N909LA

Part: CONTROL HANDLE — DEFECTIVE (MLG) · airframe 7,414 hrs · 5,950 cycles

AFTER DEPARTURE THE CREW WAS UNABLE TO RETRACT THE LANDING GEAR WHEN THE GEAR CONTROL HANDLE WAS SELECTED UP. THE CREW WAS ABLE TO RETURN AND LAND WITHOUT INCIDENT. TROUBLESHOOTING IDENTIFIED THE LANDING GEAR CONTROL HANDLE FAULTY. INSTALLED NEW CONTROL AND RETURNED THE AIRCRAFT TO SERVICE

Part: UPLOCK SWITCH — DEFECTIVE (NLG) · airframe 6,625 hrs · 5,382 cycles

AFTER TAKEOFF THE CREW REPORTED THAT AFTER GEAR RETRACTION THE GEAR UNSAFE ANNUNCIATOR REMAINED ILLUMINATED, THE HYD PRESS ANNUNCIATOR REMAINED ILLUMINATED FOLLOWED BY A STAB MIS COMPARE WARNING ANNUNCIATOR. THE LG WAS RECYCLED & THE FAULT CLEARED. TROUBLESHOOTING IDENTIFIED THE NLG UPLOCK SWITCH, S3 PN 65-430087 TO BE DEFECTIVE. THE SWITCH WAS R & R WITH A NEW UNIT. RIGGING WAS COMPLETED & THE ACFT WAS RETURNED TO SERVICE.

Part: CONTROL VALVE — DEFECTIVE · airframe 6,508 hrs · 5,272 cycles

ON TWO SEPARATE OCCASIONS THAT DURING THE TAKEOFF ROLL THAT THE ACM OVERHEAT ANNUNCIATOR ILLUMINATED. ABORTED TAKEOFF ON BOTH OCCASIONS. THE CREW COMPLETED TROUBLESHOOTING ACTIONS & COULD NOT DUPLICATE THE FAULT. THE SUBSEQUENT TAKEOFFS WERE NORMAL. TROUBLE SHOT THE SYS & FOUND THE LT CONTROL VLV PN 9912492-1 TO BE DEFECTIVE. THE VLV WAS REMOVED FROM SERVICE & REPLACED WITH AN OVERHAULED UNIT. OPERATIONS CHECKED OK.

Part: WASHER — WORN (NLG) · airframe 6,486 hrs · 5,252 cycles

DURING MX TO CHANGE TO NLG WHEEL IT WAS DISCOVERED THAT THE AFT ATTACH POINT FOR THE NLG ACTUATOR HAD EXCESSIVE PLAY. INSPECTION FOUND THE AFT ATTACH POINT ELASTOMER WASHERS PN 6242217-1 BADLY WORN. NEW ELASTOMER WASHERS WERE INSTALLED. THIS SAME DISCREPANCY WAS NOTED ON ANOTHER 560XL DURING THE NOSE GEAR TIRE CHANGE.

Part: PRESSURE SWITCH — FAILED (DE-ICE SYSTEM) · airframe 6,364 hrs · 5,156 cycles

THE FLIGHT CREW REPORTED THAT THE LT TAIL DEICE LIGHT STAYED ON DURING ALL PHASES OF FLIGHT. TROUBLESHOOTING IDENTIFIED THE LT TAIL DEICE PRESS SWITCH WAS DEFECTIVE, PN 1106P55-1. THE PRESS SWITCH WAS R & R WITH NEW.

Part: WIRE — DAMAGED (PITOT HEAT) · airframe 6,216 hrs · 5,041 cycles

THE CREW REPORTED THAT THE LT PITOT HEAT WARNING LIGHT WAS ON. TROUBLESHOOTING IDENTIFIED AN ELEC PIN INSIDE THE PROBE HEAT CONNECTOR AT THE PROBE TO HAVE A BROKEN WIRE SOLDER JOINT. REPAIRED THE WIRE AT CONNECTOR AS REQUIRED.

Part: SOLENOID — DEFECTIVE (DOOR VENT) · airframe 6,008 hrs · 4,855 cycles

CREW REPORTED THAT THE CABIN DOOR VENT SOLENIOD WAS INOPERATIVE. THIS IS THE 3RD SOLENIOD THIS YEAR, AND 5 TOTAL SINCE MAR/2011. THE SOLENIOD WAS REPLACED WITH NEW AND RIGGED IAW AMM. FUNCTIONAL SATISFACTORY.

Part: SOLENOID — DEFECTIVE (PAX DOOR) · airframe 5,883 hrs · 4,739 cycles

CREW REPORTED THAT THE MAIN CABIN ENTRY DOOR ANNUNCIATOR LIGHT WOULD NOT EXTINGUISH. TROUBLESHOOTING IDENTIFIED THE DOOR VENT SOLENIOD DEFECTIVE. THE SOLENOID WAS REPLACED WITH NEW. FUNCTIONAL CHECKS SATISFACTORY. PART HAS BEEN REPLACED ON THIS AIRCRAFT 4 TIMES IN THE LAST 1.5 YEARS AND 3 TIMES ON OUR OTHER ACFT IN THE LAST YEAR.

Part: CONTROL VALVE — DEFECTIVE (FLIGHT DECK) · airframe 5,816 hrs · 4,684 cycles

THE CREW REPORTED THAT THE FLIGHTDECK TEMP COULD NOT BE CONTROLLED IN FLIGHT. TROUBLESHOOTING IDENTIFIED THE RT TEMP CONTROL VALVE AS DEFECTIVE, PN 27241287-14. THE DEFECTIVE VALVE WAS REMOVED AND AN OVERHAULED UNIT WAS INSTALLED.

Part: SENSOR — DEFECTIVE (PRECOOLER DOOR) · airframe 5,816 hrs · 4,684 cycles

CREW REPORTED THAT THE RT PYLON PRE-COOLER DOOR STAYS OPEN ON GROUND. REMOVED THE RT TEMP SENSOR, PN 9914519-2, SN 6AY223. INSTALLED A NEW TEMP SENSOR OF THE SAME PN IAW THE MM 36-11-00. OPS CHECKS GOOD AT THIS TIME.

Part: ACTUATOR — FAILED (AILERONS) · airframe 5,802 hrs · 4,673 cycles

THE CREW REPORTED THE AILERON TRIM FREEZES UP IN FLIGHT. TROUBLESHOOTING SUSPECTED MOISTURE IN THE AILERON TRIM ACTUATOR. THE AILERON TRIM ACTUATOR WAS DISASSEMBLED CLEANED AND REGREASED, THE ACTUATOR WAS ASSEMBLED AND OPS CHECKS WERE SATISFACTORY IAW THE MM 27-10-00 AND THE CMM 27-10-01.

Part: CVR — NO TEST (COCKPIT) · airframe 5,679 hrs · 4,579 cycles

CREW REPORTED THE COCKPIT VOICE RECORDER WOULD NOT TEST. WAS REMOVED FOR REPAIRS. SAME UNIT INSTALLED AFTER REPAIRED.

Part: SOLENOID — DEFECTIVE (PAX DOOR VENT) · airframe 5,681 hrs · 4,576 cycles

THE CREW REPORTED THE CABIN DOOR ANNUNCIATOR WOULD NOT EXTINGUISH. TROUBLESHOOTING FOUND THAT THE CABIN VENT DOOR SOLENOID WAS DEFECTIVE. THIS HAS BEEN OUR THIRD DEFECTIVE SOLENOID IN THE LAST 12 MONTHS.

Part: SOLENOID — DEFECTIVE (PAX DOOR) · airframe 5,596 hrs · 4,516 cycles

CREW REPORTED THAT CABIN DOOR ANNUNICATOR LIGHT REMAINED ILLUMINATED AFTER THE CABIN DOOR WAS CLOSED. THE VENT DOOR SOLENOID WAS FOUND DEFECTIVE.

Part: DISPLAY — DEFECTIVE (STBY ATTITUDE) · airframe 5,535 hrs · 4,461 cycles

THE CREW REPORTED THAT DURING CRUISE FLIGHT THE STANDBY ATTITUDE INDICATOR DISPLAY SCREEN WENT BLANK. THE DEFECTIVE SECONDARY FLIGHT DISPLAY (STANDBY) WAS REMOVED SN M001386. AN O/H UNIT WAS INSTALLED. FUNCTIONAL CHECKS WERE SATISFACTORY. SN M001386 WAS O/H IN OCT 10, 2011 AND FAILED AFTER 8.6 HRS INSERVICE.

Part: DISPLAY — DEFECTIVE (STBY ATTITUDE) · airframe 5,526 hrs · 4,455 cycles

THE CREW REPORTED THAT DURING ACFT POWER UP THE STANDBY ATTITUDE INDICATOR DISPLAY WOULD INTERMITTENTLY LOCK UP. THE DEFECTIVE UNIT WAS REMOVED. AN OVERHAULED UNIT WAS INSTALLED, FUNCTIONAL CHECKS SATISFACTORY.

Part: AHRS — FAILED (NR 1) · airframe 5,469 hrs · 4,412 cycles

THE CREW REPORTED THE NR 1 AHRS FAILED IN FLIGHT. TROUBLESHOOTING FOUND THE NR 1 AHRS (S/N 2248) FAILED. INSTALLED A REPAIRED AHRS COMPUTER AND COMPLETED SATISFACTORY FUNCTIONAL CHECKS PER THE CESSNA 560XL MM 34-21-01.

Part: BEARING — LOOSE (NLG) · airframe 5,288 hrs · 4,279 cycles

THE CREW REPORTED THE LANDING GEAR UNLOCK ANNUNCATOR REMAINED ON AFTER GEAR RETRACTION AND THE HYD LIGHT STAYED ON. THIS HAS BEEN A REOCCURRING DISCREPANCY WITH THIS AIRCRAFT. EVERYTHING FROM THE ADJUSTMENT OF THE NOSE LANDING GEAR UPLOCK AND UPLOCK SWITCH TO REPLACEMENT OF THE NOSE GEAR UPLOCK SWITCH. TROUBLESHOOTING THIS TIME DISCOVERED THAT THE UPPER STRUT BEARING WAS LOOSE CAUSING THE NOSE STRUT TO BE OVEREXTENDING AFTER TAKEOFF CAUSING THE UNLOCK CONDITION, THIS WAS FOUND BY CHECKING THE LENGTH OF THE STRUT WITH THE AIRCRAFT JACKED OFF THE GROUND. THE BEARING WAS SECURED AND OPERATIONAL CHECKS WERE SATISFACTORY.

Part: GAUGE — DEFECTIVE (COCKPIT) · airframe 5,235 hrs · 4,234 cycles

N1/ITT GAUGE (RT), N1 DIGITS DO NOT LIGHT, TAPE IS OK. REMOVED THE DEFECTIVE GAUGE P/N 9912497-8 S/N 02030781A INSTALLED OVERHAULED GAUGE. FUNCTIONAL CHECKS SATISFACTORY.

Part: UPLOCK SWITCH — DEFECTIVE (MLG) · airframe 5,209 hrs · 4,215 cycles

AFTER TAKEOFF THE CREW ATTEMPTED TO RETRACT THE LANDING GEAR AND NOTED THE RED GEAR UNSAFE LIGHT ILLUMINATED. THE CREW CYCLED THE LANDING GEAR AND HAD THE SAME INDICATIONS. THEY SELECTED GEAR DOWN AND RETURNED TO STARTING POINT. MX TROUBLESHOT THE LANDING GEAR SYS AND FOUND THE NOSE GEAR UPLOCK SWITCH PN 65-430087 TO BE DEFECTIVE. THE SWITCH WAS REPLACED WITH NEW AND FUNTIONAL CHECKS WERE SATISFACTORY.

Part: SOLENOID — DEFECTIVE (DOOR VENT) · airframe 5,151 hrs · 4,175 cycles

CREW REPORTED CABIN DOOR ANNUNCIATOR REMAINED ILLUMINATED AFTER THE CABIN DOOR WAS CLOSED. TROUBLESHOOTING IDENTIFIED THE DOOR VENT SOLENOID AS DEFECTIVE. THE SOLENOID WAS REPLACED, FUNCTIONAL CHECKS WERE SATISFACTORY.