# Service difficulty reports: N928WK A list on [N928WK](https://openairdocs.org/aircraft/N928WK.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR 9JLA2021020423270](https://openairdocs.org/sdr/9JLA2021020423270.md): Probe · defective · Jan 13, 2021 · N928WK · Amd FALCON2000EX · Fuel Indicating System > THE FLIGHT CREW REPORTED THAT DURING FLIGHT A CAS MESSAGE WAS DISPLAYED INDICATING "FAULT CODE" AND "DEGRADED GAUGING". THE MAINTENANCE TEAM TROUBLESHOT AND DETERMINED THAT THE LEFT OTBD WING TANK GAUGE (L40QJ) WAS DEFECTIVE AND WAS REPLACED WITH NEW. FUNCTION - [SDR 9JLA2021011823270](https://openairdocs.org/sdr/9JLA2021011823270.md): Probe · defective · Jan 13, 2021 · N928WK · Amd FALCON2000EX · Fuel Quantity Sensor > THE FLIGHT CREW REPORTED THAT DURING FLIGHT RECEIVING A CAS MESSAGES "FAULT CODE" AND "DEGRADED GAUGING" WERE DISPLAYED. THE MAINTENANCE TEAM TROUBLESHOT AND VERIFIED THE DISCREPANCY. THE LEFT OUTBOARD WING TANK GAUGE (L40QJ) WAS REMOVED AND REPLACED WITH A - [SDR 9JLA2018040405187](https://openairdocs.org/sdr/9JLA2018040405187.md): Module · faulty · Mar 26, 2018 · N928WK · Amd FALCON2000EX · Communications System > SHORTLY AFTER TAKEOFF, THE CREW RECEIVED AN AMBER CAS MESSAGE INDICATING THAT THE RADIO CABINET NR 1 HAD FAILED. BECAUSE OF THE NATURE OF THE FAULT, THE CREW ELECTED TO DIVERT THE FLIGHT FOR EVALUATIONS AND REPAIRS. MAINTENANCE TROUBLESHOT THE FAULT AND D - [SDR 9JLA2015061114804](https://openairdocs.org/sdr/9JLA2015061114804.md): Uplock Actuator · defective · Jun 18, 2015 · N928WK · Amd FALCON2000EX · Landing Gear Actuator > THERE HAVE BEEN SEVERAL REPORTS FROM THE FLIGHT CREW ABOUT A FALSE INTERMITTENT WARNING WITH THE GEAR HANDLE FLASHING RED NORMALLY 45 MIN INTO FLIGHT. THE GEAR HANDLE LIGHT ALWAYS CLEARED DURING THE APPROACH TO LANDING. EACH REPORT WAS MET WITH TROUBLESHOOTIN - [SDR 9JLA2014091005152](https://openairdocs.org/sdr/9JLA2014091005152.md): Transfer Pump · failed · Aug 19, 2014 · N928WK · Amd FALCON50MYST · Fuel Boost Pump > DURING POST FLIGHT CHECKS IT WAS FOUND THAT THE LT WING TRANSFER PUMP ANNUNCIATOR WAS ILLUMINATED. TROUBLESHOOTING CONFIRMED THAT THE LT WING TRANSFER PUMP PN 206311-50 SN B81947 HAD FAILED & WAS REMOVED FROM SERVICE & REPLACED WITH AN OVERHAULED UNIT. OPERA - [SDR 9JLA2014043004738](https://openairdocs.org/sdr/9JLA2014043004738.md): Warning System · false activation · Apr 12, 2014 · N928WK · Amd FALCON50MYST · Engine Oil Indicating System > THE CREW REPORTED THAT DURING TAXI OUT FOR FLIGHT THAT A NR 3 EIED FAULT WAS NOTED. THE NR 3 ENG OIL FILTER WAS REMOVED & INSPECTED, NO DEFECTS WERE NOTED. PERFORMED AN ENG OIL SAMPLE IAW TFE731 LMM. PERFORMED GND & LEAK CHECKS, LEAK CHECKED OK & OIL SAMPLE - [SDR 9JLA2014012404728](https://openairdocs.org/sdr/9JLA2014012404728.md): Fuel Control · leaking · Jan 6, 2014 · N928WK · Amd FALCON50MYST · Fuel Control/Turbine Engines > DURING THE POST FLIGHT INSPECTION IT WAS DISCOVERED THAT FUEL WAS LEAKING FROM THE NR 2 ENG FUEL CONTROL P3 DRAIN. THE FUEL CONTROL WAS REPLACED WITH AN OVERHAULED UNIT. FUNCTIONAL & LEAK CHECKS WERE SATISFACTORY. - [SDR 9JLA2014012404727](https://openairdocs.org/sdr/9JLA2014012404727.md): Pressure Switch · leaking · Jan 3, 2014 · N928WK · Amd FALCON50MYST · Hydraulic System, Main > DURING THE POST FLIGHT INSPECTION IT WAS NOTED THAT THE NR 1 SYS, PUMP NR 2 PRESS SWITCH, 11D2 WAS LEAKING. THE PRESS SWITCH WAS REMOVED & THE NEW STYLE SWITCH WAS INSTALLED. FUNCTIONAL & LEAK CHECKS WERE SATISFACTORY IAW MM 29-11-25-900-801-02. - [SDR 9JLA201211072250](https://openairdocs.org/sdr/9JLA201211072250.md): Switch · defective · Nov 1, 2012 · N928WK · Amd FALCON50MYST · Fuel Indicating System > THE CREW REPORTED THAT THE NR 2 FEEDER TANK WOULD NOT FUEL TO THE HIGH LEVEL. TROUBLESHOOTING IDENTIFIED THE HIGH LOW SWITCH (63Q) ON THE FUEL PANEL SWITCH AS DEFECTIVE. REPLACED THE SWITCH WITH NEW. FUNCTIONAL CHECKS SATISFACTORY. REF: MM 28-50-60-650-901. - [SDR 9JLA201210162243](https://openairdocs.org/sdr/9JLA201210162243.md): Computer · defective · Sep 12, 2012 · N928WK · Amd FALCON50MYST · Air Collision Avoidance System > CREW REPORTED THE TCAS SYSTEM INTERMITTENTLY DISPLAYS TCAS FAIL, TD FAIL, TCAS OFF. TROUBLESHOT AND FOUND THE TTR-920 TCAS COMPUTER DEFECTIVE. REMOVED COMPUTER AND INSTALLED AN O/H UNIT PN 622-8971-122. FUNCTIONAL CHECKS SATISFACTORY. - [SDR 9JLA201210162242](https://openairdocs.org/sdr/9JLA201210162242.md): Exciter · defective · Aug 3, 2012 · N928WK · Amd FALCON50MYST · Exciter > CREW REPORTED THE NR 3 ENGINE HAD ROTATION DURING START BUT WOULD NOT IGNITE. TROUBLESHOOTING IDENTIFIED THE IGNITER EXCITER AS DEFECTIVE. INSTALLED AN O/H EXCITER, FUNCTIONAL CHECKS SATISFACTORY. - [SDR 9JLA201207172237](https://openairdocs.org/sdr/9JLA201207172237.md): Pitot Head · obstructed · May 21, 2012 · N928WK · Amd FALCON50MYST · Pitot/Static System > THE CREW REPORTED THAT ON TAKEOFF ROLL, THE COPILOTS AIRSPEED NEVER CAME ALIVE (INDICATED). GAINED ACCESS TO THE NR 2 PITOT AND FOUND DIRT AND DEBRIS CONSISTANT WITH THE MUD DOBBER WASP NEST. TUBE WAS CLEANED AND SYS CHECKS WERE SATISFACTORY. THE CREW WAS AD - [SDR 9JLA201207172236](https://openairdocs.org/sdr/9JLA201207172236.md): Adc · faulty · May 18, 2012 · N928WK · Amd FALCON50MYST · Air Data Computer > THE CREW REPORTED THAT NR 2 IAS INOPERATIVE WITH "Q" ANNUNCIATOR ILLUMINATED, GEAR WARING AND AUTO SLAT ANNUNCIATOR ILLUMINATED AND POWER LEVER ANGLES REDUCED. CREW REPORTS, Q LIGHT 180 KNOTS AND AUTO-SLAT LIGHT ABOVE 280 KNOTS. TROUBLESHOOTING IDENTIFIED THE - [SDR 9JLA201204162233](https://openairdocs.org/sdr/9JLA201204162233.md): Transducer · defective · Apr 16, 2012 · N928WK · Amd FALCON50MYST · Landing Gear Brake System > CREW REPORTED THAT DURING TAXI SPEEDS THE WHEEL BRAKES WILL INTERMITTENTLY NOT APPLY WHEN SELECTED. FOUND THE NR 2 WHEEL ANTI-SKID TRANSDUCER TO HAVE AN ABOVE NORMAL INTERNAL RESISTANCE. AN OVERHAULED TRANSDUCER WAS INSTALLED. FUNCTIONAL CHECKED SATISFACTO - [SDR 9JLA201201122225](https://openairdocs.org/sdr/9JLA201201122225.md): Selector · faulty · Jan 2, 2012 · N928WK · Amd FALCON50MYST · Cabin Pressure Controller > THE CREW REPORTED THAT ON DESCENT THE CABIN RATE INDICATOR WOULD GO OUT OF THE GREEN BAND. TROUBLESHOT THE PRESSURIZATION SYS WITH TECH SUPPORT. SUSPECT FAULTY PRESSURIZATION SELECTOR. REMOVED DEFECTIVE SELECTOR AND INSTALLED INSPECTED UNIT. OFF PN 22201N0710 - [SDR 9JLA2011122800001](https://openairdocs.org/sdr/9JLA2011122800001.md): Structure · cracked · Dec 16, 2011 · N928WK · Amd FALCON50MYST · Engine Cowling System > DURING THE POST FLIGHT INSPECTION WALK AROUND IT WAS NOTED THAT THE NR 2 ENGINE GREEN SHEET ON THE LT SIDE WAS FOUND CRACKED AND TORN LOOSE FROM ITS ATTACHMENT. THE DAMAGED GREEN SHEET WAS FOUND VIEWED FROM THE EXHAUST END OF ENGINE. THE ATTACHMENT POINTS FO - [SDR 9JLA20110801002](https://openairdocs.org/sdr/9JLA20110801002.md): Unknown · malfunctioned · Aug 1, 2011 · N928WK · Amd FALCON50MYST · Rudder Control System > CREW REPORTED THAT THE "RUDDER WAS STIFF AFTER COLD SOAK" TROUBLSHOOTING REALLY COULDN'T DUPLICATE DISCREPANCY, BUT THE RUDDER AFU WAS LUBED DURING A RECENT C CHECK. REMOVED THE RUDDER AFU P/N 105043-07 S/N 1156. INSTALLED A REPAIRED AFU S/N 1138. CREW REPO ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE n_number = 'N928WK' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N928WK/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.