# Garlick Helicopters UH-1H - Type: Aircraft model (FAA registry) - Registry code: 3740005 - Manufacturer (registry): GARLICK HELICOPTERS INC - Model: UH-1H - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 1 · Turbo-shaft - Seats: 15 - Weight class: Up to 12,499 lb - Certification: Type certificated - Data sheet: [TCDS H13WE](https://openairdocs.org/tcds/H13WE) (OpenAirDocs) - Holder: Midwest Aerospace TC LLC - Registered aircraft: 7 - Page: https://openairdocs.org/model/garlick-helicopters-uh-1h 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 2024-19-17](https://openairdocs.org/ad/2024-19-17): Rotorcraft flight control · Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N… (STC SR03408CH). Effective Oct 11, 2024 ## Registered aircraft (7) - [N1577](https://openairdocs.org/aircraft/N1577): [Mccarty David M](https://openairdocs.org/faa-owner/MCCARTY%20DAVID%20M), [Baker City, OR](https://openairdocs.org/faa-place/OR/Baker%20City), built 1965, S/N 65-09577 - [N205JG](https://openairdocs.org/aircraft/N205JG): [Frederico Leonard A](https://openairdocs.org/faa-owner/FREDERICO%20LEONARD%20A), [Fresno, CA](https://openairdocs.org/faa-place/CA/Fresno), S/N 67-17686 - [N27FU](https://openairdocs.org/aircraft/N27FU): [Martins Dusters Inc](https://openairdocs.org/faa-owner/MARTINS%20DUSTERS%20INC), [Colusa, CA](https://openairdocs.org/faa-place/CA/Colusa), built 1963, S/N 63-08821 - [N462CC](https://openairdocs.org/aircraft/N462CC): [Hagglund Linda R](https://openairdocs.org/faa-owner/HAGGLUND%20LINDA%20R), [Pendleton, OR](https://openairdocs.org/faa-place/OR/Pendleton), built 1965, S/N 6509666 - [N6257P](https://openairdocs.org/aircraft/N6257P): [Premier Aircraft Services LLC](https://openairdocs.org/faa-owner/PREMIER%20AIRCRAFT%20SERVICES%20LLC), [Bakersfield, CA](https://openairdocs.org/faa-place/CA/Bakersfield), built 1963, S/N 63-08807 - [N6261C](https://openairdocs.org/aircraft/N6261C): [Vi1 LLC](https://openairdocs.org/faa-owner/VI1%20LLC), [Brewster, WA](https://openairdocs.org/faa-place/WA/Brewster), built 1968, S/N 68-15521 - [N98NW](https://openairdocs.org/aircraft/N98NW): [Pope James D](https://openairdocs.org/faa-owner/POPE%20JAMES%20D), [Clarkston, WA](https://openairdocs.org/faa-place/WA/Clarkston), built 1964, S/N 64-13822 ## 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 WPR15LA178](https://openairdocs.org/ntsb/WPR15LA178), May 31, 2015: Garlick Helicopters UH 1H (N462CC), Cove, OR, substantial damage. Probable cause: The failure of the engine-to-transmission drive shaft coupling assembly due to a fatigue fracture of one of its attachment bolts, which resulted in a loss of power to the main rotor. - [NTSB WPR13FA006](https://openairdocs.org/ntsb/WPR13FA006), Oct 7, 2012: Garlick Helicopters UH-1H (N1577), Shady Cove, OR, substantial damage. Probable cause: The separation of the tail rotor gearbox and tail rotor assembly as a result of fatigue to the tail rotor gearbox input quill assembly attachment studs. - [NTSB SEA06WA085](https://openairdocs.org/ntsb/SEA06WA085), Apr 25, 2006: Garlick UH-1H (N126AC), Sarawak, Malaysia, substantial damage - [NTSB SEA04LA043](https://openairdocs.org/ntsb/SEA04LA043), Feb 23, 2004: Garlick UH-1H (N6257P), Liberty, WA, substantial damage. Probable cause: The failure of the tail rotor slider lugs due to fatigue while the helicopter was maneuvering. - [NTSB SEA98FA077](https://openairdocs.org/ntsb/SEA98FA077), May 19, 1998: Garlick UH-1H (N98NW), Hope, ID, substantial damage. Probable cause: Failure of a misaligned main bearing in the engine. Factors include returning a previously unairworthy-tagged engine to service by the operator's maintenance personnel without sufficient information… - [NTSB SEA97TA012](https://openairdocs.org/ntsb/SEA97TA012), Oct 20, 1996: Garlick UH-1H (N98NW), Detroit, OR, substantial damage. Probable cause: the pilot's misjudgement of rotor clearance from the terrain. The proximity of the berm was a related factor. ## FAA accident and incident reports (5) 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 20150531008009A](https://openairdocs.org/incident/20150531008009A), May 31, 2015: Garlick Helicopters Inc UH-1H (N462CC), Cove, OR, Substantial damage. Aircraft was transporting nine, 24 foot logs when the pilot felt a loud vibration and heard a howling sound coming from the transmission area. The logs were… - [Accident 20121007023129A](https://openairdocs.org/incident/20121007023129A), Oct 7, 2012: Garlick Helicopters Inc UH-1H (N1577), Shady Cove, OR, Substantial damage. Pilot was dispatched to drop water on a fire and was returning to base with a bambi bucket and 150FT line still attached. After a 10 minute flight in cruise,… - [Accident 20040223001789A](https://openairdocs.org/incident/20040223001789A), Feb 23, 2004: Garlik UH1H (N6257P), Ellensburg, WA, Substantial damage. (-23) On February 23, 2004 N6257P, a military surplus 1963 garlick UH1-H helicopter crashed at a logging site located 16 miles north of Ellensburg, Washington… - [Accident 19980519010199A](https://openairdocs.org/incident/19980519010199A), May 19, 1998: Bell UH1H (N98NW), Hope, ID, Substantial damage. Squeal compressor stalls and smoke, flames from tail pipe. Lost all power and landed in clearing. Report to follow. - [Accident 19961020047659A](https://openairdocs.org/incident/19961020047659A), Oct 20, 1996: Bell UH1H (N98NW), Detroit, OR, Substantial damage. (-16) This accident was determined to be a public aircraft accident. The investigation was conducted by the us forest service by agreement with the NTSB. There… ## Service difficulty reports (93, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR 2020FA0000296](https://openairdocs.org/sdr/2020FA0000296), Feb 12, 2020: PIN. DISLODGED. PRIMARY CAUSE OF DAMAGE TO ACCESSORY DRIVE, PIN CAME OUT OF SLEEVE BUSHING AND DAMAGED ADJOINING COMPONENTS. ENGINE IS STILL UNDER TEARDOWN AND INSPECTION. - [SDR 2018FA0000537](https://openairdocs.org/sdr/2018FA0000537), Jul 24, 2018: SUPPORT. INFLT SEPARATION. THE SWASHPLATE SUPPORT FAILED AT 1916 HOURS IN SERVICE, PRIOR TO ITS SCHEDULED RETIREMENT LIFE OF 3600 HOURS, FOR UNKNOWN REASONS. TOTAL TIME TRACKING ERRORS WE - [SDR 2018FA0000193](https://openairdocs.org/sdr/2018FA0000193), Jun 20, 2018: QUILL. DISCONNECTED. AIRCRAFT EXPERIENCED A LOSS OF TAIL ROTOR CONTROL DURING FLIGHT REQUIRING THE PILOT TO CONDUCT A HOVERING AUTOROTATION THAT DAMAGED THE LANDING GEAR AND BELLY O - [SDR 2018FA0000086](https://openairdocs.org/sdr/2018FA0000086), Jan 18, 2018: GRIP. CRACKED. LOWER TANG LEADING EDGE HAS A CRACK EXTENDING THRU GRIP TANG TO BLADE BOLT BUSHING. FOUND DURING PREFLIGHT INSPECTION. - [SDR 2017FA0000601](https://openairdocs.org/sdr/2017FA0000601), Jul 25, 2017: LINE. RUPTURED. ONE REPORT DESCRIBING LOSS OF HYDRAULIC FLUID AND SYS PRESSURE. MECHANICS NOTED A HIGH FREQUENCY VIBRATION IN THE HYDRAULIC SYS SPECIFIC TO TUBE WHICH CAN LEAD - [SDR 2017FA0000035](https://openairdocs.org/sdr/2017FA0000035), Jan 27, 2017: BOLT. LOOSE. DURING INSPECTION, FOUND THE ENGINE COMPRESSOR STATOR VANE RETAINING BOLT HANGING OUT OF IT'S RECESSED MOUNT HOLE. ENGINE BLEED BAND WAS PREVENTING BOLT FROM FA - [SDR 2014FA0000320](https://openairdocs.org/sdr/2014FA0000320), May 14, 2014: LONGERON. CRACKED. DURING HOVER, PILOT HEARD A BANG FROM THE REAR OF THE ACFT. PILOT LANDED BACK AT STAGING AREA. DURING INVESTIGATION, DETERMINED THE TAILBOOM JUST AFT OF THE UPP - [SDR 2012FA0000656](https://openairdocs.org/sdr/2012FA0000656), Sep 17, 2012: BLADE. MISINSTALLED. DURING A PHASE 1 INSPECTION, TAIL ROTOR BLADE CLEARANCE FROM VERTICAL STABILIZER WAS INSUFFICIENT AS IT HAD BEEN IMPROPERLY SHIMMED AND INSTALLED ON THE 90 DEGR - [SDR 2012FA0000655](https://openairdocs.org/sdr/2012FA0000655), Sep 17, 2012: SCISSORS. MISINSTALLED. DURING A PHASE 1 INSPECTION, SCISSOR HAD BEEN IMPROPERLY ASSEMBLED AND INSTALLED ON THE SLEEVE CAUSING DAMAGE TO THE SLEEVE. - [SDR 2012FA0000654](https://openairdocs.org/sdr/2012FA0000654), Sep 17, 2012: GRIP. MISINSTALLED. DURING A PHASE 1 INSPECTION, MAIN ROTOR GRIP HAD BEEN IMPROPERLY ASSEMBLED AND INSTALLED ON THE MAIN ROTOR YOKE CAUSING DAMAGE TO THE NEEDLE BEARING AND RACE. - [SDR 2012FA0000308](https://openairdocs.org/sdr/2012FA0000308), Apr 24, 2012: CAP. BROKEN. CAP BROKEN AT BS 238, LBL 14. - [SDR 2011FA0000657](https://openairdocs.org/sdr/2011FA0000657), Oct 3, 2011: BLADE. CRACKED. PILOT NOTED A VERTICAL VIBRATION DURING FLIGHT. UPON VISUAL INSPECTION, IT WAS FOUND THAT MAIN ROTOR BLADE HAD CRACKED 90 INCHES FROM BLADE TIP THROUGH THE T/E - [SDR 2011FA0000518](https://openairdocs.org/sdr/2011FA0000518), Aug 2, 2011: PINION GEAR. FAILED. GEARBOX WAS O/H AS PART OF AN AIRFRAME REFURBISHMENT PROJECT. THE INPUT QUILL SEAL HAD DEVELOPED AN OIL LEAK AND UPON INVESTIGATION IT WAS FOUND THAT THE INPUT - [SDR 2007FA0000812](https://openairdocs.org/sdr/2007FA0000812), Sep 19, 2007: QUILL ASSY. WORN. QUILL INTERNAL SPLINES WORN AND DAMAGED IN QUILL TUBE CONTACT AREA - [SDR 2006FA0001017](https://openairdocs.org/sdr/2006FA0001017), Oct 20, 2006: SUPPORT BRACKET. LOOSE. TAIL BOOM ELEVATOR SUPPORT BRACKET LOOSE. (WORKING RIVETS/SITE OF PREVIOUS REPAIR WITH PULL TYPE RIVETS). - [SDR 2006FA0000530](https://openairdocs.org/sdr/2006FA0000530), May 18, 2006: FITTING. CRACKED. TAIL BOOM ATTACH FITTING CRACKED UPPER LEFT [TAIL BOOM SIDE] - [SDR 2006FA0000529](https://openairdocs.org/sdr/2006FA0000529), May 18, 2006: FITTING. CRACKED. TAIL BOOM ATTACH FITTING CRACKED UPPER LEFT [TAIL BOOM SIDE] - [SDR 2006FA0000528](https://openairdocs.org/sdr/2006FA0000528), May 18, 2006: FITTING. CRACKED. TAIL BOOM ATTACH FITTING CRACKED UPPER LEFT [TAIL BOOM SIDE] - [SDR 2006FA0000231](https://openairdocs.org/sdr/2006FA0000231), Feb 27, 2006: FITTING. FRACTURED. AC LANDED FOR SHUTDOWN AFTER OPERATING FOR APPROX 3 FLIGHT HOURS, AC WAS SHAKING DURING SHUTDOWN. DURING POST FLIGHT INSP IT WAS FOUND THAT UPPER LT MOUNT HARD - [SDR ASI200501A](https://openairdocs.org/sdr/ASI200501A), Jul 15, 2005: PIN. FAILED. DURING 1200 OVERHAUL OUTBOARD FITTING/STRAP PIN P/N 204-012-104-005, S/N DIFS12334 WAS FOUND BROKEN IN HALF. PIN HAD 1085.1 HOURS SINCE NEW. DISCOLORATION AND C - [SDR ASI200501](https://openairdocs.org/sdr/ASI200501), Jul 15, 2005: PIN. FAILED. DURING 1200 OVERHAUL OUTBOARD FITTING/STRAP PIN WAS FOUND BROKEN IN HALF. PIN HAD 1085.1 HOURS SINCE NEW. DISCOLORATION AND CONDITION OF BREAK INDICATES THE BRE - [SDR 2005FA0000785](https://openairdocs.org/sdr/2005FA0000785), May 11, 2005: DRIVE SHAFT. VIBRATION. ( 2005-5-1) PILOT NOTICED VIBRATION AND RUMBLE COMING FROM THE MAIN TRANSMISSION AREA ON TAKEOFF. MECHANIC DID TROUBLE TROUBLESHOOTING PROCEDURES AND NOTICED ON - [SDR 2004FA0000333](https://openairdocs.org/sdr/2004FA0000333), Mar 25, 2004: STRAP. CRACKED. AIRCRAFT WAS EXPERIENCING VIBRATIONS DURING FLIGHT, MAINTENANCE WAS UNABLE TO REMOVE THE VIBRATION THROUGH TRACK AND BALANCE PROCEDURES. THE MAIN ROTOR ASSEMBLY - [SDR AGQA088876](https://openairdocs.org/sdr/AGQA088876), Aug 12, 2003: PUMP. BROKEN. PUMP PRODUCING FLUXUATING OIL PRESSURE - [SDR LS12003F00000](https://openairdocs.org/sdr/LS12003F00000), Jun 6, 2003: SKIN. CRACKED. THE TAILBOOM FIRST 2 UPPER SKINS HAD NUMEROUS CRACKS. UNDER NORMAL OPERATIONS THESE CRACKS WOULD NEVER MATERIALIZE. THE AIRCRAFT HAS BEEN DOING LIFTING WORK. MU - [SDR CDFROTW1](https://openairdocs.org/sdr/CDFROTW1), Apr 25, 2003: BATTERY. LEAKING. AT REMOVAL OF ELT BATTERY AT POSTED REMOVAL DATE IT WAS DISCOVERED THE BATTERY PACK HAD LEAKED AND CORRODED COMPONENTS WITHIN THE CASE. THERE WAS ALSO A CRACK N - [SDR AUS20021231](https://openairdocs.org/sdr/AUS20021231), Oct 15, 2002: FITTING. FAULTY. (AUS) TAILBOOM LH LOWER ATTACHMENT FITTING ON FUSELAGE HAD OVERSIZE HOLES ALLOWING THE HILOK' PINS TO LOOSEN. SUSPECT CAUSED BY POOR REPAIR WORK. - [SDR XVI2002F00000](https://openairdocs.org/sdr/XVI2002F00000), Apr 11, 2002: FRAME. CRACKED. X-RAY INSPECTION REVEALED A CRACK IN THE FRAME FLANGE APPROXIMATELY .1250 INCH LONG CONTAINED BY ADJACENT FASTENER HOLE. THE CRACK IS LOCTED IN THE 3 OCLOCK POS - [SDR LS1R074932](https://openairdocs.org/sdr/LS1R074932), Jul 20, 2001: CYLINDER. WORN. PART IS WORN EXCESSIVELY. - [SDR LS1R074916](https://openairdocs.org/sdr/LS1R074916), Jul 20, 2001: BATTERY. WEAK. PART IS WEAK. - [SDR LS1R072592](https://openairdocs.org/sdr/LS1R072592), Apr 16, 2001: REGULATOR. OUT OF ADJ. REGULATOR UNABLE TO HOLD ADJUSTMENT. - [SDR LS1R072590](https://openairdocs.org/sdr/LS1R072590), Apr 16, 2001: CONTROL PANEL. INOPERATIVE. LIGHTS WILL NOT COME ON. CONTROL PANEL INOPERATIVE. - [SDR LS1R072190](https://openairdocs.org/sdr/LS1R072190), Apr 10, 2001: CABLE DRUM. STRETCHED. CABLE DRUM STRETCHED. - [SDR LS1R071917](https://openairdocs.org/sdr/LS1R071917), Apr 6, 2001: SHAFT. WORN. PART IS WORN EXCESSIVELY. - [SDR LS1R071916](https://openairdocs.org/sdr/LS1R071916), Apr 6, 2001: SHAFT. WORN. PART IS WORN EXCESSIVELY. - [SDR 20010502CW005](https://openairdocs.org/sdr/20010502CW005), Apr 2, 2001: BLADE. CRACKED. A CRACK WAS NOTICED INSIDE DENT AFT OF THE SPAR ON THE TOP OF THE MAIN ROTOR BLADE. REMOVAL OF PAINT DETERMINED THE CRACK TO BE IN EXCESS OF 6 INCHES LONG. THE - [SDR 20001017SH029](https://openairdocs.org/sdr/20001017SH029), Sep 19, 2000: CROSSTUBE. CRACKED. DURING REFUEL, FOUND FORWARD CROSSTUBE AT RIGHT SADDLE CRACKED. POSSIBLE CAUSE, WEAR. (X) - [SDR 20001017SH030](https://openairdocs.org/sdr/20001017SH030), Sep 1, 2000: ANGLE. CRACKED. FOUND ANGLE CRACKED AT LEFT LOWER TAILBOOM MOUNT. POSSIBLE CAUSE IS STRESS TORQUE OF TAILBOOM TO FUSELAGE. (X) - [SDR LS1R066445](https://openairdocs.org/sdr/LS1R066445), Feb 29, 2000: BEARING. ROUGH. BEARING EXTREMELY ROUGH, AND RATCHETY. - [SDR LS1R066421](https://openairdocs.org/sdr/LS1R066421), Feb 23, 2000: BEARING. DAMAGED. BEARING SLINGING GREASE. - [SDR LS1R066420](https://openairdocs.org/sdr/LS1R066420), Feb 23, 2000: BEARING. DAMAGED. BEARING SLINGING GREASE. - [SDR LS1R066419](https://openairdocs.org/sdr/LS1R066419), Feb 23, 2000: BEARING. DAMAGED. BEARING SLINGING GREASE. - [SDR LS1R066011](https://openairdocs.org/sdr/LS1R066011), Feb 17, 2000: AUDIO PANEL. FAILED. ICS BOX DOES NOT TRANSMIT. - [SDR LS1R066010](https://openairdocs.org/sdr/LS1R066010), Feb 17, 2000: AUDIO PANEL. FAILED. ICS BOX DOES NOT TRANSMIT. - [SDR LS1R065962](https://openairdocs.org/sdr/LS1R065962), Feb 15, 2000: LINEAR ACTUATOR. INOP. LINEAR ACTUATOR IS INOPERATIVE. - [SDR LS1R065943](https://openairdocs.org/sdr/LS1R065943), Feb 11, 2000: VOLT REGULATOR. SHORTED. VOLTAGE REGULATOR SHORTED OUT. - [SDR LS1R065941](https://openairdocs.org/sdr/LS1R065941), Feb 11, 2000: CONTROLLER. FAILED. INTERPHONE DOES NOT TRANSMIT. - [SDR LS1R065936](https://openairdocs.org/sdr/LS1R065936), Feb 11, 2000: VOLT REGULATOR. SHORTED. VOLTAGE REGULATOR SHORTED OUT. - [SDR AGQA065942](https://openairdocs.org/sdr/AGQA065942), Feb 11, 2000: VOLT REGULATOR. INOPERATIVE. VOLTAGE REGULATOR INOPERABLE. WILL NOT REGULATE. - [SDR AGQA065935](https://openairdocs.org/sdr/AGQA065935), Feb 11, 2000: VOLT REGULATOR. INOPERATIVE. VOLTAGE REGULATOR INOPERABLE, WILL NOT REGULATE. All 93: https://openairdocs.org/model/garlick-helicopters-uh-1h/reports.md ## STCs that may be installed (OpenAirDocs) (41) 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 SR02796SE](https://openairdocs.org/stc/SR02796SE): Installation of Human External Cargo (HEC) system. Boost Systems LLC - [STC SH8609SW](https://openairdocs.org/stc/SH8609SW): Fabrication of Isolair Eliminator II Model 4600-205 fire fighting system. Isolair Inc - [STC SR01776SE](https://openairdocs.org/stc/SR01776SE): Fabrication, installation, and maintenance of the Isolair Helicopters, Inc., Model 9002 High Cross tubes. Isolair Inc - [STC SR00143DE](https://openairdocs.org/stc/SR00143DE): Installation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003. Midwest Aerospace TC LLC - [STC SR09167RC](https://openairdocs.org/stc/SR09167RC): Replacement of tail rotor control roller chain. Midwest Aerospace TC LLC - [STC SR09176RC](https://openairdocs.org/stc/SR09176RC): Modification of the vertical fin spar. Midwest Aerospace TC LLC - [STC SR09224RC](https://openairdocs.org/stc/SR09224RC): Modification of the lift beam on the Model UH-1H. Midwest Aerospace TC LLC - [STC SR00713SE](https://openairdocs.org/stc/SR00713SE): Installation of Onboard Systems International Cargo Hook Kit. Onboard Systems International - [STC SH5707NM](https://openairdocs.org/stc/SH5707NM): Fabrication of Onboard Systems Model 200-088-03 or 200-088-04 (without Load Weight) or 200-089-03, -04, -05 or -06 (with Load Weight) cargo hook suspension systems. Onboard Systems International - [STC SH5737NM](https://openairdocs.org/stc/SH5737NM): Replacement of Bell magnesium cargo hook bumper and ring Part Nos. 204-072-901-1 or -3, and 204-072-905-3, respectively, with Onboard bumper ring kit No. 210-092-00. Fabrication of Onboard Systems Model 210-092-00 bumper ring kit. Onboard Systems International - [STC SH5758NM](https://openairdocs.org/stc/SH5758NM): Fabrication of the Onboard Model 200-095-00 Multi-Channel Electrical Slip-Ring Kit. Onboard Systems International - [STC SR02475SE](https://openairdocs.org/stc/SR02475SE): Installation of a Tailboom Motion Detection System. Aircraft Structural Repair Inc - [STC SR02492LA](https://openairdocs.org/stc/SR02492LA): Installation of a Helicopter Technology Company main rotor blade assembly. Helicopter Technology Co - [STC SR02641SE](https://openairdocs.org/stc/SR02641SE): Installation of a Service Deck. Northwest Heli-Structures Inc - [STC SR02070SE](https://openairdocs.org/stc/SR02070SE): Fabrication of Dart D205-770-011 Replacement Engine Mount Kit. Dart Aerospace USA Inc - [STC SR00929SE](https://openairdocs.org/stc/SR00929SE): Fabrication of tail boom mounted strakes. BLR Aerospace LLC - [STC SR01039SE](https://openairdocs.org/stc/SR01039SE): Fabrication of tail boom mounted strakes in accordance with Master Drawing List Number BL-UH1H-01, Revision D, dated September 10, 2001, or later Federal Aviation Administration (FAA)-approved revision; and installation of this strake system. BLR Aerospace LLC - [STC SR01470SE](https://openairdocs.org/stc/SR01470SE): Fabrication and Installation of Fast Fin System. BLR Aerospace LLC - [STC SR03408CH](https://openairdocs.org/stc/SR03408CH): Install Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-204-310-101-101 or AA-204-310-101-103. Airwolf Aerospace LLC - [STC SR02413LA](https://openairdocs.org/stc/SR02413LA): Installation of an AKV, Inc Exceedence and Trend Monitoring System kit P/N ETM1000. AKV Inc - [STC ST04270AT](https://openairdocs.org/stc/ST04270AT): Install the VTOL ASSALT V3 Windscreen Laminate Kit. VTOL LLC - [STC SR00767SE](https://openairdocs.org/stc/SR00767SE): Fabrication of Helipro spar replacement system. Vector Aerospace Helicopter Services USA Inc - [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 SR01742NY](https://openairdocs.org/stc/SR01742NY): Installation of extended height landing gear. Dart Aerospace Limited - [STC SR01196LA](https://openairdocs.org/stc/SR01196LA): Installation of Honeywell (Lycoming) T53-L-703 engine to replace Honeywell (Lycoming) T53-L-13/13B/-13BA engine. Responsible ACO is Los Angeles, NM-L. Minuteman Aviation Inc - [STC SR02051LA](https://openairdocs.org/stc/SR02051LA): Installation of a VAn Horn Aviation Tail Rotor Blade. Van Horn Aviation LLC - [STC SR01946SE](https://openairdocs.org/stc/SR01946SE): Installation of the Mechanical Specialties, Model UH606. Mechanical Specialties Inc - [STC SR09257RC](https://openairdocs.org/stc/SR09257RC): Fabrication, modification, and installation of a new vertical fin spar in accordance with Global Helicopter Technology, Inc., Drawing number VTF-030-800, Revision D, dated March 26, 2001, or later FAA approved revision. Global Spar LLC - [STC SR01497AT](https://openairdocs.org/stc/SR01497AT): Manufacture of Windows in accordance with Aeronautical Accessories, Inc. Drawing List Report No. AA-97115, no revision, dated August 20, 1997, or later FAA approved revisions, and installation per Installation Instructions listed in that report. Bell Helicopter Textron Inc - [STC SR01812AT](https://openairdocs.org/stc/SR01812AT): Manufacture of Flitestep in accordance with Aeronautical Accessories, Inc. Drawing List Report No. AA-97166, no revision, dated December 19, 1997, or later FAA approved revisions, and installation per Aeronautical Accessories, Inc. Report AA-97087, Revision B, dated December 18, 1997, or later FAA approved revisions. Bell Helicopter Textron Inc - [STC SR01922AT](https://openairdocs.org/stc/SR01922AT): Manufacture of Locking Door Handle. Bell Helicopter Textron Inc - [STC SR01923AT](https://openairdocs.org/stc/SR01923AT): Manufacture of Air Deflector. Bell Helicopter Textron Inc - [STC SR01924AT](https://openairdocs.org/stc/SR01924AT): Manufacture of Low Skid or High Skid Landing Gear. Bell Helicopter Textron Inc - [STC SR02545AT](https://openairdocs.org/stc/SR02545AT): Manufacture of Fast Rope Kit in accordance with Aeronautical Accessories, Inc. Drawing List Report No. AA-99126-4Rev A dated June 14, 2001, or later FAA approved revision, and installation (structural provisions only) per Aeronautical Accessories, Inc. Report No. AA-98167-Rev E dated May 1, 2001, or later approved revision. Bell Helicopter Textron Inc - [STC SR00103SE](https://openairdocs.org/stc/SR00103SE): Installation of Aviation Development Corporation oil filter. Aviation Development Corporation - [STC SR01298NY](https://openairdocs.org/stc/SR01298NY): Installation of replacement crosstubes P/N D212-664. Dart Aerospace Limited - [STC SR00563NY](https://openairdocs.org/stc/SR00563NY): Installation of Skidtubes and associated saddles. Dart Aerospace Limited - [STC SR00332NY](https://openairdocs.org/stc/SR00332NY): Installation of Avionics Specialties power analyzer and recorder no. SL17009 and SL17061. Aerosonic Corporation - [STC SR01395NY](https://openairdocs.org/stc/SR01395NY): Installation of adjustable engine mount. Dart Aerospace Limited - [STC SR01218AT](https://openairdocs.org/stc/SR01218AT): Manufacture of Flitestep. Aeronautical Accessories, Inc - [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International ## PMA parts (OpenAirDocs) (54, first 50) 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. - [650-430-100-100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181453104620260512112137.0001): MECHANICAL SPECIALTIES, LLC MODEL 650-430-100-100ADVANCED DUEL EXTERNAL CARGO HOOK /ADEC™HOOK SYSTEM. Mechanical Specialties LLC · PMA PQ2180NM · Modification part · Apr 29, 2026 - [200-095-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173266555820220811112040.0001): 8-Channel Slip-Ring Kit. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [200-088-03200-088-04200-089-03200-089-04200-089-05200-089-06](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139313372620220811112036.0001): Suspension System. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [210-092-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134542414020220811112039.0001): Bumper Ring Kit. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022 - [Master Document List (MDL) 204-MDL-001](https://drs.faa.gov/browse/excelExternalWindow/C2E71A85B389A1A6862582F9006A34C9.0001): Tail Rotor Blade. Van Horn Aviation · PMA PQ2454NM · Modification part · Jul 2, 2018 - [Master Document List (MDL) 204-MDL-001](https://drs.faa.gov/browse/excelExternalWindow/8A73137BC15790D78625797D0057501D.0001): Tail Rotor Blade. Van Horn Aviation · PMA PQ2454NM · Modification part · Jan 3, 2012 - [205-D-1002-1](https://drs.faa.gov/browse/excelExternalWindow/F4FA9279F34138F386257785006C20FC.0001): LH Aft Spar Stiffener. BLR Aerospace LLC · PMA PQ1867NM · Modification part · Jul 14, 2010 - [205-D-1002-2](https://drs.faa.gov/browse/excelExternalWindow/62B911B8F35E25B086257785006C2134.0001): RH Aft Spar Stiffener. BLR Aerospace LLC · PMA PQ1867NM · Modification part · Jul 14, 2010 - [205-D-1002-3](https://drs.faa.gov/browse/excelExternalWindow/1FA37087BFF29A5986257785006C2171.0001): Doubler. BLR Aerospace LLC · PMA PQ1867NM · Modification part · Jul 14, 2010 - [205-D-1001-7](https://drs.faa.gov/browse/excelExternalWindow/F4DD4B443CC44BE2862576BE00593679.0001): Tail Fairing. BLR Aerospace LLC · PMA PQ1867NM · Modification part · Dec 6, 2009 - [205-D-1001-1](https://drs.faa.gov/browse/excelExternalWindow/8B2160AF7D31E55C862576BE0059317B.0001): Lower Tail Fairing. BLR Aerospace LLC · PMA PQ1867NM · Modification part · Dec 6, 2009 - [205-D-1001-3](https://drs.faa.gov/browse/excelExternalWindow/71A3637087C3668E862576BE0059319C.0001): Upper Tail Fairing. BLR Aerospace LLC · PMA PQ1867NM · Modification part · Dec 6, 2009 - [BH200101-5](https://drs.faa.gov/browse/excelExternalWindow/28B0BBBE17820D51862576BE00592DC8.0001): Strake Tail Boom. BLR Aerospace LLC · PMA PQ1867NM · Modification part · Dec 6, 2009 - [205-W-1001-1](https://drs.faa.gov/browse/excelExternalWindow/134414B379EA6A88862576BE005931B7.0001): Wire Harness. BLR Aerospace LLC · PMA PQ1867NM · Modification part · Dec 6, 2009 - [205-D-1001-1](https://drs.faa.gov/browse/excelExternalWindow/C8B315B0D4B69DFB8625748D0061BD6F.0001): Upper Tail Fairing. BLR Aerospace LLC · PMA PQ1867NM · Modification part · Apr 16, 2008 - [205-D-1001-7](https://drs.faa.gov/browse/excelExternalWindow/9B81A718054890D28625748D0061C696.0001): Tail Fairing. BLR Aerospace LLC · PMA PQ1867NM · Modification part · Apr 16, 2008 - [205-D-1001-3](https://drs.faa.gov/browse/excelExternalWindow/7F75404A52DF203A8625748D0061BDA1.0001): Lower Tail Fairing. BLR Aerospace LLC · PMA PQ1867NM · Modification part · Apr 16, 2008 - [205-W-1001-1](https://drs.faa.gov/browse/excelExternalWindow/5C3D4FCBC905ED9A8625748D0061BDCC.0001): Wire Harness. BLR Aerospace LLC · PMA PQ1867NM · Modification part · Apr 16, 2008 - [BH200101-7](https://drs.faa.gov/browse/excelExternalWindow/FB9C8837DFA5F4D98525703D00694524.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [205-W-1001-1](https://drs.faa.gov/browse/excelExternalWindow/F621AE426BE45FF68525703D005A1D68.0001): Wire Harness. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-5](https://drs.faa.gov/browse/excelExternalWindow/EB9E800D9E08B0388525703D0069451B.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-6](https://drs.faa.gov/browse/excelExternalWindow/E4471776AE1022388525703D00694520.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-8](https://drs.faa.gov/browse/excelExternalWindow/E32096A86F17E4CA8525703D00694529.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [205-D-1001-3](https://drs.faa.gov/browse/excelExternalWindow/D9B595E6D9B091518525703D005A1D67.0001): Lower Tail Fairing. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-3](https://drs.faa.gov/browse/excelExternalWindow/D958BEA718FEE62E8525703D0069450E.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-1](https://drs.faa.gov/browse/excelExternalWindow/C988BE185A06E3898525703D00694503.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-2](https://drs.faa.gov/browse/excelExternalWindow/C93E3F40C5AE116F8525703D00694509.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-1](https://drs.faa.gov/browse/excelExternalWindow/BE558A87BFA581248525703D00694502.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [205-D-1001-1](https://drs.faa.gov/browse/excelExternalWindow/B1BE7268803C56478525703D005A1D66.0001): Upper Tail Fairing. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-5](https://drs.faa.gov/browse/excelExternalWindow/A77D782AAA64177E8525703D0069451A.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-7](https://drs.faa.gov/browse/excelExternalWindow/A5CFAB732961EE918525703D00694525.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-6](https://drs.faa.gov/browse/excelExternalWindow/9BA33563A0EED8CB8525703D0069451F.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-1](https://drs.faa.gov/browse/excelExternalWindow/95D883A9D235FBC98525703D00694506.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-4](https://drs.faa.gov/browse/excelExternalWindow/7E0915AFB2AC435C8525703D00694515.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-3](https://drs.faa.gov/browse/excelExternalWindow/65BF946EAA82D1368525703D0069450F.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-2](https://drs.faa.gov/browse/excelExternalWindow/6208BBF3B92CD0368525703D00694508.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-8](https://drs.faa.gov/browse/excelExternalWindow/49E5F75F3479B9F08525703D0069452A.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-4](https://drs.faa.gov/browse/excelExternalWindow/4694B0FAEC990B0B8525703D00694514.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-3](https://drs.faa.gov/browse/excelExternalWindow/42662D949C0710798525703D00694512.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-4](https://drs.faa.gov/browse/excelExternalWindow/3752CD6F58389E848525703D00694519.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [BH200101-2](https://drs.faa.gov/browse/excelExternalWindow/2DD9BE8E3046C1A68525703D0069450C.0001): Strake Tail Boom. Boundary Layer Research Inc · Modification part · Oct 20, 2004 - [AA-97134](https://drs.faa.gov/browse/excelExternalWindow/0C664E9568F2958A8525703B00547232.0001): Low or High Skid Landing Gear. Bell Helicopter Textron Inc (formerly Aeronautical Accessories Inc) · Modification part · Jul 22, 2004 - [AA-99126](https://drs.faa.gov/browse/excelExternalWindow/B8387C53195624C88525703B0054735F.0001): Fast Rope Kit. Bell Helicopter Textron Inc (formerly Aeronautical Accessories Inc) · Modification part · May 5, 2003 - [VTF-030-800](https://drs.faa.gov/browse/excelExternalWindow/EB1C2B603DCAD9FB852570420058F0B3.0001): Spar, Forward, Vertical Fin Installation. Global Helicopter Technology Inc · Modification part · Oct 28, 2001 - [VTF-030-800](https://drs.faa.gov/browse/excelExternalWindow/5FE267204057CDAC8625736800522D92.0001): Spar, Forward, Vertical Fin Installation. Global Helicopter Technology Inc · PMA PQ0644SW · Modification part · Apr 30, 2001 - [BH200101-4](https://drs.faa.gov/browse/excelExternalWindow/AAAE129184EE02568525703D006946DA.0001): Strake. Boundary Layer Research Ltd · Modification part · Jun 22, 2000 - [200-088-10](https://drs.faa.gov/browse/excelExternalWindow/97314BC9EF0F069485257046005D6A10.0001): Suspension System. Onboard Systems · Modification part · Dec 8, 1999 - [200-095-00](https://drs.faa.gov/browse/excelExternalWindow/530AC5145E5527B985257046005D6A11.0001): Slip Ring Assembly. Onboard Systems · Modification part · Dec 8, 1999 - [AA-97134](https://drs.faa.gov/browse/excelExternalWindow/F236B8D96E7FE52A8525703B0054722F.0001): Low or High Skid Landing Gear. Bell Helicopter Textron Inc (formerly Aeronautical Accessories Inc) · Modification part · Jul 14, 1999 - [AA-98040](https://drs.faa.gov/browse/excelExternalWindow/AB2C3828AC8D35898525703B0054722C.0001): Locking Door Hinges. Bell Helicopter Textron Inc (formerly Aeronautical Accessories Inc) · Modification part · Jun 17, 1999 All of them: https://openairdocs.org/model/garlick-helicopters-uh-1h/pma.md ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Bell UH-1H](https://openairdocs.org/model/bell-uh-1h): 289 registered aircraft, registry code 1181407 - [Northwest Rotorcraft UH-1H](https://openairdocs.org/model/northwest-rotorcraft-uh-1h): 6 registered aircraft, registry code 9640002 - [Williams Helicopter UH-1H](https://openairdocs.org/model/williams-helicopter-uh-1h): 6 registered aircraft, registry code 9790870 - [Southwest Florida UH-1H](https://openairdocs.org/model/southwest-florida-uh-1h): 3 registered aircraft, registry code 118141C - [Bell Helicopter UH-1H (205)](https://openairdocs.org/model/bell-helicopter-uh-1h-205): 3 registered aircraft, registry code 1181430 - [Richards Heavylift Helo UH-1H](https://openairdocs.org/model/richards-heavylift-helo-uh-1h): 2 registered aircraft, registry code 118142G - [Arrow Falcon Exporters UH-1H](https://openairdocs.org/model/arrow-falcon-exporters-uh-1h): 2 registered aircraft, registry code 1500001 - [Rotorcraft Development UH-1H](https://openairdocs.org/model/rotorcraft-development-uh-1h): 2 registered aircraft, registry code 3741202 - [Western International Avia UH-1H](https://openairdocs.org/model/western-international-avia-uh-1h): 2 registered aircraft, registry code 9640001 - [Precision Helicopters UH-1H](https://openairdocs.org/model/precision-helicopters-uh-1h): 1 registered aircraft, registry code 1181429 - [Lillquist Brien UH-1H](https://openairdocs.org/model/lillquist-brien-uh-1h): 0 registered aircraft, registry code 056244L - [Bell/Southern Aero UH-1H](https://openairdocs.org/model/bell-southern-aero-uh-1h): 0 registered aircraft, registry code 118141E --- 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.