N668QS
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| NETJETS AVIATION, INC. (DXTA) | Certificate holder | — | Matched by certificate designator |
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
DURING INITIAL TAXI OUT, PARK BRAKE LOW PRESS AMBER CAS ILLUMINATED. PARKING BRAKE WAS DISENGAGED PER THIS PHASE OF FLIGHT. STOPPED AIRCRAFT AND CYCLED THE PARK BRAKE, MESSAGE REAPPEARED. REPLACED BRAKE SWITCH. OPS CHECK GOOD. IAW AMM 32-44-15
LEFT MLG MLG HYDRAULIC LINE: LEFT MAIN GEAR HAS FULID LEAKING FROM MAIN BRAKE LINE. ALSO ON POST FLIGHT WHEEL ASSEMBLY WAS SMOKING. REMOVED AND REPLACED THE #2 MLG BRAKE ASSEMBLY IA W CESSNA CE-680A AMM 32-42-05. LEAK CHECK AND OPS CHECK GOOD
NLG LANDING GEAR RETRACTION: I HAD TO SELECT A GEAR FOR THIS AOG, BUT I REALLY HAVE NO IDEA WHICH ONE IT IS. UPON RETRACTION, WE HEARD AN ABNORMAL SOUND ("THUNK"?) AND THEN RECEIVED A WOW MISCOMPARE CAS MESSAGE. AFTER RUNNING THE CHECKLIST FOR THAT ITEM, THE CAS MESSAGE EXTINGUISHED. -ALL OTHER INDICATIONS AND OPERATIONS WERE NORMAL. WE DIVERTED TO TEB. UPON GEAR EXTENSION WE AGAIN RECEIVED THE WOW MISCOMPARE CAS MESSAGE, AND AGAIN, ALL OTHER SYSTEM OPERATIONS AND INDICATIONS WERE COMPLETELY NORMAL. ARES DOWNLOAD COMPLETED. RECEIVED EMAIL FROM NATHAN @MCC WITH THE AERES DOWNLOAD RESULTS IT POINTED AT THE NOSE GEAR SQUAT SWITCH AND WIRING TO THE PCB NC106, REPOSITIONED AC TO HANGAR 1 JACKED UP AC WITH POWER ON INTERROGATED MX COMPUTER UNDER LIVE VIEW FOUND NOSE SQUAT SWITCH SHOWING ON GROUND WHILE BEING IN AIR AT NF206 AND NC106, LOWER AC DISCONNECTED CONNECTOR PG028 AND OHMED OUT NOSE SQUAT SG014 IN AIR MODE AND ON GROUND AND IT CHECKED GOOD, RAISE NOSE GEAR AGAIN AND THIS TIME IT SHOWED IN AIR WHILE IN AIR, LOWER AC CONTACTED NATHAN @ MCC INFORMED HIM WITH FINDINGS HE REQUESTED TO REPLACE THE NOSE GEAR SQUAT SWITCH WORK ACCOMPLISHED IAW 680A MM32-60·01, REMOVED THE DAMAGED NLG SQUAT SWITCH AND INSTALLED A NEW NLG SQUAT SWITCH IAW CE·680A AMM 32·60-10. RIGGED THE NLG SQUAT SWITCH AND PERFORMED A SUCCESSFUL OPERATIONAL CHECK OF THE NLG SQUAT SWITCH AND EXTENSION AND RETRACTION TEST OF THE NLG. SAFETIED THE JAM NUTS AND THE TAXI LIGHTS, RETURNED THE AIRCRAFT BACK TO ITS ORIGINAL CONFIGURATION. REFERENCED THE CE·680A AMM 32·00·00 AND 32-61-10.
MLG: AFTER TAKEOFF RIGHT MAIN LANDING GEAR FAILED TO RETRACT. RECEIVED A GEAR DISAGREE R AMBER CAS MESSAGE. PERFORMED ARES DOWNLOAD & SENT TO MANUFACTURER FOR REVIEW. JACKED ACFT REF MM 07-10-10. PERFORMED MAIN MLG UPLOCK SWITCH ADJUSTMENT PROCEDURE IAW MM 32-32-00 AND NOTED THAT BOTH THE LT AND RT MLG UPLOCK SWITCHES ARE RIGGED CORRECTLY. DURING MANUF REVIEW OF ARES DATA, IT WAS NOTED THAT STARTING WITH OLDEST ON THE 15TH THE RT UPLOCK SWITCH, UPLOCK LEG FEEDING THE GEA TOOK 17 SECONDS TO CHANGE STATE TO NOT UP AND LOCKED AFTER LANDING GEAR HANDLE WAS PUT DOWN. THE SECOND PLOT IS OF THE GEAR DOWN FERRY FLIGHT TO MKE SHOWING RT UPLOCK SWITCH LEG GOING TO GEA GOES BANANAS. THE THIRD PLOT IS FROM THE LATEST SQUAWK SHOWING THE SAME LEG OF RT UPLOCK SWITCH SWITCH WAS STEADY STATE, NOT UP AND LOCKED, BUT THE TWO LEGS GOING TO THE PCBS CHANGED AS THEY SHOULD. ACCESSED RT MLG UP LOCK SWITCH, DOWNLOCK SWITCH & CONNECTORS & VISUALLY INSPECTED CONNECTOR & CONNECTOR PINS AND SOCKETS WITH NO DISCREPANCIES. ACCESSED GEA 3 AND CONNECTOR PT408 ABOVE BAGGAGE AS REQUIRED . VISUALLY INSPECTED GEA 3 AND PT408 CONNECTOR, PINS, AND SOCKETS WITH NO DISCREPANCIES. ACCESSED PT008 FORWARD OF THE BAGGAGE COMPARTMENT AS REQUIRED. VISUALLY INSPECTED PT008 CONNECTOR, PINS, AND SOCKETS WITH NO DISCREPANCIES. ACCESSED WIRE HARNESS RUN ABOVE RT WING. VISUALLY INSPECTED HARNESS, JG002, AND GYCB02 WITH NO DISCREPANCIES. ACCESSED PY002 BEHIND FORWARD BELLY PANEL. VISUALLY INSPECTED HARNESS, & PY002 CONNECTOR, PINS & SOCKETS WITH NO DISCREPANCIES. CONNECTED WIRELESSLY TO AIRCRAFT ARES FROM LAPTOP WITH ARES LIVE VIEW SOFTWARE AND SECURED THE RT MLG UP LOCK SWITCH IN THE DEPRESSED POSITION WHILE MANIPULATING THE HARNESS FROM THE SWITCH TO THE GEA 3 IN THE BAGGAGE COMPARTMENT, AS WELL AS ALL OTHER PREVIOUSLY ACCESS CONNECTORS, NOTING THAT THE UP AND LOCKED SIGNAL IN THE ARES LIV
NLG LANDING GEAR EXTENSION: AFTER TAKEOFF, WHEN THE LANDING GEAR HANDLE WAS SELECTED UP, A VIOLENT SHAKING AND VIBRATION OCCURED. I IMMEDIATLY SELECTED THE LANDING GEAR DOWN WHICH GAVE US A POSITIVE 3 GREEN DOWN INDICATION AND THE SHAKING AND VIBRATION STOPPED. THE AMBER WOW MISCOMPARE CAS MESSAGE DISPLAYED. AFTER RUNNING THE CHECKLIST, WE LANDED WITH NO FURTHER INCIDENT. // SIGNOFF// JACKED AIRCRAFT. COMPLIED WITH GEAR SWINGS. NOTED SHAKING OF GEAR PRESENTS ITSELF WHEN THE NOSE WHEEL STEERING IS NOT CENTERED BEFORE GEAR RETRACTION. NEED TO CORRECT THE INSTALLATION OF NOSE GEAR HARNESS BEFORE CONTINUING AS IT IS NOT INSTALLED CORRECTLY. REMOVED AND REPLACED NOSE LANDING GEAR SQUAT SWITCH AND WIRING PN 6948001-2, CUSTOMER PROVIDED. ALL WORK WAS DONE IA W CE680A MAINTENANCE MANUAL CHAPTER 32-60-10. RIGGED AND SAFETY SWITCH. NOSE LANDING GEAR SQUAT SWITCH OPS CHECK GOOD. NOSE LANDING GEAR OPS CHECK GOOD DURING CYCLE.
HEAVY GREY SMOKE FILLED THE CABIN WHILE APU OPERATING DURING PRE-FLIGHT. OPENED ACCESS & REMOVED APU PN 3800722-1 & SN P-677 FROM ACFT. PERFORMED TEAR DOWN & BUILD UP PROCEDURES FROM REMOVED TO REPAIR APU. INSTALLED REPAIRED APU, SAME PN, SN P-669 IAW CH 49-10-00 OF THE MM. OPERATIONS & LEAK CHECKED GOOD. CLOSED APU ACCESS PANEL & CONTAINMENT BOX PANELS & SEALED PANELS AS NEEDED IAW MM 49-10-00.
HEAVY GREY SMOKE FILLED THE CABIN WHILE APU OPERATING DURING PREFLIGHT. LINE SERVICE INITIALLY ALERTED ME OF SMOKE COMING OUT OF APU EXHAUST & THEN SECONDS LATER THE CABIN & COCKPIT FILLED WITH SMOKE.
DURING FLIGHT GEAR UNSAFE RED LIGHT ILLUMINATED, NO GREEN LIGHTS ILLUMINATED. COMPLIED WITH APPLICABLE CHECKLIST. TROUBLE SHOT NLG RETRACTION & EXTENSION COMPONENTS. FOUND NLG STRUT EXTENSION OUT OF LIMITS IAW CMM 32-20-01. DISASSEMBLED NLG LOWER STRUT ASSEMBLY, INSTALLED NEW O RINGS, SEALS & SCRAPER RING & REASSEMBLED. INSTALLED NLG LOWER STRUT ASSEMBLY & SERVICED WITH HYD FLUID & NITROGEN IAW MM 12-14-00. VERIFIED STRUT EXTENSION IS LESS THAN 9.10 INCHES CMM 32-20-01. GEAR RETRACTION & EXTENSION CHECKS FOUND SATISFACTORY.
ON TAKEOFF & CLIMB THROUGH 1000 FEET, THERE WAS A PRESS BUMP, FOLLOWED BY WIND NOISE & THE DOOR SEAL & CABIN DOOR ANNUNCIATORS COMING ON. WE DID NOT CLIMB ABOVE 1500 FEET. ON DESCENT FOR LANDING, THE DOOR OPENED FULLY & IT MADE CONTACT WITH THE RUNWAY DURING LANDING. DAMAGE NOTED POST FLIGHT. REMOVED CABIN DOOR FOR REPAIR. REPLACED INNER DOUBLERS & SKIN IAW SRM 51-40-03. REINSTALLED CABIN DOOR IAW MM 57-10-00. OPERATIONAL CHECKS GOOD. PRESSURIZATION CHECKS GOOD. PARTS REPLACED DOUBLER PN 6611267-75, NSN, DOUBLER PN 6611267-76, NSN, SKIN PN 6611351-10, NSN, SPACER PN 6611351-8, NSN, FRAME PN 6611354-7, NSN & FRAME PN 6611354-8, NSN.
AFTER APU WAS STARTED & GEN SWITCH WAS ON, WE TURNED THE BLEED AIR ON. ALMOST IMMEDIATELY SMOKE STARTED FILLING THE COCKPIT. THE SMOKE DID NOT APPEAR TO BE COMING FROM WEMACS. IT SMELLED LIKE DIRTY SOCKS, APU WAS SHUTDOWN & SMOKE EVENTUALLY DISSIPATED. NO EVIDENCE OF FIRE EXISTED IN HELL HOLE. BEFORE THE APU WAS STARTED IT TESTED NORMAL. R&R AUXILIARY POWER UNIT (APU) IAW CE-560XL MM 49-10-00 REV 35. REMOVED AND REPLACED NEW DUCTING SEALS FOR THE BLEED AIR. SERVICED APU. OPS/LEAK CHECK GOOD.
SWEET ODOR OF SMOKE IN CABIN ON GROUND, WITH APU SUPPLYING BLEED AIR FOR ACM. APU FAILED A PORTION OF INITIAL PREFLIGHT CHECK, WITH "READY TO LOAD LIGHT" FAILING TO ILLUMINATE UNTIL APU MASTER HAD BEEN CYCLED PRIOR TO SUCCESSFUL FULL TEST. FOUND APU OIL LEVEL TO BE EXCESSIVE. REMOVED OIL AND SERVICED APU IAW MM 49-10-00. CLEANED WATER SEPARATOR IAW MM 12-19-02-160. PERFORMED OPS CHECK OF APU, OPS CHECKED GOOD IAW MM 49-10-00. NO DEFECTS NOTED.
AFTER TAKEOFF, WITH THE LANDING GEAR HANDLE SELECTED UP, THE NOSE GEAR INDICATOR REMAINED ILLUMINATED (THE RED UNLOCK LIGHT WAS NOT ILLUMINATED). R & R NLG ACTUATOR DOWNLOCK SWITCH IAW MM 32-30-00. PERFORMED ACTUATOR LASH CHECK AND ACTUATOR LOCK/UNLOCK PRESSURE CHECK IAW MM 32-30-03. OPS AND LEAK CHECKED GOOD.
CLIMBING THROUGH 10,000 FT & ACCELERATING PAST 200, A NOTICABLE VIBRATION FELT IN YOLK, MOST NOTICABLE AFTER AILERON TRIM WAS PUT INTO LEVEL WITH WINGS. AFTER LEVEL OFF AT FL230 IAW INSTRUCTIONS, RETARDED EACH THOTTLE ONE AT A TIME & NO CHANGE IN VIBRATION. DURING DESCENT VIBRATIONS DECREASED WHEN BELOW 210 KNOTS. NO VIBRATIONS FELT THROUGH RUDDER PEDALS. FOUND RUDDER TRIM TAB BEARINGS WORN. REMOVED BEARINGS AND CLEANED MATING SURFACES. INSTALLED NEW BEARINGS. IAW MM SEC 20-10-08 REV 30.
UPON LANDING, NOTICED THAT THE LT BRAKE PEDAL REQUIRED VERY LITTLE MOVEMENT BEFORE IT WOULD GRAB, THE RT BREAK PEDAL REQUIRED A NORMAL AMOUNT OF MOVEMENT. THIS WAS ON BOTH LT AND RT SIDES AND BOTH HIGH SPEED AND LOW SPEED. TAXIED ACFT AND CONFIRMED SQ LT BRAKE ARE SENSITIVE TO PRESSURE THAN RT SIDE CAUSING QUICK PULL TO LT. NO EVIDENCE OF A DRAGGING BRAKE. COMPLIED WITH BRAKE BLEEDING AND ANTI-SKID FUNCTIONAL TEST. REF MM 32-42-00, REV 30. NO DISCREPANCIES NOTED. BLEED PART LEAK CHECKED GOOD. TAXI CHECKED GOOD.
WHEN THE GEAR IS SELECTED UP AND IT'S UP AND STOWED, A LOUD CLUNK OCCURS FROM THE NOSE AREA. FOUND NOSE GEAR UPLOCK AFT JAM NUT LOOSE AND NOT MAKING ADEQUATE CONTACT WITH UPLOCK ROLLER. RIGGED AND SAFETIED NOSE GEAR UPLOCK SWITCH IAW MM 32-61-00. COMPLIED WITH GEAR SWINGS AND PERTAINING PORTIONS OF GEAR FUNCTIONAL CHECK IAW MM 32-01-00. OPERATIONAL CHECKS GOOD.
RT BRAKE EXCESSIVELY GRABS AND WHEN INSPECTED IS EXTREMELY HOT. PERFORMED TAXI CHECK. FOUND EVEN APPLICATION WHEN BRAKING. BRAKES USUALLY EXTREMELY HOT AFTER LANDING AND TAXING. BOTH BRAKES VERY WARM. FOUND RT BRAKE WEAR INDICATOR AT .15" WHICH GIVES OUT TO 118 LANDINGS LEFT IN BRAKE. BRAKE IS IN SERVICABLE CONDITION AT THIS TIME IAW CITATION 560XL MM 32-400-3.
DURING A PHASE 1-4 INSPECTION, OPERATOR REQUESTED WE INSPECT THE AFT ELEVATOR TRIM CABLES. UPON INSPECTION WE FOUND BROKEN WIRES. TOOK CABLE TENSIONS, FOUND TO BE WITHIN LIMITS AND CABLE WAS CENTERED ON THE PULLEYS. THE CABLE WAS REMOVED AND LOOP TEST SHOWED MORE BROKEN WIRES. AN SCR HAS BEEN SUBMITTED TO MFG UNDER NR 250293.
PLANE ROCKS VIOLENTLY WHEN TRYING TO STEER, NOSE WHEEL STEERING DOES NOT RESPOND. FOUND STEERING GEAR BOLTS SHEARED. REMOVED AND REPLACED NOSE STEERING SHEET BOLTS IAW CESSNA 560XL LMM 32-20-01 AND 560XL M/M 32-50-00.
HYDRAULIC PRESS & UNLOCK LIGHT REMAIN ILLUMINATED ON GEAR RETRACTION. RECYCLED HYD CONTROL PER CK LIST. RECYCLED GEAR & PROBLEM REPEATED ITSELF (SUSPECT NOSE GEAR). - REMOVED AND REPLACED NOSE GEAR UPLOCK SWITCH WITH NEW IAW THE CESSNA 560XL M/M CHAPTER 32-30-05, OPERATIONAL CHECK NORMAL.
LANDING GEAR WOULD NOT UPLOCK, UNLOCK LIGHT REMAINED ILLUMINATED FOLLOWED BY HYD PRESS LIGHT. FOUND HYD RESERVOIR LOW. SERVICED RESERVOIR TO FULL. PERFORMED LANDING GEAR FUNCTIONAL CHECK 10 TIMES. ALL OPERATIONS WERE NORMAL. NO FURTHER DEFECTS NOTED. ALL WORK PERFORMED IAW CE 560XL AMM 7-10-00/12-12-00/32-30-00.
AFTER TAKEOFF THE GEAR WAS RETRACTED, THE THREE GREEN INDICATORS WENT OUT BUT THE RED LIGHT REMAINED ON, FLAPS AND STAB WERE NOT COMMANDED TO MOVE. RED LIGHT REMAINED ON AND THE HYDRAULIC PRESSURE LIGHT FLASHED, CYCLED GEAR SECOND TIME WITH SAME RESULTS. ITEM IS UNDER INVESTIGATION.
PERFORMED AILERON WING CABLE INSPECTION PER CESSNA ASL560XL-27-12, FOUND CABLES CHAFED/BROKEN BEYOND MANUFACTURER'S LIMITS. REMOVED AND REPLACED LT AND RT WING AILERON CABLES IAW CESSNA 560XL MM CHAPTER 27-10-03.
"GEAR UNLOCK" LIGHT REMAINED ILLUMINATED AFTER GEAR HANDLE PLACED IN THE UP POSITION. PERFORMED LANDING GEAR FUNCTIONAL TEST, CHECKED GOOD. CHECKED RIGGING ALL UP LOCK SWITCHES AND HOOKS, FOUND THE NOSE LANDING GEAR UPLOCK TO BE OUT OF RIG, ADJUSTED UPLOCK HOOK AND RIGGED SWITCH. PERFORMED GEAR FUNCTIONAL CHECK, CHECKED GOOD, PERFORMED EMERGENCY GEAR FREE FALL ALSO CHECKED GOOD IAW 560XL MM CHAPTER 32-30-05.