N746TA

ATA 5511

Part: RIB — CRACKED (HORIZONTAL STAB)

DURING A SCHEDULED MAINT VISIT WHILE PERFORMING A HORIZONTAL STABILIZER ROLLER INSP OF THE HORIZONTAL STABILIZER IB RIB AND BRACKET ASSEMBLIES, THE LT IB RIB WAS FOUND CRACKED. DETAILED INSP INSTRUCTIONS OF THIS AREA ARE OUTLINED IN COMMUNIQUE' NR 70. MAINTENANCE REPLACED BOTH RIBS WITH IMPROVED ASSEMBLIES.

ATA 5512

Part: SKIN — CORRODED (HORIZONTAL STAB) · airframe 8,170 hrs · 6,532 cycles

DURING A SCHEDULED MAINTENANCE INSPECTION, TECHNICIANS FOUND MODERATE CORROSION ON BOTH HORIZONTAL STABILIZER LEADING EDGES. CORROSION WAS BEYOND REPAIRABLE LIMITS. BOTH LEADING EDGES WERE REPLACED.

ATA 2120

Part: UNKNOWN — ODOR (COCKPIT) · airframe 7,429 hrs · 5,863 cycles

BURNING SMELL IN COCKPIT ON APPROACH. PAX ON BOARD. GENERAL WALK AROUND INSPECTION BEFORE TAXI SHOWED NO OBVIOUS DAMAGE. TAXIED A/C WHILE OPERATING SYSTEMS, NO BURN SMELL. RAN A/C TO FULL POWER, OPERATED BLEED AIR AND ELECTRICAL SYSTEMS-COULD NOT DUPLICATE.

ATA 5514

Part: BRACKET — CRACKED (HORIZONTAL STAB) · airframe 7,292 hrs · 5,735 cycles

DURING A SCHEDULED MAINTENANCE VISIT WHILE PERFORMING A HORIZONTAL STABILIZER ROLLER BRACKET INSPECTION AS PART OF THE A / B LEVEL INSPECTION, THE RIGHT INBOARD HORIZONTAL STABILIZER ROLLER RIB STRUCTURE AND AN INTERNAL BRACKET WERE FOUND CRACKED. DETAILED INSPECTION INSTRUCTIONS OF THIS AREA ARE OUTLINED IN BEECHJET COMMUNIQUE' NUMBER 70.

ATA 2150

Part: MOTOR — BURNED (A/C PACK) · airframe 7,263 hrs · 5,715 cycles

CREW REPORTED THAT THE AIR CONDITIONING SYSTEM FAILED DURING DESCENT AND THE REFRIGERANT COMPRESSOR CIRCUIT BREAKER POPPED. THERE WAS A STRONG SMOKE ODOR IN THE BAGGAGE COMPARTMENT. MAINTENANCE ISSUED MEL 21-16 FOR THE VAPOR CYCLE AIR CONDITIONING SYSTEM AND THE AIRCRAFT WAS RETURNED TO SERVICE. ON JUNE 09, 2006 MAINTENANCE REPLACED THE AIR CONDITIONING CONTROL RELAY, AC RECEIVER DRIER, AC COMPRESSOR DRIVE MOTOR AND AC COMPRESSOR DRIVE MOTOR FAN. THE REFRIGERANT COMPRESSOR CIRCUIT BREAKER WAS RESET AND THE AIR CONDITIONING SYSTEM WAS SERVICED WITH R-134A REFRIGERANT. OPERATIONAL AND LEAK CHECKS OF THE AIR CONDITIONING SYSTEM WERE SATISFACTORY, AND THE AIRCRAFT WAS RETURNED TO SERVICE.

ATA 2750

Part: CONTROL CABLE — BROKEN (RT TE FLAPS) · airframe 6,787 hrs · 5,321 cycles

DURING A ROUTINE MAINTENANCE VISIT WHILE PERFORMING "A" LEVEL INSPECTION, CORROSION WAS FOUND ON THE RT WING MAIN INBOARD FLAP FOLLOW UP CABLE AT THE END SWEDGE FITTING. WHILE CHECKING THE INTEGRITY IF THE CABLE IN THE FITTING, THE CABLE COMPLETELY SEPERATED FROM THE FITTING. THE RIGHT WING FLAP CABLE WAS REPLACED AND RIGGED. FLAP SYSTEM OPERATIONAL CHECKS WERE GOOD, AND THE AIRCRAFT WAS RETURNED TO SERVICE.

ATA 2750

Part: CABLE — BROKEN (TE FLAPS) · airframe 6,580 hrs · 5,126 cycles

FLAP FOLLOW-UP CABLE WAS DISCOVERED CORRODED AND BROKEN IN HALF DURING AN INSPECTION.

ATA 2750

Part: CABLE — BROKEN (ZONE 500) · airframe 6,580 hrs · 5,126 cycles

FLAP FOLLOW-UP CABLE WAS DISCOVERED CORRODED AND BROKEN IN HALF DURING AN INSPECTION.

ATA 3310

Part: PANEL — MELTED (COCKPIT) · airframe 6,161 hrs · 4,762 cycles

KPSP - KLAS TRIP ID# 743429 CREW REPORTED THAT THEY HEARD A POPPING SOUND COMING FROM THE CIRCUIT BREAKER PANEL. ARCHING HAD OCCURED FROM THE BOTTOM OF THE CIRCUIT BREAKER PANEL FOLLOWED BY A NOTICABLE SMOKEY SMELL. APPROXIMATELY TEN SECONDS LATER THE ARCHING HAD EXTINGUISHED AND VAPOR HAD CLEARED. THE CIRCUIT BREAKER PANEL LIGHTS WERE FOUND TO BE INOPERATIVE, AND A SMALL MELTED AREA ON THE PANEL WAS HOT TO THE TOUCH. THE LIGHTING FOR THE PANEL WAS ISOLATED AS WELL AS THE HEAT SOURCE WHEN THE CIRCUIT BREAKER FOR THE PANEL LIGHTING WAS PULLED. THE FLIGHT PROCEDED WITHOUT FURTHER INCIDENT. MAINTENANCE ISSUED MEL 33-6 FOR THE CIRCUIT BREAKER PANEL LIGHTING.ON 14 JANUARY, 2005 MAINTENANCE REMOVED AND REPLACED THE

ATA 3310

Part: CONTROL PANEL — ARCED (COCKPIT LIGHTS) · airframe 6,161 hrs · 4,762 cycles

CREW REPORTED THAT THEY HEARD A POPPING SOUND COMING FROM THE CIRCUIT BREAKER PANEL. ARCING HAD OCCURRED FROM THE BOTTOM OF THE CIRCUIT BREAKER PANEL FOLLOWED BY A NOTICEABLE SMOKY SMELL. APPROXIMATELY TEN SECONDS LATER THE ARCING HAD EXTINGUISHED AND VAPOR HAD CLEARED. THE CIRCUIT BREAKER PANEL LIGHTS WERE FOUND TO BE INOPERATIVE, AND A SMALL MELTED AREA ON THE PANEL WAS HOT TO THE TOUCH. THE LIGHTING FOR THE PANEL WAS ISOLATED AS WELL AS THE HEAT SOURCE WHEN THE CIRCUIT BREAKER FOR THE PANEL LIGHTING WAS PULLED. THE FLIGHT PROCEEDED WITHOUT FURTHER INCIDENT. MAINTENANCE ISSUED MEL 33-6 FOR THE CIRCUIT BREAKER PANEL LIGHTING.

ATA 5400

Part: COWLING — MISSING (LT ENGINE) · airframe 5,246 hrs · 4,002 cycles

AFTER DEPARTURE FROM WEST PALM THE PILOTS EXPERIENCED A VIBRATION AND A YAW IN THE AIRCRAFT. THE PILOTS DECIDED TO RETURN TO WEST PALM, AND AFTER LANDING WHEN THEY GOT OUT OF THE AIRCRAFT THEY NOTICED THE LT ENGINE COWL WAS COMPLETELY MISSING. THIS HAS HAPPENED SEVERAL TIMES ON OUR FLEET. THE CAUSE IS UNKNOWN, BUT COULD BE THE AIR GOT UNDER THE COWL AND STARTED TO PEEL IT BACK UNTIL THE COWL WAS COMPLETELY GONE.