N560HN

ATA 7320

Part: COMPUTER — FAULTY (FUEL CONTROL) · airframe 3,752 hrs · 2,941 cycles

WHILE IN THE CRUISE STAGE OF FLIGHT AT FL 410 THE FLIGHT CREW EXPERIENCED AN ENGINE FAILURE OF THE NR ENGINE. THIS OCCURRED AS THEY CAME OUT OF CROSS FEED GOING FROM THE LEFT TANK TO THE RIGHT ENGINE. THE ENGINE JUST FLAMED OUT, AND N2 ROLLED ITSELF BACK TO 11-13%. RAN THE CHECKLISTS. SECURED THE ENGINE SAFELY. FOLLOWED THE AIR START CHECK LIST. THE ITT WAS RISING, FUEL FLOW WAS RETURNING. ON INTRODUCING FUEL FLOW AT 8% N2 AN ODOR OF FUEL ENTERED THE FLIGHT DECK AND CABIN. ABORTED THE RESTART. SECURED THE ENGINE. DECLARED AN EMERGENCY. PERFORMED A SINGLE ENGINE APPROACH TO A SAFE LANDING. TROUBLESHOOTING DETERMINED THAT THE NR 2 ENGINE FUEL CONTROL COMPUTER WAS DEFECTIVE AND WAS REPLACED. GROUND OPS CHECKED SATISFACTORY.

ATA 2740

Part: PCB — DEFECTIVE (HORIZONTAL STAB) · airframe 3,711 hrs · 2,903 cycles

FLIGHT CREW REPORTED THAT DURING FLIGHT THEY RECEIVED A STAB MISCOMPARE ANNUNCIATOR ILLUMINATED AND WOULD NOT EXTINGUISH AFTER SEVERAL CYCLES OF THE FLAPS. TROUBLESHOOTING IDENTIFIED THE TWO-POSITION HORIZONTAL STAB PCB N2017 DEFECTIVE. THE PCB WAS REPLACED WITH NEW AND THE AIRCRAFT WAS RETURNED TO SERVICE.

ATA 8097

Part: CIRCUIT BOARD — FAILED (STARTER) · airframe 3,692 hrs · 2,884 cycles

THE FLIGHT CREW REPORTED INTERMITTENT TROUBLE WITH THE NR 1 ENGINE NOT STARTING. MAINTENANCE TROUBLESHOT AND FOUND THE START CONTROL PCB WAS DEFECTIVE. THE DEFECTIVE PCB WAS REMOVED AND A NEW PCB INSTALLED P/N 6318324-5

ATA 3445

Part: PROCESSOR — DEFECTIVE (TCAS) · airframe 2,961 hrs · 2,356 cycles

CREW REPORTED THE TCAS SYS FAILED IN FLIGHT. TROUBLE SHOT & FOUND THE TCAS PROCESSOR DEFECTIVE. REPLACED THE PROCESSOR WITH A MODIFIED CONDITION UNIT. FUNCTIONAL TEST SATISFACTORY.

ATA 3425

Part: COMPUTER — FAILED (AHRS) · airframe 2,929 hrs · 2,339 cycles

CREW REPORTS THAT IN FLIGHT AT FL270 AN ATT & HDG FAIL INDICATION WAS DISPLAYED ON THE PILOTS PFD. FMS HAS AHRS NR 1 INPUT FAIL, AHRS HDG FAIL DISPLAYED AS MSG. REPLACED THE NR 1 AHRS COMPUTER & INSTALLED A REPAIRED UNIT.

ATA 3425

Part: AHRS — DEFECTIVE (NR 1) · airframe 2,929 hrs · 2,339 cycles

CREW REPORTED THAT IN FLIGHT AT FL270 THEY RECEIVED A ATT & HDG FAIL ON PILOTS PDF & FMS HAD AHRS 1 INPUT FAIL, AHRS HDG FAIL MASSAGES. TROUBLESHOOTING FOUND THE NR 1 AHRS DEFECTIVE, THE DEFECTIVE UNIT PN 142185-1100 SN 1135 WAS REMOVED & A REPAIRED UNIT WAS INSTALLED.

ATA 2910

Part: HYDRAULIC LINE — FAILED (HYDRAULIC SYS) · airframe 2,905 hrs · 2,322 cycles

AFTER ARRIVING AT THEIR DESTINATION & DURING THEIR POST FLIGHT INSPECTION THEY NOTED FLUID LEAKING FROM AN AFT FUSELAGE DRAIN & DETERMINED THAT IT WAS HYD FLUID. HYD RETURN LINE LOCATED IN THE HYD FILTER PANEL AREA FAILED CAUSING THE LEAK. THE FAILED HYD RETURN LINE PN 6617052-29 WAS REMOVED & A NEW RETURN LINE WAS INSTALLED. THE BELLY WAS WASHED OUT & FUNCTIONS WERE COMPLETED. THE ACFT WAS RETURNED TO SERVICE.

ATA 3230

Part: UPLOCK — STIFF (LT MLG) · airframe 2,889 hrs · 2,310 cycles

AFTER DEPARTURE & THE GEAR WAS RETRACTED THE RED GEAR UNSAFE LIGHT REMAINED ILLUMINATED, INDICATING THAT ONE OR MORE OF THE LG WERE NOT IN THE UP POSITION. THE LG WAS CYCLED SEVERAL TIMES & EACH TIME FAILED TO RETRACT PROPERLY. THE GEAR WAS EXTENDED & SINCE THE ACFT WAS ABOVE THE MAX LANDING WEIGHT THEY WERE REQUIRED TO BURN OFF FUEL BEFORE LANDING. EXTENSIVE TROUBLESHOOTING WAS UNABLE TO DETERMINE THE CAUSE OF THE LG FAULT. FUNCTIONAL CHECKS ON JACKS COULD NOT DUPLICATE THE DISCREPANCY. A CHECK FLIGHT WAS REQUESTED & THE SAME FAULT WAS REPORTED AFTER THE FLIGHT. FURTHER TROUBLESHOOTING ONLY FOUND THE LT MLG UNLOCK STIFF. ALL THE GEAR UP LOCKS WERE CLEANED & LUBRICATED. THE SECOND CHECK FLIGHT WAS SATISFACTORY.

ATA 7261

Part: CARBON SEAL — DEFECTIVE (NR 1 ENGINE) · airframe 2,864 hrs · 2,298 cycles

DURING THE POST FLIGHT CHECKLIST ON DEC 10TH IT WAS DISCOVERED THAT THE OIL LEVEL FOR THE NR 1 ENG WAS BELOW THE INSPECTION SIGHT GLASS WITH OIL STREAKING PRESENT IN THE BYPASS DUCT. THE TROUBLESHOOTING FOR THE DEC 10TH OIL LEAK EVENT FOUND THAT THE OIL LEAK WAS A RESULT OF THE FAULT WITH THE NR 4 BEARING CARBON SEAL. SEVERAL DEFECTS WERE NOTED IN THE PLASMA COATING SEALING SURFACE OF THE CARBON SEAL RUNNER.

ATA 3160

Part: DISPLAY — INOPERATIVE (COCKPIT) · airframe 2,808 hrs · 2,262 cycles

THE CREW REPORTED THAT THE MULTI-FUNCTION DISPLAY WAS INOPERATIVE. THE MFD WAS REMOVED PN 7014300-901 SN 96031332 & A REPAIRED UNIT WAS INSTALLED. FUNCTIONAL CHECKS WERE SATISFACTORY IAW CITATION 560XL AMM 34-26-00.

ATA 5270

Part: SWITCH — FAULTY · airframe 2,726 hrs · 2,192 cycles

FLIGHT CREW REPORTED THAT THE "ACC DOOR UNLOCK", TAIL ANNUNCIATOR LIGHT ILLUMINATED. MX TROUBLESHOOTING IDENTIFIED THE AFT BAGGAGE DOOR AFT SWITCH WAS DEFECTIVE PN A4-1130. INSTALLED A NEW SWITCH. REF: WDM 33-20-01. FUNCTIONAL CHECKS SATISFACTORY.