Weatherly 620A

Aircraft model · Fixed wing single engine · Airplane · registry code 9630603

Manufacturer (registry)
WEATHERLY AVIATION CO INC
Model
620A
Registry code
9630603
Registered
6 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 · 10

1989Registered nowDeregistered2026
Aircraft by the year they were built: 10 aircraft
19892
19901
19914
19923

Airworthiness directives that may apply · 3

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

1996In forceSuperseded2026
ADs by the year they took effect: 3 ADs
19961
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 ('9630603'))
  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 · 6

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 ('9630603')
  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.

NTSB investigations · 5

Aircraft matched to this model through the registry, by N-number and event date, checked against the reported serial number, make and model.

Defining event, 2008 on

Of 2 cases NTSB coded with a defining event. All defining events

In the probable cause, 2008 on

Findings NTSB made part of the probable cause. A case can have several. All findings

First occurrence, 1982 to 2007

Of 3 cases with NTSB’s older coding, defined in its coding manual.

NTSB CEN22LA340Accident · No injuriesClass 4 · LimitedFinal reportWeatherly 620A · Stewart, MNThe pilot’s failure to maintain adequate clearance from crops during an agricultural flight.Jul 25, 2022 · N4651W · Substantial damageNTSB CEN15LA272Accident · Serious injuriesLimited investigationFinal reportWeatherly 620A · Van Horn, TXThe loss of engine power for reasons that could not be determined based on the available information.Jun 14, 2015 · N4659N · Substantial damageNTSB CHI03LA254Accident · No injuriesLimited investigationFinal reportWeatherly 620A · Doland, SDThe pilot's failure to maintain clearance from the wires and directional control not being possible due to the failure of the brake system. Factors contributing to the accident were the wires, the trees, and the failure of the brake system.Aug 10, 2003 · N4656M · Substantial damageNTSB CHI03LA134Accident · Minor injuriesLimited investigationFinal reportWeatherly 620A · Melville, NDThe pilot's failure to maintain clearance from the wires. The low altitude operation and the wires were contributing factors.May 24, 2003 · N4650W · Substantial damageNTSB ATL92LA154Accident · Minor injuriesLimited investigationFinal reportWeatherly 620A · Cobb, GAThe corroded, and separated, magnetic chip detector plug which allowed the loss of all engine oil and the engine's subsequent seizure. Factors were the inadequate 100 hour inspection, and the high vegetation in the forced landing field.Aug 9, 1992 · N4650W · 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 ('9630603')
  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 · 7

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

Accident 20220725007809AWeatherly 620A · Stewart, MNThe pilot was on his fourth pass that morning spraying a field of corn. As he dropped in over top of a tree grove the main landing gear contacted the corn 250 feet past the tree line. Pilot was unable to recover and the aircraft impacted the ground and came…Jul 25, 2022 · N4651W · Substantial damageAccident 20150614009869AWeatherly 620A · Van Horn, TXOn June 14, 2015, at 11:25 a.m. central time, a Weatherly 620-A aircraft bearing registration number N4659N, registered to devil dusters inc., and leased to guadalupe ag services, lost engine power while spraying a pecan orchard 11 miles south of Van Horn,…Jun 14, 2015 · N4659N · DestroyedAccident 20030810018639AWthrly 620A · Doland, SD(-23) Mr. Hofer was doing an aerial application job one mile nw of the town of Doland, SD. He hit some power lines with his aircraft causing damage to the power lines. This wire strike also caused damage to the aircraft brake lines. After the pilot hit the…Aug 10, 2003 · N4656M · Substantial damageAccident 20030522010909AWthrly 620A · Melville, ND(-23) On 05/22/2003 at 1911 CDT, a weatherly, N4650W, owned by foss & meier flight service, devils lake, ND and flown by clemens r. meier was substantially damaged during a aerial application flight. The commercial rated pilot did not report any mechanical…May 22, 2003 · N4650W · Substantial damageIncident 19990724025249IWthrly 620A · Oneill, NE(-23) Just after takeoff, aircraft experienced a wide power fluctuation and then loss of power. Operator banked the plane right, released the load of chemicals, and made an emergency landing in an alfalfa field. Aircraft came to rest with no damage to the…Jul 24, 1999 · N4647GIncident 19970726025449IWthrly 620 · Orovada, NVFailed clear wire on pullup from fpray run. Caught on spray pump. Broke a blade. Landed safely.Jul 26, 1997 · N4650W · Minor damageAccident 19920809033189AWthrly 620 · Cobb, GALost oil during spray runs. Engine seized. Nosed over landing. Chip detector plug came out causing oil loss.Aug 9, 1992 · N4650W · 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 ('9630603')
  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

No reports name this modelGeneral aviation reporting is voluntary.

STCs that may be installed · 30

Approved for this model: the STC’s model list names it on its data sheet, or a series that includes it. The registry doesn’t record which STCs an aircraft has.

See all 30 STCs
Query with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
  FROM (
    SELECT stc_number, min(matched_model) AS matched_model
    FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_stc.parquet'
    WHERE aircraft_model_code IN ('9630603')
    GROUP BY stc_number
  ) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
  ORDER BY s.status = 'Current' DESC, s.status_date 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.