# Weatherly 620 - Type: Aircraft model (FAA registry) - Registry code: 9630602 - Manufacturer (registry): WEATHERLY - Model: 620 - Aircraft type: Fixed wing single engine - Category: Airplane - Engines: 1 · Reciprocating - Seats: 1 - Weight class: Up to 12,499 lb - Certification: Type certificated - Data sheet: [TCDS A26WE](https://openairdocs.org/tcds/A26WE) (OpenAirDocs) - Holder: Weatherly Aircraft Company - Registered aircraft: 2 - Page: https://openairdocs.org/model/weatherly-620 Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2020-10-03](https://openairdocs.org/ad/2020-10-03): Wing Attach Hinge Fitting · Weatherly 201, 201A, 201B and 6 more. Effective Jun 15, 2020 - [AD 2016-07-11](https://openairdocs.org/ad/2016-07-11): Wing Attach Fittings · Weatherly 201, 201A, 201B and 6 more. Effective Apr 15, 2016 ## Registered aircraft (2) - [N4621A](https://openairdocs.org/aircraft/N4621A): [Schindler Rick M](https://openairdocs.org/faa-owner/SCHINDLER%20RICK%20M), [Neligh, NE](https://openairdocs.org/faa-place/NE/Neligh), built 1982, S/N 1515 - [N9263W](https://openairdocs.org/aircraft/N9263W): [Page Aerial Service](https://openairdocs.org/faa-owner/PAGE%20AERIAL%20SERVICE), [Rochelle, IL](https://openairdocs.org/faa-place/IL/Rochelle), S/N 1503 ## NTSB investigations (10) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB ERA17CA251](https://openairdocs.org/ntsb/ERA17CA251), Jul 19, 2017: Weatherly 620 (N9270W), Pemberton Twp, NJ, substantial damage. Probable cause: An in-flight collision with a bird during takeoff, which resulted in a partial loss of engine power and subsequent collision with trees and terrain. - [NTSB CEN13LA561](https://openairdocs.org/ntsb/CEN13LA561), Sep 25, 2013: Weatherly 620 (N4623M), Ulysses, KS, destroyed. Probable cause: An in-flight fire and subsequent loss of engine power for reasons that could not be determined due to extensive fire damage to the airplane and its fuel and electrical systems. - [NTSB FTW96LA167](https://openairdocs.org/ntsb/FTW96LA167), Apr 9, 1996: Weatherly 620 (N46139), Akron, CO, substantial damage. Probable cause: a total loss of engine power due to failure of the number 2 cylinder. A factor was the limited cockpit visibility due to windscreen damage and engine oil coating. - [NTSB CHI93DEE05](https://openairdocs.org/ntsb/CHI93DEE05), Aug 14, 1993: Weatherly 620 (N4605P), Mendota, IL, destroyed. Probable cause: THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN CLEARANCE FOM POWERLINES DURING AN AERIAL APPLICATION MANUEVER. - [NTSB LAX92LA350](https://openairdocs.org/ntsb/LAX92LA350), Aug 16, 1992: Weatherly 620 (N4623E), Stockton, CA, substantial damage. Probable cause: THE PILOT'S POOR INFLIGHT PLANNING AND VISUAL LOOKOUT. - [NTSB SEA88LA148](https://openairdocs.org/ntsb/SEA88LA148), Aug 8, 1988: Weatherly 620 (N4603G), Wilbur, WA, substantial damage - [NTSB CHI88DEE05](https://openairdocs.org/ntsb/CHI88DEE05), Jul 11, 1988: Weatherly 620 (N4605P), Dekalb, IL, substantial damage. Probable cause: AN ON GROUND ENCOUNTER WITH WEATHER. - [NTSB DEN87LA116](https://openairdocs.org/ntsb/DEN87LA116), Apr 30, 1987: Weatherly 620 (N9256W), Greeley, CO, substantial damage - [NTSB LAX84FUJ04](https://openairdocs.org/ntsb/LAX84FUJ04), Sep 16, 1984: Weatherly 620 (N46032), Waddell, AZ, destroyed, 1 fatal - [NTSB FTW83LA243](https://openairdocs.org/ntsb/FTW83LA243), May 17, 1983: Weatherly 620 (N4619E), Cornerstone, AR, substantial damage ## FAA accident and incident reports (15) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20170719007229A](https://openairdocs.org/incident/20170719007229A), Jul 19, 2017: Weatherly 620 (N9270W), Southhampton, NJ, Destroyed. On 7/19/17 at approximately 1845 the pilot initiated takeoff roll. Approximately 10-20 feet above the runway at approximately 80 mph. The pilot felt a drastic… - [Accident 20130925025679A](https://openairdocs.org/incident/20130925025679A), Sep 25, 2013: Weatherly 620 (N4623M), Ulysses, KS, Destroyed. This aircraft just had an overhauled engine installed at northstar aviation in Ulysses Kansas. The aircraft originally was flown from eads Colorado to Ulysses… - [Accident 19960409006759A](https://openairdocs.org/incident/19960409006759A), Apr 9, 1996: Wthrly 620 (N46139), Akron, CO, Substantial damage. Engine failed, made an emergency landing, ground looped, ended up in a ditch. - [Incident 19950502024649I](https://openairdocs.org/incident/19950502024649I), May 2, 1995: Wthrly 620 (N4615U), Wisner, LA, Minor damage. Lost power. Forced down into plowed field. Engine blower failed. - [Accident 19940524012369A](https://openairdocs.org/incident/19940524012369A), May 24, 1994: Wthrly 620 (N9256W), Ridgeview, SD, Substantial damage. In steep turn lost power switching low fuel right tank to full left. Drew air unporting right tank. Pump not used. - [Accident 19930814029259A](https://openairdocs.org/incident/19930814029259A), Aug 14, 1993: Wthrly 620 (N4605P), Mendota, IL, Destroyed. Struck powerline during spray run under wires. Impact tore off vertical stabilizer. Aircraft crashed beyond line. - [Incident 19920816043579I](https://openairdocs.org/incident/19920816043579I), Aug 16, 1992: Wthrly 620 (N4619E), Sumter, SC, Minor damage. Engine gradually lost power on a low pass. Forced landing. Found engine induction air filter soaked. Had heavy rain - [Accident 19920816031329A](https://openairdocs.org/incident/19920816031329A), Aug 16, 1992: Wthrly 620 (N4623E), Stockton, CA, Substantial damage. Vertical stabilizer was torn off while flying under wires. Made it back to airport but crash landed short runway. - [Incident 19890310020449I](https://openairdocs.org/incident/19890310020449I), Mar 10, 1989: Wthrly 620 (N4623E), Lodi, CA, Minor damage. Left gear damaged when it hit a grapevine during crop dusting. Gear collapsed on landing at Lodi. - [Accident 19880808031469A](https://openairdocs.org/incident/19880808031469A), Aug 8, 1988: Wthrly 620 (N4603G), Wilbur, MO, Substantial damage. Engine lost power. Caught again but not in time to avert hard landing in rough terrain. Fuel pumps seals failed. - [Accident 19880711026219A](https://openairdocs.org/incident/19880711026219A), Jul 11, 1988: Wthrly 620 (N4605P), Dekalb, IL, Substantial damage. Struck trees after takeoff. Blamed windshear. Numerous dust devils in area. - [Accident 19870430013069A](https://openairdocs.org/incident/19870430013069A), Apr 30, 1987: Wthrly 620 (N9256W), Greeley, CO, Substantial damage. The engine failed from fuel starvation. The aircraft nosed over on a hard landing. Fuel selector not in detent. - [Accident 19840916048349A](https://openairdocs.org/incident/19840916048349A), Sep 16, 1984: Wthrly 620 (N46032), Waddell, AZ, Destroyed. Vertical stabilizer was torn off while flyling under a powerline. Went into a vertical bank crashed and burned. - [Incident 19840309012379I](https://openairdocs.org/incident/19840309012379I), Mar 9, 1984: Wthrly 620 (N4603G), Espanola, WA, Minor damage. Right main gear struck the ground on a spray run. Aircraft flew back to base with a damaged wheel. - [Accident 19830517074779A](https://openairdocs.org/incident/19830517074779A), May 17, 1983: Wthrly 620 (N4619E), Cornerstone, AR, Substantial damage. Float fulcrum screw backed out of carburetor causing power loss and crash during emergency landing attempt. ## Service difficulty reports (3) As reported by operators and repair stations, by the model named in the report. - [SDR 98ZZZX707](https://openairdocs.org/sdr/98ZZZX707), Jan 12, 1998: PUSH ROD. LOOSE. REAR ELEVATOR CONTROL TUBE WAS FOUND TO HAVE MOVEMENT BETWEEN FRONT ATTACH FITTING AND TUBE. THE CAUSE IS BELIEVED TO BE A DEFECT WHICH OCCURRED IN MANUFACTURIN - [SDR 97ZZZX385](https://openairdocs.org/sdr/97ZZZX385), Jan 16, 1997: FITTING. RUSTED. WHEN PERFORMING AN ANNUAL INSP, IT WAS NOTED THAT ALL THE WING TO CENTER SECTION FITTINGS WERE SEVERELY RUSTED, NO PITTING HAS YET OCCURRED ON ANY OF THESE FITT - [SDR AU961165](https://openairdocs.org/sdr/AU961165), Jul 30, 1996: PIN. MISMANUFACTURED. (AUS) WING HINGE PINS FAULTY - DEPTH OF THREADED HOLES VARIES BETWEEN 21.463MM AND 21.844MM (0.845IN AND 0.860IN) - MAXIMUM DEPTH OF HOLE IS 21.336MM (0.840IN) ## STCs that may be installed (OpenAirDocs) (33) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SA00444SE](https://openairdocs.org/stc/SA00444SE): Install vortex generators on wings. Micro AeroDynamics Inc - [STC SA00458SE](https://openairdocs.org/stc/SA00458SE): Fabrication and installation of vortex generators mounted on wings. Aeronautical Testing Service Inc - [STC SA00477WI](https://openairdocs.org/stc/SA00477WI): Installation of a Compro Driftfinder DFS-10 to system which injects oil into engine exhaust to produce smoke to determine wind speed and direction. Compro Aviation Inc - [STC SA00622LA](https://openairdocs.org/stc/SA00622LA): Installation of an electronic digital engine tachometer horizon model P-1000. Horizon Instruments Inc - [STC SA00680SE (2 OF 6](https://openairdocs.org/stc/SA00680SE%20(2%20OF%206): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer. Electronics International - [STC SA01258SE](https://openairdocs.org/stc/SA01258SE): Installation of the Automatic Flagman Dispenser Models in accordance with Automatic Flagman Master Drawing Lists specified in attached AML, or later FAA approved revision.This STC supercedes several existing STC s as listed in the notes on the attached AML. R-S Sales Inc - [STC SA01282NY](https://openairdocs.org/stc/SA01282NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K015 on aircraft powered by Pratt & Whitney radial reciprocating engine Series R-985, R-1340 and R-1830. Airwolf Filter Corporation - [STC SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC - [STC SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc - [STC SA01967WI (3 OF3)](https://openairdocs.org/stc/SA01967WI%20(3%20OF3)): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc - [STC SA01988SE](https://openairdocs.org/stc/SA01988SE): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) MVP-50P. Electronics International Inc - [STC SA02168AK](https://openairdocs.org/stc/SA02168AK): Installation of hourmeter airspeed switch. For unpressurized aircraft only. Pressurized aircraft must have pressurization system deactivated. Avalaska Inc - [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation - [STC SA02283SE PAGE 2](https://openairdocs.org/stc/SA02283SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P. Electronics International Inc - [STC SA02402SE PAGE 2](https://openairdocs.org/stc/SA02402SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C. Electronics International Inc - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA1626NM PAGE 2](https://openairdocs.org/stc/SA1626NM%20PAGE%202): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International - [STC SA1877CE](https://openairdocs.org/stc/SA1877CE): Operation of airplane on unleaded and leaded automotive gasoline. Petersen Aviation Inc - [STC SA2190NM PAGE 2](https://openairdocs.org/stc/SA2190NM%20PAGE%202): Installation of electronics International Digital Volt/Amp Gauges and Accessories. Electronics International - [STC SA2350NM PAGE 2](https://openairdocs.org/stc/SA2350NM%20PAGE%202): Installation of Electronics International Inc digital carburetor/outside air temperature gauges. Electronics International - [STC SA2423SO](https://openairdocs.org/stc/SA2423SO): Installation of Chemical Evacuation System to remove residue from the agricultural spray dispersal system. Paul S Woods - [STC SA2586NM](https://openairdocs.org/stc/SA2586NM): Installation of J.P. Instruments temperature monitoring systems. J P Instruments - [STC SA2687NM](https://openairdocs.org/stc/SA2687NM): Installation of Truboplus/ Electronics Int'l gauges and switches. Aero Manufacturing Inc - [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc - [STC SA330NW](https://openairdocs.org/stc/SA330NW): Installation of automatic flagman model no 4. R-S Sales Inc - [STC SA3862NM PAGE 2](https://openairdocs.org/stc/SA3862NM%20PAGE%202): Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories. Electronics International - [STC SA4005NM](https://openairdocs.org/stc/SA4005NM): Precise Flight Inc. Pulselite Control System. Precise Flight Inc - [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International - [STC SA5190NM](https://openairdocs.org/stc/SA5190NM): Installation of Gustin Aviation chip detector light system. A & L Aircraft Parts Inc - [STC SA6070NM](https://openairdocs.org/stc/SA6070NM): Installation of a 'quick-disconnect drain plug' on the engine rocker sump for the oil drain retrieval system after engine shutdown. West Coast Air Creations - [STC SA7965SW](https://openairdocs.org/stc/SA7965SW): Application of fabric and polyurethane finishing system. Shady Aviation LLC - [STC SA01240SE (5 OF 5)](https://openairdocs.org/stc/SA01240SE%20(5%20OF%205)) (historical): Installation of secondary voltage indication system. Visual Instruments LLC - [STC SA2350NM](https://openairdocs.org/stc/SA2350NM) (historical): Installation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories. Electronics International ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Cessna 620](https://openairdocs.org/model/cessna-620): 0 registered aircraft, registry code 2076790 --- 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.