Weatherly 620

Aircraft model · Fixed wing single engine · Airplane · registry code 9630602

Manufacturer (registry)
WEATHERLY
Model
620
Registry code
9630602
Registered
2 aircraft
Type
Fixed wing single engine
Engines
1 · Reciprocating
Seats
1
Weight class
Up to 12,499 lb
Certification
Type certificated
Data sheet
TCDSA26WE
Holder
Weatherly Aircraft Company

Model codes come from the FAA registry’s reference file. ADs are matched to them by model name and maker.

On this page

Aircraft by year built · 12

1979Registered nowDeregistered2026
Aircraft by the year they were built: 12 aircraft
19791
19803
19813
19823
19861
19891

Airworthiness directives that may apply · 2

ADs whose products match this airframe model. Each AD’s applicability may narrow it by serial number, part number or configuration.

2016In forceSuperseded2026
ADs by the year they took effect: 2 ADs
20161
20201
Query with SQL
duckdb -csv -c "SELECT d.ad_number, d.status, d.subject, d.effective_date
  FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
  WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_directive.parquet' WHERE aircraft_model_code IN ('9630602'))
  ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Registered aircraft · 2

Query with SQL
duckdb -csv -c "SELECT n_number, serial_number, year_manufactured, status, registrant_name, registrant_city, registrant_state
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet'
  WHERE aircraft_model_code IN ('9630602')
  ORDER BY n_number"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

STCs approved for this model · 33

See all 33 STCs
Query with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date
  FROM 'https://openairdocs.org/data/latest/faa_stc.parquet' s
  WHERE s.stc_number IN (SELECT stc_number FROM 'https://openairdocs.org/data/latest/faa_stc_model.parquet' WHERE model_key = '620')
  ORDER BY s.status = 'Current' DESC, s.stc_number"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB investigations · 10

Aircraft matched to this model through the registry, by N-number and event date.

NTSB ERA17CA251Accident · No injuriesData collectionFinal reportWeatherly 620 · Pemberton Twp, NJAn in-flight collision with a bird during takeoff, which resulted in a partial loss of engine power and subsequent collision with trees and terrain.Jul 19, 2017 · N9270W · Substantial damageNTSB CEN13LA561Accident · No injuriesLimited investigationFinal reportWeatherly 620 · Ulysses, KSAn 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.Sep 25, 2013 · N4623M · DestroyedNTSB FTW96LA167Accident · No injuriesLimited investigationFinal reportWeatherly 620 · Akron, COa 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.Apr 9, 1996 · N46139 · Substantial damageNTSB CHI93DEE05Accident · Serious injuriesFinal reportWeatherly 620 · Mendota, ILThe pilot-in-command's failure to maintain clearance fom powerlines during an aerial application manuever.Aug 14, 1993 · N4605P · DestroyedNTSB LAX92LA350Accident · No injuriesLimited investigationFinal reportWeatherly 620 · Stockton, CAThe pilot's poor inflight planning and visual lookout.Aug 16, 1992 · N4623E · Substantial damageNTSB SEA88LA148Accident · No injuriesLimited investigationFinal reportWeatherly 620 · Wilbur, WAThe pilot reported that an engine power loss occurred during an aerial application maneuver. The pilot made a forced landing in rough terrain. Examination of the engine revealed deteriorated seals in the engine driven fuel pump. Exam of the electric fuel pump…Aug 8, 1988 · N4603G · Substantial damageNTSB CHI88DEE05Accident · No injuriesFinal reportWeatherly 620 · Dekalb, ILAn on ground encounter with weather.Jul 11, 1988 · N4605P · Substantial damageNTSB DEN87LA116Accident · No injuriesLimited investigationFinal reportWeatherly 620 · Greeley, COThe plt departed with full fuel in the acft to practice aerial spraying techniques. After 45 mins of practice he returned to the arpt for landing. He said that prior to entering the traffic pattern he switched from the half-full right tank to the full left…Apr 30, 1987 · N9256W · Substantial damageNTSB LAX84FUJ04Accident · 1 fatalFinal reportWeatherly 620 · Waddell, AZThe acft collided with a power line during a spray operation. Witnesses said the acft flew under a power line and as it pulled up collided with a line which angled off of the main line. The vertical stabilizer and part of the rudder separated. The acft nosed…Sep 16, 1984 · N46032 · DestroyedNTSB FTW83LA243Accident · No injuriesLimited investigationFinal reportWeatherly 620 · Cornerstone, ARThe acft collided with a dirt bank during a forced landing after the engine quit. The plt said he was making a swath runwhen the engine quit. The flagman said he saw black smoke then white smoke as the engine quit. Post crash investigation revealed that the…May 17, 1983 · N4619E · Substantial damage
Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = a.case_mkey
  WHERE a.aircraft_model_code IN ('9630602')
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

FAA incident reports · 15

Matched to this model through the registry, by N-number and event date.

Accident 20170719007229AWeatherly 620 · Southhampton, NJOn 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 decrease in performannce. The pilot emergency dumped the hopper load. The pilot felt no increase in…Jul 19, 2017 · N9270W · DestroyedAccident 20130925025679AWeatherly 620 · Ulysses, KSThis aircraft just had an overhauled engine installed at northstar aviation in Ulysses Kansas. The aircraft originally was flown from eads Colorado to Ulysses Kansas to have northstar aviation complete GPS satloc updates. Steve rice from northstar reported…Sep 25, 2013 · N4623M · DestroyedAccident 19960409006759AWthrly 620 · Akron, COEngine failed, made an emergency landing, ground looped, ended up in a ditch.Apr 9, 1996 · N46139 · Substantial damageIncident 19950502024649IWthrly 620 · Wisner, LALost power. Forced down into plowed field. Engine blower failed.May 2, 1995 · N4615U · Minor damageAccident 19940524012369AWthrly 620 · Ridgeview, SDIn steep turn lost power switching low fuel right tank to full left. Drew air unporting right tank. Pump not used.May 24, 1994 · N9256W · Substantial damageAccident 19930814029259AWthrly 620 · Mendota, ILStruck powerline during spray run under wires. Impact tore off vertical stabilizer. Aircraft crashed beyond line.Aug 14, 1993 · N4605P · DestroyedIncident 19920816043579IWthrly 620 · Sumter, SCEngine gradually lost power on a low pass. Forced landing. Found engine induction air filter soaked. Had heavy rainAug 16, 1992 · N4619E · Minor damageAccident 19920816031329AWthrly 620 · Stockton, CAVertical stabilizer was torn off while flying under wires. Made it back to airport but crash landed short runway.Aug 16, 1992 · N4623E · Substantial damageIncident 19890310020449IWthrly 620 · Lodi, CALeft gear damaged when it hit a grapevine during crop dusting. Gear collapsed on landing at Lodi.Mar 10, 1989 · N4623E · Minor damageAccident 19880808031469AWthrly 620 · Wilbur, MOEngine lost power. Caught again but not in time to avert hard landing in rough terrain. Fuel pumps seals failed.Aug 8, 1988 · N4603G · Substantial damageAccident 19880711026219AWthrly 620 · Dekalb, ILStruck trees after takeoff. Blamed windshear. Numerous dust devils in area.Jul 11, 1988 · N4605P · Substantial damageAccident 19870430013069AWthrly 620 · Greeley, COThe engine failed from fuel starvation. The aircraft nosed over on a hard landing. Fuel selector not in detent.Apr 30, 1987 · N9256W · Substantial damageAccident 19840916048349AWthrly 620 · Waddell, AZVertical stabilizer was torn off while flyling under a powerline. Went into a vertical bank crashed and burned.Sep 16, 1984 · N46032 · DestroyedIncident 19840309012379IWthrly 620 · Espanola, WARight main gear struck the ground on a spray run. Aircraft flew back to base with a damaged wheel.Mar 9, 1984 · N4603G · Minor damageAccident 19830517074779AWthrly 620 · Cornerstone, ARFloat fulcrum screw backed out of carburetor causing power loss and crash during emergency landing attempt.May 17, 1983 · N4619E · Substantial damage
Query with SQL
duckdb -csv -c "SELECT report_number, event_date, event_type, city, state, aircraft_make, aircraft_model, aircraft_damage, fatal_injuries, n_number
  FROM 'https://openairdocs.org/data/latest/faa_incident_report.parquet'
  WHERE aircraft_model_code IN ('9630602')
  ORDER BY event_date DESC, report_number DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Service difficulty reports · 3

Query with SQL
duckdb -csv -c "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 aircraft_model_key = '620'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

Query with SQL
duckdb -csv -c "SELECT m.code, m.manufacturer, m.model, count(g.n_number) AS aircraft
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_model.parquet' m LEFT JOIN 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet' g ON g.aircraft_model_code = m.code
  WHERE m.match_key = '620' AND m.code NOT IN ('9630602')
  GROUP BY ALL
  ORDER BY aircraft DESC
  LIMIT 12"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.