# Hiller UH-12L4 - Type: Aircraft model (FAA registry) - Registry code: 4360128 - Manufacturer (registry): HILLER - Model: UH-12L4 - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 1 · Reciprocating - Seats: 4 - Weight class: Up to 12,499 lb - Cruise speed: 80 mph - Certification: Type certificated - Data sheet: [TCDS H1WE](https://openairdocs.org/tcds/H1WE) (OpenAirDocs) - Holder: Siam Hiller Holdings Inc. - Registered aircraft: 3 - Page: https://openairdocs.org/model/hiller-uh-12l4 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 2023-09-09](https://openairdocs.org/ad/2023-09-09): Exhaust Turbine System (Recip) · Aerostar PA-60-600 (Aerostar 600), PA-60-601 (Aerostar 601), PA-60-601P (Aerostar 601P) and 292 more. Effective Jul 17, 2023 - [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023 - [AD 2015-20-51](https://openairdocs.org/ad/2015-20-51): Hiller UH-12, UH-12A, UH-12B and 6 more - [AD 2000-24-21](https://openairdocs.org/ad/2000-24-21): Control System Linkage · Hiller UH-12, UH-12A, UH-12B and 6 more. Effective Jan 10, 2001 - [AD 90-15-01](https://openairdocs.org/ad/90-15-01): Tail Rotor Blade Assemblies · Hiller UH-12L, UH-12L4, UH-12E and 1 more. Effective Mar 7, 1991 - [AD 83-25-02](https://openairdocs.org/ad/83-25-02): Main Rotor Blade Doublers · Allison 250-C20/250-C20B engine (Siam Hiller Holdings STC SH177WE). Effective Dec 29, 1983 - [AD 82-16-07](https://openairdocs.org/ad/82-16-07): Torsional Coupling Assemblies · Hiller UH-12L, UH-12L4, UH-12E and 1 more. Effective Oct 15, 1982 - [AD 82-13-04 R1](https://openairdocs.org/ad/82-13-04-R1): Torsional Couplings · Hiller UH-12L, UH-12L4, UH-12E and 1 more. Effective Sep 13, 1982 - [AD 82-15-02](https://openairdocs.org/ad/82-15-02): Main And Tail Rotors · Hiller UH-12D, UH-12L, UH-12L4 and 2 more. Effective Jul 16, 1982 - [AD 81-18-02](https://openairdocs.org/ad/81-18-02): Tail Rotor Skin Cracks · Hiller UH-12, UH-12A, UH-12B and 6 more. Effective Sep 10, 1981 - [AD 81-17-03](https://openairdocs.org/ad/81-17-03): Main Transmission · Hiller UH-12, UH-12A, UH-12B and 6 more. Effective Aug 24, 1981 - [AD 81-17-01](https://openairdocs.org/ad/81-17-01): Starting Vibrator Assemblies · Bendix Starting Vibrator Assemblies, B-2, B-2A and 49 more. Effective Aug 13, 1981 - [AD 77-24-03](https://openairdocs.org/ad/77-24-03): Fuel Control Valve · Hiller UH-12C, UH-12D, UH-12L and 3 more. Effective Jan 6, 1978 - [AD 75-10-01](https://openairdocs.org/ad/75-10-01): Rotor Drive System · Hiller UH-12D, UH-12L, UH-12L4 and 2 more. Effective May 8, 1975 - [AD 72-13-08](https://openairdocs.org/ad/72-13-08): Main Rotor Blades · Hiller UH-12L, UH-12L4 and UH-12E-L. Effective Oct 19, 1972 - [AD 71-25-08](https://openairdocs.org/ad/71-25-08): Inspect Main Rotor Blades · Hiller UH-12, UH-12A, UH-12B and 6 more. Effective Dec 14, 1971 - [AD 69-13-07](https://openairdocs.org/ad/69-13-07): Collective Yoke Support Brackets · Hiller UH-12D, UH-12L, UH-12L4 and 2 more. Effective Apr 30, 1970 - [AD 69-08-08](https://openairdocs.org/ad/69-08-08): Tail Rotor Yoke · Hiller UH-12D, UH-12L, UH-12L4 and 2 more. Effective Apr 23, 1969 - [AD 66-22-04](https://openairdocs.org/ad/66-22-04): Mercury Clutches · Hiller UH-12D, UH-12L, UH-12L4 and 2 more. Effective Sep 2, 1966 Historical (superseded or no longer in force): - [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021 ## Registered aircraft (3) - [N90457](https://openairdocs.org/aircraft/N90457): [Hiller Aviation Group Inc](https://openairdocs.org/faa-owner/HILLER%20AVIATION%20GROUP%20INC), [Laveen, AZ](https://openairdocs.org/faa-place/AZ/Laveen), S/N 2507 - [N90483](https://openairdocs.org/aircraft/N90483): [Hayes Jack D](https://openairdocs.org/faa-owner/HAYES%20JACK%20D), [Kingman, AZ](https://openairdocs.org/faa-place/AZ/Kingman), built 1966, S/N 2526 - [N90487](https://openairdocs.org/aircraft/N90487): [Hiller Aircraft Corp](https://openairdocs.org/faa-owner/HILLER%20AIRCRAFT%20CORP), [Firebaugh, CA](https://openairdocs.org/faa-place/CA/Firebaugh), built 1966, S/N 2533 ## NTSB investigations (23) 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 FTW94LA210](https://openairdocs.org/ntsb/FTW94LA210), Jun 22, 1994: Hiller UH-12L4 (N90453), West Helena, AR, destroyed. Probable cause: A TOTAL LOSS OF POWER DUE TO A LEAK IN THE MAIN FUEL LINE WHICH OCCURRED AS A RESULT OF AN ELECTRICAL SHORT WHICH BURNED A HOLE IN THE FUEL LINE. FACTORS WERE A FAILURE BY THE PILOT TO PERFORM… - [NTSB LAX84LA294](https://openairdocs.org/ntsb/LAX84LA294), May 10, 1984: Hiller UH-12E (Soloy) (N90461), Delano, CA, substantial damage - [NTSB CHI82FA304](https://openairdocs.org/ntsb/CHI82FA304), Aug 12, 1982: Hiller UH12L4 (N3748Z), Wisconsin Dells, WI, substantial damage - [NTSB LAX82FA245](https://openairdocs.org/ntsb/LAX82FA245), Jul 1, 1982: Hiller UH-12L3 (N86689), Stockton, CA, substantial damage - [NTSB SEA80DYE15](https://openairdocs.org/ntsb/SEA80DYE15), Feb 17, 1980: Hiller Acft UH-12E (N90494), Arlington, WA, substantial damage - [NTSB FTW79FPJ26](https://openairdocs.org/ntsb/FTW79FPJ26), Jun 22, 1979: Hiller UH12L4 (N90453), Elk City, OK, substantial damage - [NTSB CHI78FEI21](https://openairdocs.org/ntsb/CHI78FEI21), Jun 20, 1978: Hiller UH12L4 (N86688), Mentor, OH, substantial damage - [NTSB OAK77DVW25](https://openairdocs.org/ntsb/OAK77DVW25), Jul 1, 1977: Hiller 12SL4 (N90461), Bishop, CA, substantial damage - [NTSB DEN76FTC02](https://openairdocs.org/ntsb/DEN76FTC02), Jul 11, 1975: Hiller Acft UH12L4 (N9727C), Wapiti, WY, destroyed - [NTSB DEN75DTE01](https://openairdocs.org/ntsb/DEN75DTE01), Jul 4, 1974: Hiller Acft UH12L4 (N9727C), Delores, CO, substantial damage - [NTSB OAK73DVG28](https://openairdocs.org/ntsb/OAK73DVG28), Oct 9, 1972: Hiller UH12L4 (N90487), San Andreas, CA, substantial damage - [NTSB LAX72AL018](https://openairdocs.org/ntsb/LAX72AL018), Sep 1, 1971: Hiller Acft UH12L4 (N90486), Grnd Canyon, AZ, destroyed - [NTSB OAK71DVM43](https://openairdocs.org/ntsb/OAK71DVM43), Feb 23, 1971: Hiller UH12L4 (N90459), Morgan Hill, CA, destroyed - [NTSB LAX71FUA31](https://openairdocs.org/ntsb/LAX71FUA31), Dec 8, 1970: Hiller Acft UH12L4 (N86690), Fullerton, CA, substantial damage - [NTSB LAX71DUJ15](https://openairdocs.org/ntsb/LAX71DUJ15), Jul 21, 1970: Hiller Acft SL-4 (N9728C), Williams, AZ, substantial damage - [NTSB OAK70D0153](https://openairdocs.org/ntsb/OAK70D0153), Sep 4, 1969: Hiller Acft UH-12L (N9730C), Mammoth Lks, CA, substantial damage - [NTSB LAX69D0359](https://openairdocs.org/ntsb/LAX69D0359), May 5, 1969: Hiller UH-12L (N86689), Victorville, CA, substantial damage - [NTSB LAX68A0067](https://openairdocs.org/ntsb/LAX68A0067), Jan 15, 1968: Hiller UH12L4 (N90483), Cucamonga, CA, substantial damage - [NTSB DEN67A0071](https://openairdocs.org/ntsb/DEN67A0071), May 23, 1967: Hiller UH-12L (N90457), Fairplay, CO, substantial damage - [NTSB LAX67A0051](https://openairdocs.org/ntsb/LAX67A0051), Nov 17, 1966: Hiller UH12L4 (N90487), Castaic, CA, destroyed - [NTSB DEN67A0010](https://openairdocs.org/ntsb/DEN67A0010), Jul 26, 1966: Hiller UH12L4 (N90488), Georgetown, CO, substantial damage - [NTSB CAN66F0394](https://openairdocs.org/ntsb/CAN66F0394), May 24, 1966: Hiller UH-12L (N90482), Mt.Seymour, Canada, destroyed - [NTSB UNK65X1502](https://openairdocs.org/ntsb/UNK65X1502), Jun 15, 1965: Hiller UH12L4 (N9731C), Stewart B.C., Canada, substantial damage ## FAA accident and incident reports (12) 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. - [Incident 19980515022989I](https://openairdocs.org/incident/19980515022989I), May 15, 1998: Hiller UH12L4 (N90487), Ponce, Puerto Rico, Minor damage. Lost lift after take off possibly due clutch malfunction dropping from 30FT AGL landing hard. - [Accident 19940820022479A](https://openairdocs.org/incident/19940820022479A), Aug 20, 1994: Hiller UH12L4 (N90461), Bakersfield, CA, Destroyed. Unoccupied and running, caught fire, aircraft was on a truck receiving a rinse load. - [Accident 19840510017189A](https://openairdocs.org/incident/19840510017189A), May 10, 1984: Hiller STCUH12 (N90461), Delano, CA, Substantial damage. Engine mounts failed during a spray run. Forced collective up and helicopter landed in the grape arbor. - [Accident 19820812038149A](https://openairdocs.org/incident/19820812038149A), Aug 12, 1982: Hiller UH12L4 (N3748Z), Wisconson Dells, WI, Substantial damage. Needles split during a sightseeing flight. Made hard autorotation landing. Main rotor drive clutch worn out. - [Accident 19820701030559A](https://openairdocs.org/incident/19820701030559A), Jul 1, 1982: Hiller UH12L4 (N86689), Stockton, CA, Substantial damage. Cracked fuel line caused engine power loss during liftoff from a trailer platform. Cracks due to stress corrosion. - [Incident 19811028076449I](https://openairdocs.org/incident/19811028076449I), Oct 28, 1981: Hiller UH12L4 (N86690), Carter, MT, Minor damage. Za skid caught wire on climb out, tired to back off, unable, broke wire, made hard autorotation landing. - [Accident 19800217003809A](https://openairdocs.org/incident/19800217003809A), Feb 17, 1980: Hiller UH12E (N90494), Arlington, WA, Substantial damage. Practicing approachs to a hover, pilot mishandled controls. Helicopter struck ground, bounced and rolled over. - [Accident 19790622018439A](https://openairdocs.org/incident/19790622018439A), Jun 22, 1979: Hiller UH12L4 (N90453), Elk City, OK, Substantial damage. Helicopter RPM began to decay, developed high sink rate. Made hard landing. Found clutch slipping.. - [Accident 19780620027249A](https://openairdocs.org/incident/19780620027249A), Jun 20, 1978: Hiller UH12C (N86688), Mentor, OH, Substantial damage. Rotor RPM gage failed at 300FT AGL. - [Accident 19770701016829A](https://openairdocs.org/incident/19770701016829A), Jul 1, 1977: Hiller UH12L4 (N90461), Bishop, CA, Substantial damage - [Accident 19750711017179A](https://openairdocs.org/incident/19750711017179A), Jul 11, 1975: Hiller UH12L4 (N9727C), Wapiti, WY, Destroyed. Settled with pwr into sling load on 3rd attmpt to lift load. Density alt 14700FT. - [Accident 19740704019219A](https://openairdocs.org/incident/19740704019219A), Jul 4, 1974: Hiller UH12L4 (N9727C), Delores, CO, Substantial damage. Apch made into rising sun. Wires partially hidden. Surveying fire area. ## STCs that may be installed (OpenAirDocs) (29) 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 SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc - [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC - [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies - [STC SR00420NY](https://openairdocs.org/stc/SR00420NY): Installation of Airwolf remote mounted engine oil filter Model AFC-600. Airwolf Filter, Corp - [STC SR02394AK](https://openairdocs.org/stc/SR02394AK): Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system. Seaplanes North LLC - [STC SA00068SE](https://openairdocs.org/stc/SA00068SE): Installation of fuel flow/pressure instruments. (W/TSIO-360-MB1). Electronics International Inc - [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc - [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 SA2687NM](https://openairdocs.org/stc/SA2687NM): Installation of Truboplus/ Electronics Int'l gauges and switches. Aero Manufacturing Inc - [STC SA1626NM PAGE 1](https://openairdocs.org/stc/SA1626NM%20PAGE%201): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International - [STC SA2350NM PAGE 1](https://openairdocs.org/stc/SA2350NM%20PAGE%201): 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 - [STC SA3862NM PAGE 1](https://openairdocs.org/stc/SA3862NM%20PAGE%201): Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories. Electronics International - [STC SH3362NM](https://openairdocs.org/stc/SH3362NM): Installation of a Tail Rotor Blade Protective Coating. Columbia Helicopters Inc - [STC SA2190NM PAGE 1](https://openairdocs.org/stc/SA2190NM%20PAGE%201): Installation of electronics International Digital Volt/Amp Gauges and Accessories. Electronics International - [STC SH618NW](https://openairdocs.org/stc/SH618NW): Installation of the Onboard Weighing System Adapter No. 1500, for use with Eastern Rotorcraft Cargo Hook No 2A15E. Onboard Weighing Systems - [STC SH165NW](https://openairdocs.org/stc/SH165NW): Installation of Model 1620 and 1621 aerial seeders systems. Simplex Manufacturing Co - [STC SH446EA](https://openairdocs.org/stc/SH446EA): Installation of Franklin engine Model 6V-350B in Fairchild Hiller UH-12A helicopter. Franklin Engine Co Inc - [STC SH1-457](https://openairdocs.org/stc/SH1-457): Aircooler Motors 6VS-335B turbo-supercharged engine (derated). Carson Helicopters Inc - [STC SH160AL](https://openairdocs.org/stc/SH160AL): Airborne control survey system. US Dept of Interior - [STC SH32WE](https://openairdocs.org/stc/SH32WE): Fabricate and install jump-step. USDA Forest Service - [STC SH4-1101](https://openairdocs.org/stc/SH4-1101): Aerofilter 30690B with element1A0286. Winslow Aerofilter Corp - [STC SH4-178](https://openairdocs.org/stc/SH4-178): Curved control stick. Nystrom Aviation Inc - [STC SH52WE](https://openairdocs.org/stc/SH52WE): High volume fifty foot spray boom kit. Simplex Manufacturing Co - [STC SH77AL](https://openairdocs.org/stc/SH77AL): Tundra snow shoes. ERA Helicopters Inc - [STC SH9AL](https://openairdocs.org/stc/SH9AL): Airglas tundra pads L-100. Intl Helicopters - [STC SA2350NM](https://openairdocs.org/stc/SA2350NM) (historical): Installation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories. Electronics International ## PMA parts (OpenAirDocs) (27) 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. - [MDL TD 031851](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165624220220250508133547.0001): VA-1A( )AndAccessories. Electronics International Inc · PMA PQ0088NM · Modification part · Apr 10, 2025 - [01-0790906-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189794358220220610124307.0001): LED Landing Light. Whelen Aerospace Technologies · PMA PQ1372CE · Modification part · Jun 6, 2022 - [P/N AFC-K012](https://drs.faa.gov/browse/excelExternalWindow/536908D72A9615E686258567003E468C.0001): Airwolf Remote Oil Filter Kit. Airwolf Filter Corp. · PMA PQ3870SW · Modification part · Oct 8, 2019 - [87-05208-001](https://drs.faa.gov/browse/excelExternalWindow/C4B8A8A2B2422B728625822E007853B6.0001): Assembly, Light, PAR 46 Landing. Astronics Luminescent Systems Inc · PMA PQ0786NE · Replaces 01-0790750-20 · Jan 23, 2018 - [AA-63197-5](https://drs.faa.gov/browse/excelExternalWindow/AAD4F2669292453A862581A100668172.0001): Bracket, Engine Snubber. Airwolf Aerospace LLC (formerly Airwolf Helicopter) · PMA PQ2684CE · Replaces 63197-5 · Aug 30, 2017 - [AA-63192-9](https://drs.faa.gov/browse/excelExternalWindow/7E6B5B41B61A0594862581A10066809A.0001): Snubber Assy, Engine. Airwolf Aerospace LLC (formerly Airwolf Helicopter) · PMA PQ2684CE · Replaces 63192-9 · Aug 30, 2017 - [AA-31319-3](https://drs.faa.gov/browse/excelExternalWindow/7566504FEA59D2C3862581A100667F7E.0001): Tube, Collective Control. Airwolf Aerospace LLC (formerly Airwolf Helicopter) · PMA PQ2684CE · Replaces 31319-3 · Aug 30, 2017 - [AA-31318](https://drs.faa.gov/browse/excelExternalWindow/64CE2A06A997D66C862581A100667EFC.0001): Bellcrank Assembly, Collective Control. Airwolf Aerospace LLC (formerly Airwolf Helicopter) · PMA PQ2684CE · Replaces 31318 · Aug 30, 2017 - [AA-63192-11](https://drs.faa.gov/browse/excelExternalWindow/4CC34532A29F1FED862581A1006680E0.0001): Snubber Assy, Engine. Airwolf Aerospace LLC (formerly Airwolf Helicopter) · PMA PQ2684CE · Replaces 63192-11 · Aug 30, 2017 - [87-05207-002](https://drs.faa.gov/browse/excelExternalWindow/4BE4BA39295AB01E862581760058C64D.0001): Assembly, Light, PAR 36 Taxi. Astronics Luminescent Systems Inc · PMA PQ0786NE · Replaces 01-0771833-25 · Aug 1, 2017 - [87-05207-001](https://drs.faa.gov/browse/excelExternalWindow/4ACD6BDF5990D9C7862581760058C571.0001): Assembly, Light, PAR 36 Landing. Astronics Luminescent Systems Inc · PMA PQ0786NE · Replaces 01-0771833-20 · Aug 1, 2017 - [01-0790750-20](https://drs.faa.gov/browse/excelExternalWindow/DF585F07385239BF86257F000060B609.0001): LED Landing Light. Whelen Engineering Co Inc · PMA PQ0610NE · Modification part · Oct 28, 2015 - [01-0771833-20](https://drs.faa.gov/browse/excelExternalWindow/B3ED2FAAA3DCF33C86257F000060B51A.0001): LED Landing Light. Whelen Engineering Co Inc · PMA PQ0610NE · Modification part · Oct 28, 2015 - [01-0790750-10](https://drs.faa.gov/browse/excelExternalWindow/9D6AFCBD1348AD6186257F000060B5B8.0001): LED Landing Light. Whelen Engineering Co Inc · PMA PQ0610NE · Modification part · Oct 28, 2015 - [01-0771833-15](https://drs.faa.gov/browse/excelExternalWindow/687551E9968AF90886257F000060B4C0.0001): LED Taxi Light. Whelen Engineering Co Inc · PMA PQ0610NE · Modification part · Oct 28, 2015 - [01-0771833-25](https://drs.faa.gov/browse/excelExternalWindow/368AB879B374E71086257F000060B56A.0001): LED Taxi Light. Whelen Engineering Co Inc · PMA PQ0610NE · Modification part · Oct 28, 2015 - [01-0771833-10](https://drs.faa.gov/browse/excelExternalWindow/0973C66BC006449A86257F000060B467.0001): LED Landing Light. Whelen Engineering Co Inc · PMA PQ0610NE · Modification part · Oct 28, 2015 - [01-0771424-25](https://drs.faa.gov/browse/excelExternalWindow/DFC8C9A036093F40862579EC00539710.0001): LED PAR36 Taxi Light. Whelen Engineering Co Inc · PMA PQ0610NE · Replaces 01-0771424-25 · Apr 10, 2012 - [01-0771424-20](https://drs.faa.gov/browse/excelExternalWindow/BD84CA0936FC287C862579EC0053969B.0001): LED PAR36 Landing Light. Whelen Engineering Co Inc · PMA PQ0610NE · Replaces 01-0771424-20 · Apr 10, 2012 - [01-0771424-10](https://drs.faa.gov/browse/excelExternalWindow/3A8EEF8AE12997AF862579EC0053960D.0001): LED PAR36 Landing Light. Whelen Engineering Co Inc · PMA PQ0610NE · Replaces 01-0771424-10 · Apr 10, 2012 - [01-0771424-15](https://drs.faa.gov/browse/excelExternalWindow/2788755BBBD7B122862579EC00539658.0001): LED PAR36 Taxi Light. Whelen Engineering Co Inc · PMA PQ0610NE · Replaces 01-0771424-15 · Apr 10, 2012 - [Model 600 WP](https://drs.faa.gov/browse/excelExternalWindow/5682F8155CD6FB10852570490054D746.0001): Air/Oil Separator. M-20 Oil Separators LLC · Modification part · May 12, 2003 - [2550](https://drs.faa.gov/browse/excelExternalWindow/F8349F7C66F0C00A85257046005D6B19.0001): Weigh System. Onboard Systems · Modification part · Dec 8, 1999 - [AFC-K012](https://drs.faa.gov/browse/excelExternalWindow/F0788426697F5B678525703C00694BC9.0001): Oil Filter Kit. Airwolf Filter Corp · Modification part · Jun 3, 1996 - [B60-80 6837](https://drs.faa.gov/browse/excelExternalWindow/CF65B235BA0BBF548525703E006B976B.0001): Elastomeric Coupling Assembly. SKF Aerospace Sealing Solutions (previously C R Industries 1/06) · Replaces Rogerson Hiller 21075-3 · Feb 27, 1994 - [1500](https://drs.faa.gov/browse/excelExternalWindow/469CDA8EDAA795B685257046005B7222.0001): Onboard Weighing System. Onboard Systems · Modification part · Aug 13, 1992 - [2550](https://drs.faa.gov/browse/excelExternalWindow/F66CE01E1BD664A985257046005D6B18.0001): Model 2550 Weighing System. Onboard Systems · Modification part · May 23, 1991 ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Rogerson Hiller UH-12L4](https://openairdocs.org/model/rogerson-hiller-uh-12l4): 0 registered aircraft, registry code 4367003 --- 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.