Cessna 305A airworthiness directives

Aircraft by year built · 195

1950Registered nowDeregistered2026

Aircraft by the year they were built: 195 aircraft
1950	12
1951	101
1952	12
1953	13
1954	1
1955	2
1957	1
1958	1
1959	1
1961	1
1962	1
1964	2
1965	2
1966	3
1967	2
1971	3
1972	15
1973	6
1974	1
1975	1
1980	3
1982	7
1986	1
1991	1
1994	1
2005	1

Airworthiness directives that may apply · 1

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

Airframe · Cessna 305A

AD 75-04-04Oil Line System

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 ('2074002'))
  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 ('2074002'))
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.

Registered aircraft · 166

N100RLLong Randy B · Coleman, TXBuilt 1951 · S/N 21512 N10442Hilty David J · Kodiak, AKBuilt 1957 · S/N 22595 N10445Hartz Mark E · Stuttgart, ARBuilt 1953 · S/N 23397

See all 166 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 ('2074002')
  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 ('2074002')
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 · 101

STC SA00061LAInstallation of JPI digital tachometer.J P Instruments STC SA00066SEFabrication of interchangeable float spreader bars.Aerocet Inc STC SA00068SEInstallation of fuel flow/pressure instruments. (W/TSIO-360-MB1)Electronics International Inc.

See all 101 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 = '305A')
  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 = '305A')
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 · 151

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

Defining event, 2008 on

Of 31 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 58 cases with NTSB’s older coding, defined in its coding manual.

NTSB CEN25LA268Accident · No injuriesClass 4 · LimitedFinal reportCessna 305A · Baraboo, WIThe pilot’s failure to maintain directional control during landing.Jul 20, 2025 · N9623Q · Substantial damage NTSB ERA24LA358Accident · No injuriesClass 4 · LimitedFinal reportCessna 305 · Sterling, MAThe pilot’s failure to maintain directional control of the airplane during the landing roll, which resulted in a ground loop and subsequent landing gear collapse. Contributing was the flight instructor’s delayed remedial action.Aug 25, 2024 · N5673B · Substantial damage NTSB ERA24LA268Accident · No injuriesClass 4 · LimitedFinal reportCessna 305 · Painted Post, NYThe pilot’s failure to maintain directional control of the airplane during an aborted landing, which resulted in runway excursion and collision with a ditch.Jun 12, 2024 · N5309G · Substantial damage

See all 151 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 ('2074002') 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 ('2074002')
  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 ('2074002')
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 · 170

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

Incident 20250822010729ICessna 305A · Nampa, IDAfter landing on runway 29 at kman, the pilot stated the airplane began to drift to the right and he attempted to correct with left rudder input. The airplane would not correct as he needed and continued off of the runway into the infield. Once the airplane…Aug 22, 2025 · N5263G · Minor damage Accident 20250720011709ACessna 305A · Baraboo, WIIn the pilot’s statement the plan was to stop fuel in kdll winds were 100 at 6 mph. He set up for landing on rwy 19 anticipated crosswinds seemed negligible. He did not notice much crab required for landing. He stated his flare to initial touchdown was a…Jul 20, 2025 · N9623Q · Substantial damage Accident 20240825017409ACessna 305A · Sterling, MAOn 25 August 2024, at 1915(z) the FAA received notice regarding an accident involving a Cessna 305 landed on runway and during landing roll out ground looped causing the aircraft to flip on its side for unknown reasons. 2 people on board, no injuries, and…Aug 25, 2024 · N5673B · Substantial damage

See all 170 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 ('2074002')
  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 ('2074002')
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 · 33

SDR CA150806002Magneto · intermittent(CAN) PILOT REPORTED EXCESSIVE LT MAG DROP DURING RUN-UP PROCEDURE, 200RPM. CONFIRMED MAG DROP. INVESTIGATION REVEALED LT MAG ONLY OPERATING INTERMITTENTLY. REMOVED MAG FOR RETURN TO O/H FACILITY FOR INSPECTION AND INSTALLED SERVICABLE O/H MAG. LT MAG TIME Aug 2, 2015 · Cessna 305A · Magneto/Distributor SDR CA150508014Reinforcement · cracked(CAN) CRACK FOUND ON RT REINFORCEMENT PLATE, STEEL. BULKHEAD UNDER THE REINFORCEMENT PLATE CRACKED AS WELL. CAUSE UNKNOWN BUT MANY CYCLES DONE IN THE LAST 20 YEARS BECAUSE OF GLIDER TOWING.Nov 6, 2014 · Cessna 305A · Fuselage Main, Structure SDR CA130516008Cylinder Head · broken(CAN) BULGE WAS FOUND IN NR 2 CYLINDER ROCKER BOX COVER. INSPECTION REVEALED EXHAUST SIDE ROCKER PIN SUPPORT BOSS/JOURNAL BROKEN. 2 EQUAL PARTS OF THE OUTSIDE RADIUS HAD DETACHED AND WERE LODGED IN BOTTOM OF ROCKER BOX. BRASS BEARING WAS STILL ATTACHED TO PMay 10, 2013 · Cessna 305A · Reciprocating Engine Cylinder Section

See all 33 difficulty reports

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 = '305A'
  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 = '305A'
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 = '305A' AND m.code NOT IN ('2074002')
  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 = '305A' AND m.code NOT IN ('2074002')
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.