# N437JS: 2022 Sowalsky John W EXCALIBUR - Status: Registration pending - Airframe: [Sowalsky John W EXCALIBUR](https://openairdocs.org/model/sowalsky-john-w-excalibur) (registry code 05639VO, 2 seats) - Engine: [Aeromoment AM13 series](https://openairdocs.org/engine/aeromoment-am13-series) (registry code 00450) - Serial number: 52819 - Year built: 2022 - Type: Fixed wing single engine - Engine type: Reciprocating - Kit: Excalibur Aircraft EXCALIBUR - Airworthiness: Experimental, amateur built - Airworthiness date: June 13, 2022 - Mode S code: A53DF8 - Location: [Dorrance, KS](https://openairdocs.org/faa-place/KS/Dorrance) - Owner type: Individual - Owner's area on the map: 38.8233° N, 98.6044° W: Placed by OpenAirDocs at the center of ZIP code 67634, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=437JS - Page: https://openairdocs.org/aircraft/N437JS From the FAA registry file of October 20, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Aeromoment AM13 model are included. ## ADs that may apply (OpenAirDocs): 0 in force ### Matched by airframe (Sowalsky John W EXCALIBUR) None in force. ### Matched by engine (Aeromoment AM13 series) None in force. ## Information bulletins (advisory) None matched. ## NTSB investigations None matched to N437JS. ## FAA accident and incident reports None matched to N437JS. ## Reports on N437JS not matched to an aircraft (4) They name N437JS, but no registry record covers the event date, or the aircraft registered then was built later. - [Incident 20040402004149I](https://openairdocs.org/incident/20040402004149I), Apr 2, 2004: Dorner DO328100 (N437JS), Pittsburgh, PA. (-23) On April 2, 2004, at 1120 eastern standard time, a dornier 328-100, N437JS, operated by psa airlines (vnaa), as us airways express flight number 2558,… - [Incident 19991130036679I](https://openairdocs.org/incident/19991130036679I), Nov 30, 1999: Dorner DO328100 (N437JS), Pittsburgh, PA, Minor damage. (-23) Flight 4022 departed runway 28 left at Pittsburgh international airport (pit). At about 400 ft. AGL, the aircraft sustained a bird strike in the right… - [Incident 19970204012419I](https://openairdocs.org/incident/19970204012419I), Feb 4, 1997: Dorner DO328100 (N437JS), Evansville, IN. Narrative: automatic pressurization failed at 17,000 feet at 04122OZ, ATC allowed aircraft to continue at 7,000 feet. Landed at pittsburgh without further… - [Incident 19960122002259I](https://openairdocs.org/incident/19960122002259I), Jan 22, 1996: Dorner DO328100 (N437JS), Pittsburgh, PA, Minor damage. Narrative: the pilot-in-command wrote: the aircraft was located at gate E-11. After engine start, I had directed the first officer to contact ramp control for… ## Service difficulty reports (60, newest 50) As reported by operators and repair stations. - [SDR VNAA0310001](https://openairdocs.org/sdr/VNAA0310001), Oct 1, 2003: PROXIMITY SENSOR. LOOSE. EN ROUTE, THE CREW RECEIVED A BAGGAGE DOOR OPEN INDICATION AND DIVERTED TO RDU. MAINTENANCE INSPECTED AND FOUND FASTENERS LOOSE ON THE SHOOT BOLT PROXI SENSOR A - [SDR VNAA0309001](https://openairdocs.org/sdr/VNAA0309001), Sep 1, 2003: LIGHT. FAILED. THE CREW REPORTED THAT THE EMERGENCY EXIT LIGHT AT ROW 1 WAS NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY FLOOR LIGHTING STRIP IN ACCORDAN - [SDR VNAA0308021](https://openairdocs.org/sdr/VNAA0308021), Aug 28, 2003: LIGHT. INOPERATIVE. THE CREW REPORTED THAT THE LAST ROW OF EMERGENCY FLOOR LIGHTING WAS NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE FLOOR LIGHTING STRIP IN ACCORDANCE - [SDR VNAA0308013](https://openairdocs.org/sdr/VNAA0308013), Aug 20, 2003: LIGHT. INOPERATIVE. THE CREW REPORTED THAT THE AFT EMERGENCY FLOOR LIGHT STRIP WAS NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY FLOOR LIGHTING STRIP IN ACCORD - [SDR VNAA0305019](https://openairdocs.org/sdr/VNAA0305019), May 29, 2003: HMU. FAILED. DURING TAKEOFF, THE LEFT HAND ENGINE WAS ONLY PRODUCING 90 PERCENT TORQUE AND THE CREW ABORTED TAKEOFF. THE AIRCRAFT WAS FERRIED TO DAY. MAINTENANCE INSPECTED A - [SDR VNAA0305016](https://openairdocs.org/sdr/VNAA0305016), May 22, 2003: SIGNAL COND UNIT. FAILED. DURING TAKEOFF, THE LT HAND ENGINE WAS ONLY PRODUCING 85 PERCENT TORQUE AND THE CREW ABORTED TAKEOFF. THE AIRCRAFT WAS THEN FERRIED TO DAY. MAINTENANCE INSPECTE - [SDR VNAA0302008](https://openairdocs.org/sdr/VNAA0302008), Feb 11, 2003: LIGHT. FAILED. THE CREW REPORTED THAT THE EMERGENCY TRACK LIGHTING AT SEAT 1 D AND F WAS NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE TRACK LIGHTING STRIP IN ACCOR - [SDR VNAA0302003](https://openairdocs.org/sdr/VNAA0302003), Feb 5, 2003: BATTERY. FAILED. THE CREW REPORTED THAT THE FIRST ROW OF EMERGENCY LIGHTING WAS NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE 4LK EMERGENCY BATTERY IN ACCORDANCE WITH - [SDR VNAA0212009](https://openairdocs.org/sdr/VNAA0212009), Nov 22, 2002: CONTROL UNIT. FAILED. THE CREW REPORTED THAT THE PRESSURIZATION FAILED AND RECEIVED AN AUTO MODE CABIN ALTITUDE CAS MESSAGE. MAINTENANCE INSPECTED AND REPLACED THE CPCS CONTROL UNIT - [SDR VNAA0210019](https://openairdocs.org/sdr/VNAA0210019), Oct 17, 2002: EJECTOR VALVE. FAILED. THE CREW RECEIVED AN AIRFOIL DE-ICE FAIL CAS MESSAGE AND RETURNED TO PIT. MAINTENANCE INSPECTED AND REPLACED THE EJECTOR FLOW CONTROL VALVE IN ACCORDANCE WITH D - [SDR VNAA0209032](https://openairdocs.org/sdr/VNAA0209032), Sep 23, 2002: BATTERY. DISCHARGED. THE CREW REPORTED THAT THE LAST ROW OF EMERGENCY FLOOR LIGHTING WAS NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE 7LK EMERGENCY BATTERY IN ACCORDANCE - [SDR VNAA0208023](https://openairdocs.org/sdr/VNAA0208023), Aug 15, 2002: STRUCTURE. VIBRATION. DURING CLIMBOUT, THE CREW REPORTED A VIBRATION AND RETURNED TO PIT. MAINTENANCE INSPECTED AND PERFORMED A FUNCTIONAL CHECK FLIGHT WITH THE CREW AND COULD NOT DU - [SDR VNAA0208012](https://openairdocs.org/sdr/VNAA0208012), Aug 9, 2002: CONTROL UNIT. FAULTY. DURING THE CLIMBOUT, THE CREW RECEIVED MULTIPLE ERRATIC BRAKE TEMPERATURE INDICATIONS AND RETURNED TO PIT. MAINTENANCE INSPECTED AND REPLACED THE ANTI SKID CONT - [SDR VNAA0207030](https://openairdocs.org/sdr/VNAA0207030), Jul 22, 2002: LIGHT. INOPERATIVE. THE CREW REPORTED THAT THE EMERGENCY FLOOR TRACK LIGHT AT SEAT 9A WAS NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY LIGHT STRIP IN ACCORDAN - [SDR VNAA0203040](https://openairdocs.org/sdr/VNAA0203040), Mar 25, 2002: BATTERY. FAILED. ENROUTE FROM DCA TO BTV, THE NUMBER TWO BATTERY OVERHEATED. THE CREW CALLED DISPATCH AND DIVERTED TO IPT. THE AIRCRAFT WAS THEN FERRIED TO PIT WHERE MAINTENANCE - [SDR VNAA0111005](https://openairdocs.org/sdr/VNAA0111005), Nov 12, 2001: BATTERY. DISCHARGED. THE CREW REPORTED THAT THE EMERGENCY LIGHTING AT ROWS 3, 4, AND 5 WERE BLINKING. MAINTENANCE INSPECTED AND REPLACED THE 5LK EMERGENCY BATTERY IN ACCORDANCE WITH - [SDR VNAA0108016](https://openairdocs.org/sdr/VNAA0108016), Aug 24, 2001: BATTERY. DISCHARGED. THE CREW REPORTED THAT THE EMERGENCY LIGHTING AT THE FLIGHT ATTENDANTS SEATING WAS NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY AT - [SDR VNAA0106009](https://openairdocs.org/sdr/VNAA0106009), Jun 11, 2001: BATTERY. DISCHARGED. THE CREW REPORTED THAT THE EMERGENCY LIGHTING IN ROWS 3 THROUGH 6 WERE NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY AT THE 5LK POS - [SDR VNAA0104015](https://openairdocs.org/sdr/VNAA0104015), Apr 21, 2001: WARNING SYSTEM. FALSE INDICATION. WHILE CLIMBING THROUGH 14,000 FEET, THE CREW RECEIVED AN EMERGENCY ACCESS DOOR INDICATION ON THE RED WARNING PANEL. THE CREW REFERENCED THE QUICK REFERENCE HAND - [SDR VNAA0102013](https://openairdocs.org/sdr/VNAA0102013), Feb 22, 2001: LEVER. BINDING. AT CRUISE ALTITUDE OF FL220 THE RIGHT CONDITION LEVER BECAME STIFF AND WOULD NOT MOVE IN EITHER DIRECTION. THE CREW RETURNED TO PIT AND MAINTENANCE REPLACED THE - [SDR VNAA0102007](https://openairdocs.org/sdr/VNAA0102007), Feb 13, 2001: SIGN. DETACHED. THE CREW REPORTED THAT THE EMERGENCY EXIT SIGN AT ROW 9A FELL DOWN. MAINTENANCE INSPECTED AND SECURED THE EMERGENCY SIGN IN ACCORDANCE WITH DORNIER MAINTENANCE - [SDR VNAA0102001](https://openairdocs.org/sdr/VNAA0102001), Feb 4, 2001: TERMINAL. BROKEN. ON CLIMBOUT, THE CREW RECEIVED A PROPELLER ICE FAIL CAS MESSAGE. FLIGHT 4042 RETURNED TO THE FIELD WHERE MAINTENANCE INSPECTED AND REPLACED A BROKEN TERMINAL EN - [SDR VNAA0007003](https://openairdocs.org/sdr/VNAA0007003), Jul 4, 2000: SWITCH. FAILED. DURING CLIMBOUT, THE CREW RECEIVED A LEFT HAND PROPELLER OIL PRESSURE CAS MESSAGE. THE CREW FOLLOWED THE QUICK REFERENCE HANDBOOK AND CONTACTED MAINTENANCE CONT - [SDR VNAA0004015](https://openairdocs.org/sdr/VNAA0004015), Apr 9, 2000: SWITCH. FAILED. AS THE AIRCRAFT APPROACHED 20-30 KNOTS THE CREW RECEIVED A DOOR SWITCH FAIL CAS MESSAGE. THE CREW ABORTED TAKEOFF AND REFERENCED THE QUICK REFERENCE HANDBOOK. T - [SDR VNAA0003030](https://openairdocs.org/sdr/VNAA0003030), Mar 30, 2000: ECU. FAILED. DURING TAKEOFF, THE CREW RECEIVED A RIGHT HAND ELECTRONIC CONTROL UNIT FAIL MESSAGE AND ABORTED TAKEOFF. THE AIRCRAFT CLEARED THE RUNWAY AND THE CREW REFERENCED - [SDR VNAA0003024](https://openairdocs.org/sdr/VNAA0003024), Mar 26, 2000: ECU. FAILED. FLIGHT 4158 WAS BEGINNING THE TAKEOFF ROLL WHEN THE FLIGHT CREW RECEIVED A RIGHT ECU FAIL MESSAGE. THE FLIGHT CREW ABORTED THE TAKEOFF AND EXITED THE RUNWAY. TH - [SDR VNAA0003017](https://openairdocs.org/sdr/VNAA0003017), Mar 17, 2000: RT PACK. FAILED. WHILE ATTEMPTING TO TAKEOFF, THE CREW RECEIVED A RIGHT PACK FAIL MESSAGE. THE CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. OUTSTATION MAINTENANCE INSPECTED TH - [SDR 20000329SH037](https://openairdocs.org/sdr/20000329SH037), Mar 3, 2000: NUT. LOOSE. DEFECT: TIE BOLT NUTS BACKED OFF. CAUSE: UNDER INVESTIGATION. PREVENTIVE ACTION: PENDING COMPLETION OF INVESTIGATION. (X) - [SDR VNAA0002005](https://openairdocs.org/sdr/VNAA0002005), Feb 3, 2000: EEC. FAILED. WHEN STARTING THE TAKEOFF ROLL, THE CREW RECEIVED A RIGHT HAND ELECTRONIC ENGINE CONTROL UNIT FAIL CAS MESSAGE. THE CREW ABORTED TAKEOFF AND EXITED THE RUNWAY. - [SDR VNAA0002002](https://openairdocs.org/sdr/VNAA0002002), Feb 2, 2000: ECU. FAILED. DURING TAKEOFF, THE CREW RECEIVED A RIGHT HAND ECU FAIL CAS MESSAGE. THE CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. THE AIRCRAFT WAS THEN FERRIED TO PIT WHE - [SDR VNAA9911025](https://openairdocs.org/sdr/VNAA9911025), Nov 30, 1999: SPINNER. BIRD STRIKE. DURING TAKEOFF, THE RIGHT HAND ENGINE SUSTAINED A BIRD STRIKE. THE AIRCRAFT ABORTED TAKEOFF AND RETURNED TO THE FIELD WITHOUT FURTHER INCIDENT. MAINTENANCE INSP - [SDR VNAA9911019](https://openairdocs.org/sdr/VNAA9911019), Nov 22, 1999: BLEED VALVE. FAILED. DURING FINAL APPROACH, THE RIGHT ELECTRONIC ENGINE CONTROL UNIT FAILED. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND CLEANED THE RIGHT INTERC - [SDR VNAA9911015](https://openairdocs.org/sdr/VNAA9911015), Nov 17, 1999: FUEL CONTROL. FAILED. DURING TAKEOFF, THE FLIGHT CREW RECEIVED A RIGHT HAND ENGINE ELECTRONIC CONTROL UNIT FAIL CAS MESSAGE AND THE CREW ABORTED TAKEOFF. THE CREW THEN FERRIED THE AI - [SDR VNAA9911014](https://openairdocs.org/sdr/VNAA9911014), Nov 17, 1999: FUEL CONTROL. FAILED. DURING TAKEOFF, THE FLIGHT CREW RECEIVED A RIGHT HAND ENGINE ELECTRONIC CONTROL UNIT FAIL CAS MESSAGE. THE CREW ABORTED TAKE OFF. THE CREW CYCLED THE ELECTRONIC - [SDR VNAA9910015](https://openairdocs.org/sdr/VNAA9910015), Oct 25, 1999: BATTERY. FAILED. EN ROUTE TO CHS, THE FLIGHT CREW RECEIVED A NUMBER 2 BATTERY OVERHEAT CAS MESSAGE. THE AIRCRAFT THEN RETURNED TO PIT. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAIN - [SDR VNAA9908001](https://openairdocs.org/sdr/VNAA9908001), Aug 8, 1999: STRUCTURE. STRIKE. DURING THE DESCENT INTO PIT, THE AIRCRAFT WAS STRUCK BY LIGHTNING. THE FLIGHT CONTINUED TO PIT AND MADE A NORMAL LANDING. MAINTENANCE INSPECTED AND REPAIRED LIG - [SDR VNAA9905011](https://openairdocs.org/sdr/VNAA9905011), May 28, 1999: BATTERY. DISCHARGED. THE EMERGENCY LIGHT 24LK WAS NOTED TO BE INOPERATIVE BY PIT MAINTENANCE, DURING A LINE CHECK ONE INSPECTION. MAINTENANCE INSPECTED AND REPLACED THE 6LK EMERGENC - [SDR VNAA9905007](https://openairdocs.org/sdr/VNAA9905007), May 23, 1999: PUMP. FAILED. A MAIN HYDRAULIC PUMP FAIL WARNING MESSAGE ILLUMINATED 30 MIN INTO THE FLIGHT. THE CREW FOLLOWED THE QRH, AND CONTINUED ON TO PIT. DURING THE APPROACH INTO PIT, - [SDR VNAA9905006](https://openairdocs.org/sdr/VNAA9905006), May 17, 1999: BATTERY. DISCHARGED. DURING THE PREFLIGHT INSPECTION, THE EMERGENCY LIGHTS TOWARDS THE REAR OF THE AIRCRAFT, FAILED TO ILLUMINATE. OUTSTATION MAINTENANCE INSPECTED THE AIRCRAFT FOR - [SDR VNAA9904005](https://openairdocs.org/sdr/VNAA9904005), Apr 19, 1999: BATTERY. DISCHARGED. DURING THE POST FLIGHT INSPECTION, THE EMERGENCY LIGHTS AT SEAT 9A WERE NOTED TO BE INOPERATIVE. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY LIGHT BATTERY - [SDR VNAA9811011](https://openairdocs.org/sdr/VNAA9811011), Nov 11, 1998: CONTROL UNIT. TRIPPED. A NOSE STEERING FAILURE WARNING OCCURRED, DURING THE TAXI PRIOR TO TAKEOFF. THE AIRCRAFT RETURNED TO THE GATE. OUTSTATION MAINTENANCE INSPECTED AND RE-SEATED TH - [SDR VNAA9809002](https://openairdocs.org/sdr/VNAA9809002), Sep 2, 1998: HANDLE. OUT OF ADJUST. DURING THE TAXI FOR TAKEOFF, A BRAKE OVERHEAT WARNING MESSAGE ILLUMINATED, FOR ALL FOUR BRAKES. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED, ADJUST - [SDR VNAA9807004](https://openairdocs.org/sdr/VNAA9807004), Jul 11, 1998: SENSOR. FAILED. THE AIRCRAFT RETURNED TO THE GATE, DUE TO AN ANGLE OF ATTACK WARNING MESSAGE. OUTSTATION MAINTENANCE INSPECTED AND APPROVED THE AIRCRAFT FOR A FERRY FLIGHT TO P - [SDR VNAA9806016](https://openairdocs.org/sdr/VNAA9806016), Jun 28, 1998: SENSOR. FAILED. THE LEFT HAND ENGINE TORQUE INDICATION FAILED, DURING THE TAXI FOR TAKEOFF. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE LEFT HAND - [SDR VNAA980611](https://openairdocs.org/sdr/VNAA980611), Jun 17, 1998: SENSOR. OUT OF ADJUST. SHORTLY AFTER TAKEOFF, THE LANDING GEAR WOULD NOT RETRACT WHEN SELECTED. THE AIRCRAFT RETURNED TO THE FIELD AND LANDED. MAINTENANCE INSPECTED AND ADJUSTED, THE - [SDR VNAA9804024](https://openairdocs.org/sdr/VNAA9804024), Apr 24, 1998: TIRE. FLAT. DURING THE POST FLIGHT INSPECTION, THE RIGHT HAND OUTBOARD TIRE WAS NOTED TO BE FLAT. THE INSPECTION REVEALED A POSSIBLE OVERHEAT CONDITION HAD OCCURED. AS A PR - [SDR VNAA9711019](https://openairdocs.org/sdr/VNAA9711019), Nov 28, 1997: BATTERY. DISCHARGED. DURING PREFLIGHT INSPECTION, THE CREW NOTED THAT EMERGENCY FLOOR LIGHTING AT ROW FOUR WAS INOPERATIVE. MAINTENANCE INSPECTED AND REPLACED THE 5LK EMERGENCY BATT - [SDR VNAA9711004](https://openairdocs.org/sdr/VNAA9711004), Nov 4, 1997: BATTERY. DISCHARGED. DURING THE PREFLIGHT INSPECTION,THE CENTER EMERGENCY FLOOR PATHWAY LIGHTING WAS NOTED TO BE INOPERATIVE. MAINTENANCE INSPECTED AND REPLACED THE NUMBER TWO BATTE - [SDR VNAA9710011](https://openairdocs.org/sdr/VNAA9710011), Oct 24, 1997: BATTERY. DISCHARGED. DURING PREFLIGHT INSPECTION, THE CENTER SECTION OF THE EMERGENCY FLOOR PATHWAY LIGHTING WAS DISCOVERED TO BE INOPERATIVE. MAINTENANCE INSPECTED AND REPLACED THE - [SDR VNAA9710001](https://openairdocs.org/sdr/VNAA9710001), Oct 15, 1997: BATTERY PACK. DISCHARGED. DURING THE PREFLIGHT CHECK, THE CREW NOTICED THE MIDDLE SECTION FLOOR LEVEL EMERGENCY LIGHTS TO BE INOPERATIVE. MAINTENANCE INSPECTED AND REPLACED THE BATTERY P All 60: https://openairdocs.org/aircraft/N437JS/reports.md ## Related - Other Sowalsky John W EXCALIBUR aircraft: https://openairdocs.org/model/sowalsky-john-w-excalibur/aircraft.md - STCs for the Sowalsky John W EXCALIBUR: https://openairdocs.org/model/sowalsky-john-w-excalibur/stcs.md - The Aeromoment AM13 series engine: https://openairdocs.org/engine/aeromoment-am13-series.md --- From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.