United Consultants UC-1 airworthiness directives

Aircraft by year built · 3

1967Registered nowDeregistered2026

Aircraft by the year they were built: 3 aircraft
1967	1
1968	1
1987	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 · United Consultants UC-1

AD 2022-03-15Fuel Quantity IndicatorEffective Mar 21, 2022

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 ('9220102'))
  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 ('9220102'))
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 · 1

N87589Johanson Jason · Groveland, CAS/N UC1-R158

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 ('9220102')
  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 ('9220102')
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.

NTSB investigations · 6

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

Unknown or undetermined1 case

Of 1 case NTSB coded with a defining event. All defining events

First occurrence, 1982 to 2007

Loss of control - in flight1 case

Of 1 case with NTSB’s older coding, defined in its coding manual.

NTSB GAA22WA231Accident · 2 fatalClass 5 · ForeignUnited Consultants UC-1 · Lake Siljan, SwedenJul 18, 2022 · N747HJ NTSB SEA95FA012Accident · 2 fatalField investigationFinal reportUnited Consultant UC-1 · Pinedale, WYAircraft control was not maintained. Factors to the accident were: rough water and downdrafts.Oct 27, 1994 · N9501U · Substantial damage NTSB LAX77FUM25Accident · Minor injuriesClosedUnited Cons UC-1 · San Diego, CAApr 15, 1977 · N87589 · Substantial damage NTSB ANC74DAG32Accident · No injuriesClosedStol Acft UC-1 · Mcgrath, AKAug 29, 1973 · N9501U · Substantial damage NTSB ANC73DAG16Accident · No injuriesClosedUnited Cons UC-1 · Larsen Bay, AKJul 28, 1972 · N77PP · Destroyed NTSB ANC71FAG11Accident · No injuriesClosedUnited Cons UC-1 · Anchorage, AKJul 26, 1970 · N9501U · Substantial damage

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 ('9220102') 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 ('9220102')
  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 ('9220102')
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 · 4

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

Accident 19941027045339AStolac UC1 · Pinedale, WYBackfire and explosion heard. Found debris in rough water lake. Student flying in severe turbulence rough water.Oct 27, 1994 · N9501U · Substantial damage · 2 fatal Incident 19780321009489IStolac UC1 · Kenai, AKUncontrollable pitching & vibration after takeoff. Elevator jack screw bound up with grease and dirt.Mar 21, 1978 · N9501U · Minor damage Accident 19770415008669AStolac UC1 · San Diego, CABoost pump quit. Plt feath prop,but left gr & flaps down. Un maintain flt.Apr 15, 1977 · N87589 · Destroyed Accident 19730829028989AStolac UC1 · Mcgrath, AKPilot not rated for sea operations.Aug 29, 1973 · N9501U · 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 ('9220102')
  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 ('9220102')
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 · 1

SDR 2005FA0000634Clamp · crackedLT ENGINE IB EXHAUST TAILPIPE CRACKED, EXPELLING HEAT INTO ENGINE COMPARTMENT, BURNING PAINT ON COWLING. PART FAILURE OCCURRED BECAUSE OF BROKEN SUPPORT CLAMP, NO PN AVAILABLE DUE TO THE LIMITED PRODUCTION OF THIS AIRCRAFT ON EITHER EXHAUST TAILPIPE OR SUPPORFeb 25, 2005 · N65NE · Stolac UC1 · Engine Collector/Tailpipe/Nozzle

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 = 'UC1'
  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 = 'UC1'
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.

STCs that may be installed · 56

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.

STC SA02571SEInstallation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display).Garmin International Inc.STC SA12406WIInstallation of a Garmin AXIS Flight Display SystemGarmin International Inc.STC SA04652CHTo allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specificationSwift Fuels LLC

See all 56 STCs

Query with SQL

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 ('9220102') 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

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 ('9220102')
    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.

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 ('9220102')
  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

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.

PMA parts · 33

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this model on its data sheet, so check the FAA record before relying on it. Newest first.

73-CFG-RFuel Quantity Indication PlacardSwift Fuels, LLC · PMA PQ04423CE · Modification part · Jul 20, 2026 S1069100R Fuel PlacardSwift Fuels, LLC · PMA PQ04423CE · Modification part · Jul 20, 2026 066-106Brake LiningGame Aerospace, LLC · PMA PQ00052CB · Replaces Cleveland Wheels and Brakes P/N… · Jun 9, 2026

See all 33 PMA parts

Query with SQL

duckdb -csv -c "SELECT drs_guid, part_number, part_name, holder, pma_number, replaces_part, supplement_date, tcds_models
  FROM 'https://openairdocs.org/data/latest/faa_type_certificate_pma.parquet'
  WHERE tcds_number IN ('A6EA')
    AND len(list_intersect(tcds_models, ['UC-1 (Twin Bee)'])) > 0
  ORDER BY supplement_date DESC, drs_guid 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 drs_guid, part_number, part_name, holder, pma_number, replaces_part, supplement_date, tcds_models
FROM 'https://openairdocs.org/data/latest/faa_type_certificate_pma.parquet'
WHERE tcds_number IN ('A6EA')
  AND len(list_intersect(tcds_models, ['UC-1 (Twin Bee)'])) > 0
ORDER BY supplement_date DESC, drs_guid 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.

Stol UC-18 registered aircraftRegistry code 8640202

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 = 'UC1' AND m.code NOT IN ('9220102')
  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 = 'UC1' AND m.code NOT IN ('9220102')
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.