Alon A2 airworthiness directives

Aircraft by year built · 194

1963Registered nowDeregistered2026

Aircraft by the year they were built: 194 aircraft
1963	1
1964	1
1965	62
1966	112
1967	13
1968	1
1979	1
1980	1
1998	1
2012	1

Airworthiness directives that may apply · 5

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

1979In forceSuperseded2026

ADs by the year they took effect: 6 ADs
1979	1
1995	1
2003	2
2012	1
2022	1

Airframe · Alon A2

AD 2022-03-15Fuel Quantity IndicatorEffective Mar 21, 2022 AD 2012-08-06Flight ControlsEffective Oct 3, 2012 · Supersedes AD 52-02-02 AD 2003-21-01Outer wing panelsEffective Dec 1, 2003 · Supersedes AD 94-18-04 R1 AD 2002-26-02Wing Center SectionEffective Feb 14, 2003 AD 79-07-02BatteriesEffective Apr 3, 1979

Superseded and historical ADs · 1

AD 94-18-04 R1Outer Wing PanelsHistoricalEffective Mar 24, 1995 · Replaced by AD 2003-21-01

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 ('0540102'))
  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.

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 ('0540102'))
ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC

Run 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.

Information bulletins that may apply · 2

Airframe · Alon A2

SAIB CE-14-03Wing Spar DamageIssued Nov 15, 2013 SAIB CE-04-69Issued Jun 9, 2004

Query with SQL

duckdb -csv -c "SELECT s.saib_number, any_value(s.title) AS title, max(s.issue_date) AS issue_date, any_value(s.status) AS status
  FROM 'https://openairdocs.org/data/latest/faa_saib.parquet' s
  WHERE s.saib_id IN (SELECT saib_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_saib.parquet' WHERE aircraft_model_code IN ('0540102'))
  GROUP BY s.saib_number ORDER BY issue_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.

SELECT s.saib_number, any_value(s.title) AS title, max(s.issue_date) AS issue_date, any_value(s.status) AS status
FROM 'https://openairdocs.org/data/latest/faa_saib.parquet' s
WHERE s.saib_id IN (SELECT saib_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_saib.parquet' WHERE aircraft_model_code IN ('0540102'))
GROUP BY s.saib_number ORDER BY issue_date DESC

Run 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.

Registered aircraft · 144

N103DBZelasko Edward P · Oxford, WIS/N A-86 N113WMStarke Charles H III · Weirsdale, FLBuilt 1966 · S/N A-114 N15AVRoquemore William A Jr · Lakeland, GABuilt 1966 · S/N A-154

See all 144 registered aircraft

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 ('0540102')
  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 ('0540102')
ORDER BY n_number

Run 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.

STCs approved for this model · 89

STC SA00068SEInstallation of fuel flow/pressure instruments. (W/TSIO-360-MB1)Electronics International Inc.STC SA00071SECockpit sun visor installation.Rosen Sunvisor Systems LLC STC SA00079NYInstallation of Airwolf remote mounted engine oil filter kit AFC-K008 on single and multi engine fixed wing light aircraft incorporating Teledyne Continental reciprocating engines of 450 horsepower or less.Airwolf Filter Corporation

See all 89 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 = 'A2')
  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.

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 = 'A2')
ORDER BY s.status = 'Current' DESC, s.stc_number

Run 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 · 110

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

Defining event, 2008 on

Of 12 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 22 cases with NTSB’s older coding, defined in its coding manual.

NTSB CEN25LA264Accident · No injuriesClass 4 · LimitedFinal reportAlon A2 · Pipestone, MNThe failure of the left brake to release due to corrosion and pitting of the caliper piston and bore, which resulted in a runway excursion.Jul 20, 2025 · N6557Q · Substantial damage NTSB WPR22LA050Accident · Serious injuriesClass 4 · LimitedFinal reportAlon A2 · Frazier Park, CAThe pilot’s failure to maintain adequate airspeed while on approach for landing which, resulted in an aerodynamic stall and collision with terrain.Nov 24, 2021 · N989T · Substantial damage NTSB ERA21LA358Accident · Minor injuriesClass 4 · LimitedFinal reportAlon A2 · Abingdon, VAThe failure of a nosewheel steering actuator arm, which resulted in a loss of control during the landing rollout.Sep 13, 2021 · N5644F · Substantial damage

See all 110 investigations

Query with SQL

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 ('0540102') ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

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 ('0540102')
  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 ('0540102')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

Run 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 · 69

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

Incident 20251019015779IAlon A2 · La Verne, CAAerocoupe [privacy data omitted], departed el monte airport at approximately 9:13AM on Sunday October 19, 2025, enroute to kpoc – Bracket airport. On the left downwind for runway 29L, tower asked [privacy data omitted] if he could take a short approach for…Oct 19, 2025 · N6527Q · Minor damage Accident 20250720012419AAlon A2 · Pipestone, MNThe PIC approached the grass runway, touched down, and the aircraft pulled hard left. The pilot applied full right rudder and full right aileron but was unable to counter the hard left pull. The aircraft veered left and entered an adjacent corn field, where…Jul 20, 2025 · N6557Q · Substantial damage Accident 20211124021979AAlon A2 · Frazier Park, CADue to unexpected low fuel level indication, the pilot attempted to make an emergency landing in a field. On approach the pilot kept the airspeed slow due to landing location. This caused the aircraft to stall, and bank left at a low altitude, at which point…Nov 24, 2021 · N989T · Substantial damage

See all 69 incident reports

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 ('0540102')
  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 ('0540102')
ORDER BY event_date DESC, report_number DESC

Run 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 · 4

SDR 2023FA0000628Cylinder · damagedWE OVORNOULED LHLS ENGINE WITH FOUR (4), NEW CMI. (CONTINENTAL MOTORS INC) CY!NDER ASSEMBLIES. AL 112. 7 HO<N, WO HAD 10 REPLACE ALL FOUR CYLINDER AUEMBLIOS DUE 10 OIL WEEPING OUT BETWEEN COOIING FINS 11/CUND THE OUTSIDE OWC)S.TE OL WL\EFE U,E E.:J\A\JST VALVESep 30, 2023 · N6557Q · Alon A2 · Reciprocating Engine Cylinder Section SDR 2020FA0000417Ignition Switch · erraticDURING TROUBLESHOOTING A LEFT MAGNETO FOR NO SPARK, FOUND IGNITION SWITCH (TCM PN 10-357290-1, SN H16H) SHOWED INTERMITTENT OPEN CONTACT WITH KEY IN OFF AND RIGHT POSITION WITH SLIGHT ROTARY MOVEMENT OR VERTICAL MOVEMENT. BOTH POSITIONS SHOULD INDICATE CONSTASep 20, 2020 · N5642F · Alon A2 · Ignition Switching SDR 2020FA0000416Coil · openREPLACED OPEN COIL(PN K3975) ON LEFT SLICK MAGNETO PN 4301 ON 09-20-2020. MAGNETO UNIT WAS OVERHAULED BY KELLY AEROSPACE, PN 4301R SN F-01242, AND INSTALLED ON AIRCRAFT ON 03-12-2017 AT 3152.94 HOURS TACH. COIL SHOWED NO CONTINUITY (OPEN) AT 193.61 HOURS IN Sep 20, 2020 · N5642F · Alon A2 · Magneto/Distributor SDR 2011FA0000338Fuel Sys · unbalancedOWNER NOTES THAT UNEVEN FUEL DRAW FROM FUEL TANKS, HAS SUPPLIED VENTED CAPS. RT TANK DOES NOT DRAW EVEN WITH LT TANK. RT TANK STAYS FULL AS LT TANK LOWERS. THIS HAPPENS ABOVE 95 MPH IAS. FUEL SYS HAS BEEN CHECKED FOR BLOCKAGE, NONE FOUND. PRESSURE IN TANKMay 17, 2011 · N95CV · Alon A2 · Engine Fuel and Control

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 = 'A2'
  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.

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 = 'A2'
ORDER BY difficulty_date DESC

Run 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.

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 = 'A2' AND m.code NOT IN ('0540102')
  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 = 'A2' AND m.code NOT IN ('0540102')
GROUP BY ALL
ORDER BY aircraft DESC
LIMIT 12

Run 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.