- Manufacturer (registry)
- AS+ LTD
- Model
- AC 4
- Registry code
- 05628R1
- Registered
- 23 aircraft
- Type
- Glider
- Engines
- None
- Seats
- 1
- Weight class
- Up to 12,499 lb
- Certification
- Type certificated
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 · 31
| 1995 | 8 |
|---|---|
| 1996 | 4 |
| 1997 | 3 |
| 1998 | 4 |
| 1999 | 9 |
| 2000 | 1 |
| 2004 | 1 |
| 2009 | 1 |
Airworthiness directives that may apply · 0
ADs whose products match this airframe model. Each AD’s applicability may narrow it by serial number, part number or configuration.
No ADs matched this model
Registered aircraft · 23
N1042Estell William S · Wilmington, OHN116RRGross Gary O · Beaverton, ORN126LJHudson Peter O · Ridgecrest, CA
See all 23 registered aircraftQuery 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 ('05628R1')
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.
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 ('05628R1')
ORDER BY n_numberRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB investigations · 7
Aircraft matched to this model through the registry, by N-number and event date, checked against the reported serial number, make and model.
Of 1 case NTSB coded with a defining event. All defining events
Findings NTSB made part of the probable cause. A case can have several. All findings
Of 6 cases with NTSB’s older coding, defined in its coding manual.
NTSB CEN17LA181Accident · 1 fatalLimited investigationFinal reportAS+ AC 4 · Blair, NEThe pilot's loss of control due to his diverted attention as he attempted to close the canopy that opened during initial climb.NTSB LAX05LA239Accident · 1 fatalLimited investigationFinal reportAs+ AC4 · Sparks, NVthe pilot's failure to maintain an adequate airspeed while performing S-turns on final approach, which resulted in a stall and uncontrolled descent into terrain. A contributing factor in the accident was the pilot's impairment due to ingestion of an…NTSB SEA05LA114Accident · 1 fatalLimited investigationFinal reportAvia Stroitel AC-4B · Wenatchee, WAThe pilot's failure to maintain terrain clearance for undetermined reasons.NTSB CHI01LA332Accident · Serious injuriesLimited investigationFinal reportAviaStrottel AC 4C · Marshfield, MIThe pilot's decision to release from the tow plane during the takeoff. A factor associated with the accident was the pilot's vision was restricted by his hat during the takeoff.NTSB FTW98LA223Accident · Serious injuriesLimited investigationFinal reportAS+ AC-4 · Cedar Fort, UTFailure by the pilot to maintain control of the aircraft. A factor was lack of experience in make and model.NTSB FTW97LA349Accident · No injuriesLimited investigationFinal reportAS+ AC-4B · Sundance, WYimproper planning/decision by the pilot, which led to a snag and sudden slack in the tow rope, and necessitated an aborted launch (emergency landing) after initial liftoff. This in turn led to an inadvertent stall, a wing drop, and the left wing tip dragging…NTSB CHI96LA165Accident · Serious injuriesLimited investigationFinal reportAS+ AC 4 · Hartford, WIlack of airspeed control by the pilot, while maneuvering.
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 ('05628R1')
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.
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 ('05628R1')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
FAA incident reports · 8
Matched to this model through the registry, by N-number and event date, checked against the reported make and model.
Accident 20170513008889AAS+ AC 4 · Blair, NEOn may 13, 2017, at approximately 1520 CDT, N358R, an aviastroitel As+ Ltd ac 4 sailplane, crashed while attempting to take off from a grass field located just northeast of the approach end of runway 13 at the Blair municipal airport (bta) in Blair NE. The…Accident 20050719016799AAmtr AC4 · Sparks, NV(-23) The pilot, who was the sole occupant of N9276Y during an approach to landing on runway 21 at air Sailing, operated the aircraft in a manner that resulted in a low altitude stall/spin.Accident 20050611011239AAmtr AC4 · Wenatchee, WA(-23) A/c struck ground during attempt to reach pangborn field (eat) after aerial tow release northeast of eat. A/c struck ground LH wingtip first with virtually no forward motion.Incident 20040714020219IAmtr AC4 · Waynesville, OH(-23) On July 14, 2004, at 1430 EDT, an as+ ltd, model AC4 glider, N226CC, registered to twelve point six inc., made a hard landing in a field near Caesar Creek glider port (2OH9), Waynesville, Ohio, while on a local flight. Visual meteorological conditions…Accident 20010929028599AN68PR · Marshall, MI(-23) On September 29, 2001, at 1425 EST., an as+ltd AC4 glider, N68PR collided with the ground during a takeoff attempt from brooks field, Marshall, Michigan. The pilot lost control of the aircraft during takeoff when his hat slipped over his eyes and…Accident 19980516009559AN158R · Cedar Fort, UTWhile on down wind in the landing pattern, the aircraft was observed enter a nose low attitude and impact the ground. Weather at the time was clearskies and calm winds. Examination of the aircraft provided no evidence of preimpact failure or malfunction. The…Accident 19970914047149AN3021 · Sundance, WY(-16) Glider launch system failed to propel aircraft into flight, pilot released tow cable to maintain aircraft control and avoid injury.Accident 19960518010759AN29HS · Hartford, WIOn test flight, glider started to spin, no controls, inverted, pilot bailed out, crashed short of airport. (-23) on may 18, 1996, at 1500 CST, an as+ ltd AC-4, russian built glider, N29HS, operated by scott l. dizack, was performing the first flight of a FAA…
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 ('05628R1')
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.
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 ('05628R1')
ORDER BY event_date DESC, report_number DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Service difficulty reports
No reports name this modelGeneral aviation reporting is voluntary.
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 = 'AC4' AND m.code NOT IN ('05628R1')
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.
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 = 'AC4' AND m.code NOT IN ('05628R1')
GROUP BY ALL
ORDER BY aircraft DESC
LIMIT 12Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.