flying Inc. (per NTSB report)

ATA 3452

Part: TRANSPONDER — FAILED (ATC) · airframe 7,574 hrs · 7,260 cycles

ENROUTE, THE FLIGHT CREW REPORTED AN ELECTRICAL BURNING ODOR, POSSIBLY TRANSPONDER, ATC CONFIRMED THAT THEY WERE NOT RECEIVING TRANSPONDER DATA. DIVERTED AND MADE A SAFE UNSCHEDULED LANDING. AVIONICS FOUND THE KT 70 TRANSPONDER FAULTY. VERIFIED THIS UNIT BY ALSO NOTICING SLIGHT BURNING ODOR. REMOVED THE UNIT. VERIFIED AND INSPECTED THE CONDITION OF THE WIRING WITH NO DEFECTS NOTED. INSTALLED REPLACEMENT UNIT, ALL TESTED AND OPS CHECKED GOOD WITH NO FURTHER DEFECTS FOUND IAW DMC-12-A-34-54-01-00A-920A-A AND COMPLETED ATC TRANSPONDER AUTOMATIC PRESSURE ALTITUDE REPORTING SYSTEM DATA CORRESPONDENCE TESTS AND INSPECTIONS.

ATA 2430

Part: MOTOR — BURNED OUT (ZONE 100) · airframe 4,765 hrs · 4,665 cycles

CRUISE FLIGHT, ODD ELEC NOISE, BUS TIE CAWS, NON-ESSENTIAL CAWS & FLICKERING BATTERY CAWS, BUS TIE & GEN 2 TIE RELAYS POPPED. BATTERY 1 AMPS DISCHARGING. STRONG ELEC ODOR INSIDE TAIL SECTION NOTED UPON LANDING. THE VCCS SYS DRIVE MOTOR PN 1134104-1, SN 992 WAS FOUND BURNED OUT & AT FAULT. THE MOTOR R & R IAW THE ENVIRO SYSTEMS R134A CMM CH 21-00-23. THE VCCS SYS OPERATIONS CHECKED GOOD. THE ACFT DC GENERATION ADJUSTMENT TEST WAS COMPLETED IAW 12-A-24-30-00-00A-903B-A. NO FURTHER DEFECTS WERE NOTED.

ATA 5210

Part: SKIN — DAMAGED (PAX DOOR) · airframe 3,515 hrs · 3,381 cycles

THE ACFT MAIN ENTRY DOOR HAD DAMAGE TO THE OUTER SKIN THAT REQUIRED MAJOR REPAIR. THE DAMAGE WAS OUTSIDE THE LIMITS OF THE SRM. THE ACFT WAS REPAIRED USING THE RM-12-000036 /01 AND STATEMENT OF APPROVED DESIGN DATA REF NO EZ-SADD-12-0610 DATED 08 APRIL 2013.

ATA 3420

Part: DISPLAY — FAULTY (ZONE 200) · airframe 2,725 hrs · 2,666 cycles

PILOT REPORTS"EADI ON LT SIDE ZOOMS IN AND OUT GOING BLACK ON OCCASION." THE LT EADI PN 066-03125-2500 WAS FOUND TO BE FAULTY. IT WAS R & R WITH A SERVICEABLE UNIT OF THE SAME PN, IAW THE AMM 12-A-34-26-03-00A-920A-A AND TESTED GOOD IAW 12-A-34-26-00-00A-903B-A.

ATA 5551

Part: FITTING — OUT OF ALIGNMENT (ZONE 300) · airframe 2,538 hrs · 2,505 cycles

THE HORIZONTAL STABILIZER ATTACHMENT FITTING, WHERE THE PITCH TRIM ACTUATOR IS SECURED TO THE STABILIZER. LUGS ARE SEPARATING. THE GAP WAS MEASURED WITH A FEELER GUAGE, AND FOUND TO BE .635MM. THERE IS NO EVIDENCE OF DAMAGE TO THE STABILIZER.

ATA 3421

Part: DISPLAY — FAULTY (EFIS) · airframe 2,496 hrs · 2,455 cycles

DURING AHRS SWING CHECKS THE NR 2 EHSI WAS FOUND FUZZY AND NEEDING REPLACEMENT. THE NR 2 EHSI WAS R & R WITH A SERVICEABLE UNIT OF THE SAME PN 066-03125-2500 IAW AMM 12-A-34-26-02-00A-920A-A AND TESTED SATISFACTORY IAW AMM 12-A-34-26-00-00A-903A-A.

ATA 3421

Part: EFIS — DEFECTIVE (ZONE 200) · airframe 2,342 hrs · 2,328 cycles

PILOT REPORTED: CO-PILOTS EADI FLASHING AND INTERMITTENT. THE NR 2 EADI, PN 066-03125-2500 WAS R & R WITH A SERVICEABLE UNIT OF THE SAME PN IAW AMM DMC-12-A-34-26-03-00A-920A-A, OPS CHECK GOOD IAW AMM DMC-12-A-34-26-00-00A-903A-A.

ATA 2751

Part: PROXIMITY SENSOR — FAULTY (TE FLAPS) · airframe 1,964 hrs · 1,870 cycles

PILOT REPORTED FLAP CAWS AFTER SELECTING FROM 0 TO 15 DEGREES. 1 RESET ON GROUND PERFORMED ON PREVIOUS LEG. RESOLUTION TO CORRECT THIS SITUATION IS AS FOLLOWS. THE LT FLAP ROTATION TRANSMITTER PN 973.30.33.112 WAS AT FAULT AND WAS REPLACED, IAW AMM 12-A-27-50-03-00A-920A-A. ALL ASSOCIATED TESTS WERE COMPLETED AND NO FURTHER FAULTS OR DEFECTS FOUND WITH THE SYS.

ATA 3240

Part: BRAKE DISC — BROKEN (ZONE 700) · airframe 986 hrs · 930 cycles

DURING A 100 HOUR INSPECTION DISCOVED THE RIGHT MAIN LANDING GEAR BRAKE ASSEMBLY OUTBOARD DISC WAS BROKEN. REMOVED BRAKE ASSEMBLY AND REPLACED WITH AN OVERHAULED BRAKE ASSEMBLY IN ACCORDANCE WITH MANUFACTURERS MAINTENANCE INSTRUCTIONS.

ATA 3240

Part: BRAKE DISC — BROKEN (MLG) · airframe 983 hrs · 925 cycles

WHILE REMOVING THE LEFT MAIN WHEEL ASSEMBLY FOR A FLAT TIRE DURING AN INCIDENT IN BDR, DISCOVERED THE OUTBOARD BRAKE DISC WAS BROKEN. REMOVED BRAKE ASSEMBLY, SENT TO OVERHAUL AND REINSTALLED IN ACCORDANCE WITH MAINTENANCE MANUAL INSTRUCTIONS AFTER OVERHAUL.