LONGHORN GATOR LLC.

Part: EEC — FAULTY (RT ENGINE) · airframe 4,325 hrs · 2,408 cycles

ON APPROACH BACK TO FLL FROM SCHEDULED TEST FLIGHT FOR TROUBLESHOOTING, THE AIRCRAFT EXPERIENCED A COMPRESSOR STALL AND ENGINE FLAME-OUT OF THE RT ENGINE. THE CREW DECLARED AN EMERGENCY AND MADE AN UNEVENTFUL SINGLE ENGINE LANDING. TROUBLESHOOTING REVEALED THAT THE RT ENGINE EEC HAD FAILED CAUSING THE ISSUE. THE EEC WAS REPLACED WITH A SERVICEABLE UNIT. GROUND RUNS WERE PERFORMED AND A TEST FLIGHT WITH NO ISSUES. AIRCRAFT HAS BEEN RETURNED TO SERVICE WITH NO FURTHER DEFECTS.

Part: O-RING — DAMAGED (ACTUATOR)

CREW REPORTED MAIN HYDRAULIC QUANTITY LOW CAS MESSAGE FOLLOWED BY MAIN SYSTEM HYDRAULIC PRESS AMBER CAS MESSAGE. NORMAL BRAKE FAIL WARNING. TROUBLESHOT SYSTEM TO HYDRAULIC FLUID LOSS FROM RT SPOILER ACTUATOR AT THE INLET SWIVEL FITTING. SWIVEL FITTING WAS NOTED TO BE SLIGHTLY LOOSE AND THE O-RING OUT. AREA/TRIM WAS NOT WORKED PREVIOUSLY FOR TWO YEARS. ORDERED AND REPLACED SWIVEL AND O-RING WITH NEW. SERVICED AIRCRAFT WITH HYDRAULIC FLUID AND PERFORMED OPERATIONAL CHECKS OF ALL SYSTEMS AND PUMPS WITH NO DEFECTS NOTED. RECEIVED A NEW MAINTENANCE TIME CONTROLLED ITEM FOR THE SPECIFIC SWIVEL PART FROM THE MANUFACTURE FOR REPLACEMENT EVERY 1200 HOURS. NO PREVIOUS REPLACEMENT WAS CONTAIN WITHIN THE MAINTENANCE PROGRAM. DATE OF NEW REVISION TO MAINTENANCE PROGRAM APRIL 20, 2018.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 6,793 hrs · 5,732 cycles

LEFT EMERGENCY PRESS ON (CAS) MESSAGE. EMERGENCY PRESS SWITCH ON. CAS MESSAGE INITIALLY APPEARED AT FL 410 AND CLEARED UPON DESCEND THEN CAME BACK ON AT 8,000 FEET.

Part: COMPUTER — INOPERATIVE (STALL WARNING) · airframe 7,215 hrs · 5,802 cycles

WHEN DOING LINEUP ITEM CHECKLIST, RECEIVED A RT AMBER AOA HEAT FAIL ACCOMPANIED WITH ORAL STALL. PERFORMED QRH PROCEDURE TO NO HELP. REMOVED AND REPLACED STALL WARNING COMPUTER IAW AMM 27-31-02. PERFORMED FUNCTIONAL TEST OF STALL WARNING COMPUTER IAW AMM 27-31-02 WITH NO DISCREPANCIES NOTED.

Part: UNKNOWN — MALFUNCTIONED (CABIN PRESSURE) · airframe 6,490 hrs · 5,545 cycles

CRUISING AT 410 CABIN JUMPED TO 10,000 EMERGENCY PRESSURE AMBER CAS MESSAGE CAME ON AND CABIN WAS STILL CLIMBING. EMERGENCY DECENT PER QRH, DIVERTED INTO KJAX.

Part: HYDRAULIC LINE — BROKEN (LT MLG) · airframe 5,292 hrs · 4,225 cycles

COMPLETE HYDRAULIC PRESSURE LOSS, LEFT AND RIGHT SYSTEMS. FOUND LEFT MAIN LANDING GEAR RETRACT ACTUATOR PRESSURE LINE LEAKING (BROKEN HOSE).

Part: OIL TUBE — CRACKED (FRONT FRAME)

A SMALL HAIRLINE CRACK AT THE SWEDGED 90 DEGREE ELBOW WHERE IT ATTACHES TO THE FRONT FRAME OIL FITTING. OIL PRESSURE FLUCTUATION OCCURRED DURING 2ND LEG OF A SCHEDULED TRIP.