# United Consultants UC-1 - Type: Aircraft model (FAA registry) - Registry code: 9220102 - Manufacturer (registry): UNITED CONSULTANTS - Model: UC-1 - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 2 · Reciprocating - Seats: 4 - Weight class: Up to 12,499 lb - Cruise speed: 101 mph - Certification: Not type certificated - Data sheet: [TCDS A6EA](https://openairdocs.org/tcds/A6EA) (OpenAirDocs) - Holder: Sky Enterprises Inc. - Registered aircraft: 1 - Page: https://openairdocs.org/model/united-consultants-uc-1 Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2022-03-15](https://openairdocs.org/ad/2022-03-15): Fuel Quantity Indicator · Garmin G3X Touch Electronic Flight Instrument System (STC SA01899WI or SA02658SE). Effective Mar 21, 2022 ## Registered aircraft (1) - [N87589](https://openairdocs.org/aircraft/N87589): [Johanson Jason](https://openairdocs.org/faa-owner/JOHANSON%20JASON), [Groveland, CA](https://openairdocs.org/faa-place/CA/Groveland), S/N UC1-R158 ## NTSB investigations (6) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB GAA22WA231](https://openairdocs.org/ntsb/GAA22WA231), Jul 18, 2022: United Consultants UC-1 (N747HJ), Lake Siljan, Sweden, 2 fatal - [NTSB SEA95FA012](https://openairdocs.org/ntsb/SEA95FA012), Oct 27, 1994: United Consultant UC-1 (N9501U), Pinedale, WY, substantial damage, 2 fatal. Probable cause: AIRCRAFT CONTROL WAS NOT MAINTAINED. FACTORS TO THE ACCIDENT WERE: ROUGH WATER AND DOWNDRAFTS. - [NTSB LAX77FUM25](https://openairdocs.org/ntsb/LAX77FUM25), Apr 15, 1977: United Cons UC-1 (N87589), San Diego, CA, substantial damage - [NTSB ANC74DAG32](https://openairdocs.org/ntsb/ANC74DAG32), Aug 29, 1973: Stol Acft UC-1 (N9501U), Mcgrath, AK, substantial damage - [NTSB ANC73DAG16](https://openairdocs.org/ntsb/ANC73DAG16), Jul 28, 1972: United Cons UC-1 (N77PP), Larsen Bay, AK, destroyed - [NTSB ANC71FAG11](https://openairdocs.org/ntsb/ANC71FAG11), Jul 26, 1970: United Cons UC-1 (N9501U), Anchorage, AK, substantial damage ## FAA accident and incident reports (4) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 19941027045339A](https://openairdocs.org/incident/19941027045339A), Oct 27, 1994: Stolac UC1 (N9501U), Pinedale, WY, Substantial damage, 2 fatal. Backfire and explosion heard. Found debris in rough water lake. Student flying in severe turbulence rough water. - [Incident 19780321009489I](https://openairdocs.org/incident/19780321009489I), Mar 21, 1978: Stolac UC1 (N9501U), Kenai, AK, Minor damage. Uncontrollable pitching & vibration after takeoff. Elevator jack screw bound up with grease and dirt. - [Accident 19770415008669A](https://openairdocs.org/incident/19770415008669A), Apr 15, 1977: Stolac UC1 (N87589), San Diego, CA, Destroyed. Boost pump quit. Plt feath prop,but left gr & flaps down. Un maintain flt. - [Accident 19730829028989A](https://openairdocs.org/incident/19730829028989A), Aug 29, 1973: Stolac UC1 (N9501U), Mcgrath, AK, Substantial damage. Pilot not rated for sea operations. ## Service difficulty reports (1) As reported by operators and repair stations, by the model named in the report. - [SDR 2005FA0000634](https://openairdocs.org/sdr/2005FA0000634), Feb 25, 2005: CLAMP. CRACKED. LT ENGINE IB EXHAUST TAILPIPE CRACKED, EXPELLING HEAT INTO ENGINE COMPARTMENT, BURNING PAINT ON COWLING. PART FAILURE OCCURRED BECAUSE OF BROKEN SUPPORT CLAMP, ## STCs that may be installed (OpenAirDocs) (56, first 50) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC SA02571SE](https://openairdocs.org/stc/SA02571SE): Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display). Garmin International Inc - [STC SA12406WI](https://openairdocs.org/stc/SA12406WI): Installation of a Garmin AXIS Flight Display System. Garmin International Inc - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA02636SE](https://openairdocs.org/stc/SA02636SE): Installation of Garmin GPS 175 Navigation System and GNX 375 Navigation System with ADS-B In/Out Transponder. Garmin International Inc - [STC SA02019SE-D](https://openairdocs.org/stc/SA02019SE-D): Installation of Garmin Model GTN 625/635/650; 725/750 Navigation System. Garmin International Inc - [STC SA02738CH](https://openairdocs.org/stc/SA02738CH): Installation of L-3 Communications Avionics Systems. Acron Aviation Inc - [STC SA04046CH PAGE 2](https://openairdocs.org/stc/SA04046CH%20PAGE%202): Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500). Acron Aviation Inc - [STC SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC - [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc - [STC SA02019WI](https://openairdocs.org/stc/SA02019WI): Installation of the Trig Avionics TX56, TX56A, TX57, or TX57A VHF Nav-Com Radio. Peregrine - [STC SA00756DE](https://openairdocs.org/stc/SA00756DE): Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out Equipment using a Trig Avionics TT22 Transponder and an approved Global Positioning System (GPS) Position Sensor. Peregrine - [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc - [STC SA02444AK](https://openairdocs.org/stc/SA02444AK): Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed. ADS-B Technologies LLC - [STC SA01818WI](https://openairdocs.org/stc/SA01818WI): Installation of Garmin G5 Electronic Flight Instrument. Garmin International Inc - [STC SA11174SC PAGE 2](https://openairdocs.org/stc/SA11174SC%20PAGE%202): Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems. Honeywell International Inc (Bendix King) - [STC SA00401BO](https://openairdocs.org/stc/SA00401BO): Installation of a SkyTrax100B UAT receiver. Avidyne Corporation - [STC SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc - [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation - [STC SA01714WI](https://openairdocs.org/stc/SA01714WI): Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R with ADS-B Out functionality in select airplanes installed with G950/G1000 systems. Garmin International Inc - [STC SA00744DE](https://openairdocs.org/stc/SA00744DE): Installation of the Automatic Dependent Surveillance Broadcast (ADS-B) Out Equipment using a Trig Avionics TT31 Transponder and an approved position sensor. Peregrine - [STC SA00765DE](https://openairdocs.org/stc/SA00765DE): Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensor. Peregrine - [STC SA02153LA-D PAGE 2](https://openairdocs.org/stc/SA02153LA-D%20PAGE%202): Installation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) System. Garmin International Inc - [STC SA01835WI](https://openairdocs.org/stc/SA01835WI): Installation of Trig Avionics TY-96 or TY-97 VHF Communications Radio. Peregrine - [STC SA00024NY](https://openairdocs.org/stc/SA00024NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K007 on single or multi-engine fixed wing light aircraft incorporating Lycoming reciprocating engines of 450 horsepower or less. Airwolf Filter Corporation - [STC SA02428SE](https://openairdocs.org/stc/SA02428SE): Installation of an Air Stream Switch for an electric time recording device on non-pressurized aircraft. Henry F Rogers/David E Polley - [STC SA00343BO](https://openairdocs.org/stc/SA00343BO): Installation of a single configuration or a dual configuration Avidyne Corporation Integrated Flight Display, Model IFD540 loaded with Release 10.0 software (or later FAA approved release). Avidyne Corporation - [STC SA00352BO PAGE 2](https://openairdocs.org/stc/SA00352BO%20PAGE%202): Installation of an Avidyne Corporation Mode A/C/S Transponder with ADS-B Out capability, Model AXP340 loaded with Version 3.13 software (or later FAA approved version),. Avidyne Corporation - [STC SA02119SE PAGE 2](https://openairdocs.org/stc/SA02119SE%20PAGE%202): Installation of Garmin GDL 88 ADS-B UAT Transceiver System. Garmin International Inc - [STC SA02442AK PAGE 2](https://openairdocs.org/stc/SA02442AK%20PAGE%202): Approval of the L-3 Communications NGT 2000/2500 ADS-B system. ADS-B Technologies, LLC - [STC SA02930NY](https://openairdocs.org/stc/SA02930NY): Installation of Insight Instrument Corporation Graphic Engine Monitor (GEM 610C) models G3, G2, and G1 and 1200C model G4 as primary Cylinder Head Temperature (CHT), Exhaust Gas Temperature (EGT), and Turbine Inlet Temperature (TIT) Instruments. Insight Instrument Corporation - [STC SA02283SE PAGE 2](https://openairdocs.org/stc/SA02283SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P. Electronics International Inc - [STC SA02402SE PAGE 2](https://openairdocs.org/stc/SA02402SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C. Electronics International Inc - [STC SA02121SE](https://openairdocs.org/stc/SA02121SE): Installation of Garmin GTS 825 (TAS) or GTS 855 (TCAS I) Traffic System. Garmin International Inc - [STC SA02015SE-D](https://openairdocs.org/stc/SA02015SE-D): Installation of Garmin G500 Primary Flight Display (PFD) and Multifunction Display (MFD) System. Garmin International Inc - [STC SA02018SE-D](https://openairdocs.org/stc/SA02018SE-D): Provisions installation of Garmin GPS/XM Antennas in accordance with FAA Approved Model List (AML) SA02018SE-D, dated January 4, 2011, or later FAA approved revision, and FAA Approved GPS/XM Antenna STC Master Drawing List, Document No.: 005-00638-01, Revision 1 , approved on January 4, 2011, or later FAA approved revision. Garmin International Inc - [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc - [STC SA01988SE](https://openairdocs.org/stc/SA01988SE): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) MVP-50P. Electronics International Inc - [STC SA563CH](https://openairdocs.org/stc/SA563CH): Authorizes installation of engines equipped w/Unison Limited Authority Spark Advance Regulator (LASAR) ignition system w/Cylinder Head Temp. (CHT) monitoring capability on airframes. engines. Champion Aerospace LLC - [STC SA593CH](https://openairdocs.org/stc/SA593CH): Install Champion SlickSTART magneto booster system. Champion Aerospace LLC - [STC SA02033AT](https://openairdocs.org/stc/SA02033AT): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line. M-20 Oil Separators LLC - [STC SA00680SE](https://openairdocs.org/stc/SA00680SE): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer. Electronics International - [STC SA02520AT](https://openairdocs.org/stc/SA02520AT): Installation of M-20 Oil Separator, model 600-WP. M-20 Oil Separators LLC - [STC SA157NE](https://openairdocs.org/stc/SA157NE): Installation of Graphic Engine Monitor System Model GEM-602 S/N 403 and GEM-603 S/N001126and subsequent. Insight Instrument Corp - [STC SA3205SO](https://openairdocs.org/stc/SA3205SO): Installation of Appalachian stainless steel brake discs. Aviation Products, Inc - [STC SA00462AT](https://openairdocs.org/stc/SA00462AT): Replacement of Appalachian stainless steel brake discs P/N 75-23 with Appalachian steel brake disk part number AA-47. Aviation Products, Inc - [STC SA1626NM PAGE 2](https://openairdocs.org/stc/SA1626NM%20PAGE%202): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International - [STC SA5159NM](https://openairdocs.org/stc/SA5159NM): Installation of chip detector system. Northwest Aircraft Inc - [STC SA300CE](https://openairdocs.org/stc/SA300CE): Installation of Woodward propeller governors on single and twin engine aircraft. (PA-31-325 modified per Colemill STC SA 970SO). Woodward Governor Company - [STC SA2350NM PAGE 2](https://openairdocs.org/stc/SA2350NM%20PAGE%202): Installation of Electronics International Inc digital carburetor/outside air temperature gauges. Electronics International - [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International All 56: https://openairdocs.org/model/united-consultants-uc-1/stcs.md ## PMA parts (OpenAirDocs) (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-R](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144884034720260806152431.0001): Fuel Quantity Indication Placard. Swift Fuels, LLC · PMA PQ04423CE · Modification part · Jul 20, 2026 - [S1069](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120333241220260806152338.0001): 100R Fuel Placard. Swift Fuels, LLC · PMA PQ04423CE · Modification part · Jul 20, 2026 - [066-106](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162705614020260728184417.0001): Brake Lining. Game Aerospace, LLC · PMA PQ00052CB · Replaces Cleveland Wheels and Brakes P/N… · Jun 9, 2026 - [066-001](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146738906120260723131535.0001): Rivet. Game Aerospace, LLC · PMA PQ00052CB · Replaces Cleveland Wheels and Brakes P/N… · Jun 9, 2026 - [RAP164-00700](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159171524520260722154712.0001): Brake Disc. Rapco Inc. · PMA PQ2101CE · Replaces 164-00700 · Jun 3, 2026 - [MDL TD 031851](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID158923733420250508133544.0001): VA-1A( )AndAccessories. Electronics International Inc · PMA PQ0088NM · Modification part · Apr 10, 2025 - [APS105-00200](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165267298920221020170434.0001): Rivet. Aviation Products Systems Inc · PMA PQ3830CE · Replaces 105-00200 · Aug 10, 2022 - [700-00190-100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID888154426520210921142610.0001): SkyTrax 100B/200 ADS-B Receiver. Avidyne Corporation · PMA PQ4035CE · Replaces ModificationPart · Jul 28, 2021 - [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID369765820210702175242012.0001): Aspen Avionics · PMA PQ03868SW · Jan 20, 2021 - [L21511](https://drs.faa.gov/browse/excelExternalWindow/A7FBE06F7573089386257FC5006D9EBC.0001): CUP. Timken Corporation · PMA PQ4105CE · Replaces 214-00500 · May 24, 2016 - [L21549](https://drs.faa.gov/browse/excelExternalWindow/672910E19501971286257FC5006D9EBD.0001): CONE. Timken Corporation · PMA PQ4105CE · Replaces 214-00600 · May 24, 2016 - [L21511](https://drs.faa.gov/browse/excelExternalWindow/BF52F396C0345AB486257D2A005745ED.0001): CUP. Timken Corporation · PMA PQ4105CE · Replaces 214-00500 · Jun 29, 2014 - [L21549](https://drs.faa.gov/browse/excelExternalWindow/79E59EAD3594EED186257D2A005745EE.0001): CONE. Timken Corporation · PMA PQ4105CE · Replaces 214-00600 · Jun 29, 2014 - [RA105-00200](https://drs.faa.gov/browse/excelExternalWindow/B5932B14FAF5319086257B1A00709093.0001): Rivet. Rapco Inc · PMA PQ2101CE · Replaces Cleveland Wheels & Brakes P/N… · Jul 20, 2012 - [RA066-10600-8K](https://drs.faa.gov/browse/excelExternalWindow/1EFECFE0E6D1E43F86257B1A00708D55.0001): Brake Lining Kit. Rapco Inc · PMA PQ2101CE · Replaces Rapco, Inc. P/N RA66-106-8K… · Jul 20, 2012 - [RA066-10600](https://drs.faa.gov/browse/excelExternalWindow/000E73ACE1EBEAC186257B1A007089FB.0001): Brake Lining. Rapco Inc · PMA PQ2101CE · Replaces Cleveland Wheels & Brakes P/N… · Jul 20, 2012 - [A210899](https://drs.faa.gov/browse/excelExternalWindow/EEEA0E8A996DDA7D862572F10054CC25.0001): Governor - CSSA. ONTIC Engineering & Manufacturing Inc · PMA PQ1398NM · Replaces A210899 · May 14, 2007 - [A210799](https://drs.faa.gov/browse/excelExternalWindow/E8D2630E57724B17862572F10054C93C.0001): Governor - CSSA. ONTIC Engineering & Manufacturing Inc · PMA PQ1398NM · Replaces A210799 · May 14, 2007 - [A210839](https://drs.faa.gov/browse/excelExternalWindow/5DA8B0B64F02552B862572F10054CAB0.0001): Governor - CSSA. ONTIC Engineering & Manufacturing Inc · PMA PQ1398NM · Replaces A210839 · May 14, 2007 - [210906](https://drs.faa.gov/browse/excelExternalWindow/199882104A7D174F862572F10054CC75.0001): Governor - CSSA. ONTIC Engineering & Manufacturing Inc · PMA PQ1398NM · Replaces 210906 · May 14, 2007 - [Model 600 WP](https://drs.faa.gov/browse/excelExternalWindow/5682F8155CD6FB10852570490054D746.0001): Air/Oil Separator. M-20 Oil Separators LLC · Modification part · May 12, 2003 - [APS66-10600](https://drs.faa.gov/browse/excelExternalWindow/9D01F1C072009E8A8525703C006B15C2.0001): Brake Lining. Aviation Products Systems Inc · Replaces AP66-106, SB66-10600, ES-66-62-FM… · May 7, 2002 - [APS105-0200](https://drs.faa.gov/browse/excelExternalWindow/412BF79D411D4C418525703C006B1579.0001): Rivet. Aviation Products Systems Inc · Replaces AP105-2, SB105-0200, ES-105-2, 0105-0200 · May 7, 2002 - [13889](https://drs.faa.gov/browse/excelExternalWindow/514654086521F68C8525704C005B123E.0001): Cone. Timken Company The · Replaces 13889 · Nov 4, 1999 - [13836](https://drs.faa.gov/browse/excelExternalWindow/29F83AE6C3556E598525704C005B123D.0001): Cup. Timken Company The · Replaces 13836 · Nov 4, 1999 - [L21549](https://drs.faa.gov/browse/excelExternalWindow/B9987777E18372848525704D0051E278.0001): Cone. Timken Company The · Replaces L21549 · Oct 24, 1999 - [L21511](https://drs.faa.gov/browse/excelExternalWindow/056B4AD6EE335D678525704D0051E277.0001): Cup. Timken Company The · Replaces L21511 · Oct 24, 1999 - [SS-1001](https://drs.faa.gov/browse/excelExternalWindow/C7E32203B0D0EC7E8525704C00570B73.0001): Slick START TM Installation. Slick Aircraft Products, Division of Unison Ind · Modification part · Dec 2, 1997 - [K-1001](https://drs.faa.gov/browse/excelExternalWindow/79670B8722A2299A8525704C00516146.0001): Slick START TM Installation. Slick Aircraft Products, Division of Unison Ind · Modification part · Dec 2, 1997 - [RA164-00700](https://drs.faa.gov/browse/excelExternalWindow/479D5B96A0A2CCE08525704B004F4396.0001): Brake Disc. Rapco Inc · Replaces Cleveland Wheels & Brakes 164-00700 · Oct 30, 1997 - [SB164-00700](https://drs.faa.gov/browse/excelExternalWindow/9DFEF35ABDB225668525703C006CC63A.0001): Carbon Steel Brake Disc. Aviation Products Inc · Replaces Cleveland 164-47, 164-00700, 164-7… · Oct 31, 1996 - [SB164-04700](https://drs.faa.gov/browse/excelExternalWindow/660F27B6EEEF77748525703C006CC64A.0001): Carbon Steel Brake Disc. Aviation Products Inc · Replaces Cleveland 164-47, 164-00700, 164-7… · Oct 31, 1996 - [75-47](https://drs.faa.gov/browse/excelExternalWindow/8374534ADCB5D0D18525703C0061AE2C.0001): Stainless Steel Brake Disks. Appalachian Accessories · Modification part · Jan 19, 1993 ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Stol UC-1](https://openairdocs.org/model/stol-uc-1): 8 registered aircraft, registry code 8640202 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.