N709TA

Part: UPLOCK SWITCH — ERRATIC (LT MLG)

DURING CLIMB-OUT CREW REPORTED RED LIGHTS IN GEAR SELECT HANDLE ILLUMINATED FOLLOWED BY SLIGHT DECELERATION AND A THUMP. CREW SUSPECTS THE GEAR EXTENDED AND RETRACTED UNCOMMANDED. MAINTENANCE FOUND THE LT MLG UPLOCK SWITCH ERRATIC IN COLD TEMPERATURES. THE SWITCH WAS REPLACED.

Part: UNKNOWN — ODOR (CABIN) · airframe 7,784 hrs · 6,427 cycles

ON APPROACH CREW REPORTED BURNING SMELL FROM THE RT REAR FLOOR AREA. MAINTENANCE RAN THE AIRCRAFT BUT WAS UNABLE TO DETECT ANY SMELL IN ALL CABIN TEMPERATURE MODES (AUTO/MANUAL, HOT AND COLD). AIRCRAFT WAS RELEASED.

Part: RIB — CRACKED (HORIZONTAL STAB)

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

Part: BULB — BLOWN (MLG INDICATOR) · airframe 6,814 hrs · 5,521 cycles

KMRY - KOAK. AFTER THE LANDING GEAR WERE EXTENDED FOR LANDING THE RIGHT MAIN GEAR DOWN INDICATION DID NOT ILLUMINATE. THE CREW PERFORMED A GO-AROUND SO THEY COULD VERIFY GEAR POSITION BEFORE LANDING. NO GEAR WARNING HORN, AND NO RED GEAR HANDLE LIGHT WERE RECEIVED WHEN THE POWER LEVERS WERE REDUCED. THE GEAR INDICATOR WOULD NOT ILLUMINATE WHEN TESTED. A FLY-BY PAST THE TOWER WAS PERFORMED AND THE CREW WAS INFORMED THAT THE GEAR APPEARED TO BE DOWN. CFR RESPONSE WAS GIVEN FOLLOWING AN UNEVENTFUL LANDING IN KOAK. MAINTENANCE REPLACED THE RIGHT MAIN LANDING GEAR INDICATION LAMP. OPERATIONAL CHECKS WERE NORMAL USING GROUND POWER. THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: ANTI-SKID SYS — INOPERATIVE (MLG) · airframe 6,781 hrs · 5,483 cycles

WHILE SLOWING THROUGH APPROX 10 -15 KTS ON ROLLOUT, LOST BRAKING ACTION. ANTI-SKID SYS WAS SELECTED OFF, BRAKES RETURNED IMMEDIATELY. ONCE AC WAS SLOWED TO TAXI SPEED ANTI-SKID (ABS) SYS WAS SELECTED BACK ON AND BRAKES WERE AVAILABLE. MAINT ISSUED MEL 32-1 FOR ANTI-SKID SYS, AC WAS RETURNED TO SERVICE. NO DEFECTS WERE NOTED WHEN VARIOUS PWR AND CONTINUITY CHECKS WERE PERFORMED WITH PWR APPLIED TO SYS, AND WHILE BEING CHECKED IN BOTH GROUND AND AIR MODES. A HIGH SPEED TAXI WAS PERFORMED WITH ANTI-SKID SYS ON. NO FAULTS WERE NOTED DURING ALL PHASES OF TAXI. ANTI-SKID FUNCTIONAL CHECKS WERE GOOD. HYD RESERVOIR WAS SERVICED, AND AC WAS RETURNED TO SERVICE.

Part: BRAKE ASSY — LEAKING (LT MLG) · airframe 6,634 hrs · 5,344 cycles

TRIP ID NR 1013020, THE CREW REPORTED THAT THE BRAKES FAILED ON LANDING WHILE SLOWING THROUGH APPROXIMATELY 20 KNOTS. AFTER A FEW SECONDS POWER BRAKING OPERATED NORMALLY. NO DISCREPANCIES WERE NOTED WHEN MAINTENANCE PERFORMED ANTI-SKID RESPONSE SYSTEM CHECKS. THE LT BRAKE WAS FOUND TO BE LEAKING AND WAS REPLACED. OPERATIONAL CHECKS OF THE BRAKING SYSTEM WERE NORMAL AND THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: ODOR — DETECTED (COCKPIT) · airframe 6,373 hrs · 5,105 cycles

DURING T/O A HEAVY ODOR SIMILAR TO MELTING PLASTIC COMING FROM PAX COMPT AT TIME OF DISCOVERY, TEMP CONTROL WAS SET ON AUTO, TEMP KNOB IN HOT POSITION. CREW DONNED THEIR OXYGEN MASKS & TURNED OFF ALL CABIN HEAT. APPROX 10 MINS ODOR DISSIPATED. A NORMAL LANDING. MX INSPECTED CABIN TEMP CONTROL VALVES FOR PROPER OPERATION & LEAKS, AND CHECKED TEMP SENSOR RESISTANCE. NO DEFECTS NOTED. AFTER CLEANING CABIN TEMP SENSOR, AND OPERATIONALLY CHECKING TEMP CONTROLS, AFT HEAT VENT WAS FOUND TO BE VERY HOT. BEECHCRAFT SB 21-3289 FOR REDUCING HEAT VENT TEMPERATURE INSTALLED USING KIT 128-5043-1. OPS CHECKS AFTER KIT INSTALLATION WERE GOOD. A/C WAS RETURNED TO SERVICE.

Part: WARNING LIGHT — ILLUMINATED (HYD SYSTEM) · airframe 6,327 hrs · 5,065 cycles

KRFD - KSDF DURING CRUISE FLIGHT, WHILE ENRANGE TO KLEX, THE CREW NOTED THAT THE HYDRAULIC FLUID PRESSURE WAS INDICATING 2,000 PSI. DUE TO A LONGER RUNWAY LENGTH THE AIRCRAFT WAS DIVERTED TO KSDF AND AN EMERGENCY WAS DECLARED. A MANUAL GEAR EXTENSION WAS PERFORMED AND AN UNEVENTFUL WAS MADE. EMERGENCY BRAKES WERE USED TO STOP THE AIRCRAFT.

Part: CONNECTOR — DEFECTIVE (HYD SYSTEM) · airframe 6,217 hrs · 4,961 cycles

CREW REPORTED DURING CRUISE FLT, HYDRAULIC PRESSURE INDICATED 2,000 PSI AND ON RED LINE. WHEN PRESSURE RELIEF SWITCH MOVED, HYDRAULIC PRESSURE INDICATED 100 PSI. DUE TO A LONGER RUNWAY LENGTH AIRCRAFT DIVERTED TO KLGB AND AN EMERGENCY DECLARED. A MANUAL GEAR EXTENSION PERFORMED AND AN UNEVENTFUL NO FLAPS LANDING MADE. EMERGENCY BRAKES WERE USED TO STOP ACFT. MX DISCOVERED SEVERAL AREAS OF NICKED WIRING FOR HYDRAULIC PRESSURE INDICATION. AREAS OF NICKED WIRE REPLACED. A CONNECTOR FOUND TO BE DEFECTIVE AND REPLACED. AIR REMOVED FROM EMERGENCY BRAKING SYS, AND SEVERAL LANDING GEAR EXTENSION AND RETRACTION CYCLES WERE COMPLETED. ALL OPERATIONAL CHECKS WERE NORMAL. THE AIRCRAFT RETURNED TO SERVICE.

Part: PUMP — WORN (RIGHT ENGINE) · airframe 6,173 hrs · 4,920 cycles

THE CREW REPORTED THAT THE HYDRAULIC PRESSURE WAS READING HIGH IN FLIGHT. WHEN THE HYDRAULIC PRESSURE DROPPED TO ZERO THE CREW CLOSED THE EMERGENCY DUMP VALVE. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT WAS DIVERTED TO KSAN DUE TO THE HIGHER RUNWAY LENGTH IN THE EVENT THAT THE EMERGENCY BRAKES WOULD HAVE TO BE USED. WHEN THE AIRCRAFT WAS LANDED, THE USE OF NORMAL BRAKES RESULTED IN HYDRAULIC PRESSURE FLUCTUATIONS. MAINTENANCE REPLACED THE NR 2 ENGINE DRIVEN HYDRAULIC PUMP. NEW HYDRAULIC PACK FILTERS WERE INSTALLED FOR THE LEFT AND RIGHT POSITIONS. GROUND RUN OPERATIONAL CHECKS WERE NORMAL. THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: BRAKE ASSY — WORN (LT MLG) · airframe 5,658 hrs · 4,476 cycles

CREW REPORTED, AFTER LANDING THE BRAKES FAILED AFTER 50 KTS. EMERGENCY BRAKING SYSTEM WAS USED TO STOP THE AIRCRAFT. MAINTENANCE FOUND THE LEFT AND RIGHT BRAKE ASSEMBLIES TO BE WORN. THE LEFT AND RIGHT BRAKE ASSEMBLIES WERE REPLACED. MANUAL AND POWER BRAKE BLEEDING WAS PERFORMED FOR BOTH LEFT AND RIGHT BRAKE ASSEMBLIES. THE EMERGENCY BRAKE HYDRAULIC TANK AND NITROGEN BOTTLE WERE SERVICED. A SATISFACTORY OPERATIONAL TAXI TEST OF THE BRAKE AND ANTI-SKID SYSTEM WAS PERFORMED. AIRCRAFT WAS RETURNED TO SERVICE.

Part: PUMP — OUT OF LIMITS (HYD SYSTEM) · airframe 5,511 hrs · 4,357 cycles

CREW REPORTED, IN CLIMB, NOTICED HYD PRESS FLUCTUATING ABOVE NORM. AFTER FL390, PRESS STABLE FOR 5 TO 10 MINS THEN INCREASED TO 2000 PSI AND HELD. EMERG DECLARED. A/C LANDED USING ALT GEAR EXTENSION, WITH A NO FLAPS APPROACH. PWR BRAKE FAILURE CHECKLIST USED. NO FURTHER PROBLEMS DURING LANDING. MX FOUND LOOSE WIRE SPLICE FOR NR 4 WIRE OF HYD PRESS XMITTER CANNON PLUG. NEW SPLICE INSTALLED, OPS CHECK OF HYD PRESS IND WAS PERFORMED. SPEED BRAKES, FLAPS, L/G, THRUST REVERSERS, AND BRAKE SYSTEMS WERE BLED. THE N2 BLOW DOWN BOTTLE WAS SERVICED. OP`S CHECK WAS GOOD. PROBLEM REOCCURED DURING TEST FLT LT/RT ENG DRIVEN HYD PUMPS AND RT HYD PUMP DRAIN LINE REPLACED. TEST FLT COMPLETED. A/C RETURNED TO SERV.

Part: MOUNT BRACKET — CRACKED (LT ENGINE) · airframe 3,201 hrs · 2,412 cycles

WHILE PERFORMING A ROUTINE SCHEDULED INSPECTION, INSPECTORS NOTED THE LT FORWARD ENGINE MOUNT BRACKET TO BE CRACKED APPROX 75 PERCENT THROUGH THE LOWER HALF.

Part: BLEED VALVE — FAILED (RT ENGINE) · airframe 2,628 hrs · 1,932 cycles

WHILE IN CRUISE FLIGHT FROM KBCT TO KBVT AT FL410 THE FLIGHT HEARD A LOUD BANG FOLLOWED BY OSCILLATIONS ON THE ROLL AXIS. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT WAS LANDED AT KLACY WITH NO FURTHER PROBLEMS. REPLACED RT ENGINE BLEED ACTUATOR VALVE PER PWC JT15D-5 MM 72-30-00. OPS CHECK GOOD. TEST FLIGHT WAS SATISFACTORY.