# N198HM: 1962 Garlick Helicopters UH-1B

- Status: Valid registration
- Airframe: [Garlick Helicopters UH-1B](https://openairdocs.org/model/garlick-helicopters-uh-1b) (registry code 3740001, 2 seats)
- Engine: [Lycoming T-53 series](https://openairdocs.org/engine/lycoming-t-53-series) (registry code 41552)
- Data sheets: [TCDS H13WE](https://openairdocs.org/tcds/H13WE) (Midwest Aerospace TC LLC) (OpenAirDocs)
- Serial number: 62-1996
- Year built: 1962
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Restricted, agriculture and pest control, forest
- Airworthiness date: March 11, 1997
- Certificate issued: October 9, 2015
- Expires: October 31, 2028
- Mode S code: A1869E
- Registered owner: [R & R Conner Aviation LLC](https://openairdocs.org/faa-owner/R%20%26%20R%20CONNER%20AVIATION%20LLC)
- Location: [Conner, MT](https://openairdocs.org/faa-place/MT/Conner)
- Owner type: LLC
- Owner's area on the map: 45.8926° N, 114.0884° W: Placed by OpenAirDocs at the center of ZIP code 59827, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=198HM
- Page: https://openairdocs.org/aircraft/N198HM

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Lycoming T-53 model are included.

## ADs that may apply (OpenAirDocs): 18 in force

### Matched by airframe (Garlick Helicopters UH-1B)

- [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

### Matched by engine (Lycoming T-53 series)

- [AD 2022-10-02](https://openairdocs.org/ad/2022-10-02): Engine Controls · Honeywell International T53-L-703, T53-L-13B S/SB, T53-L-13B S/SA and 14 more. Effective Jun 28, 2022
- [AD 2009-15-13](https://openairdocs.org/ad/2009-15-13): Combustion chamber housings (CCHs) · Honeywell International T5313B, T5317A, T5317A-1 and 2 more. Effective Aug 25, 2009
- [AD 2006-11-16](https://openairdocs.org/ad/2006-11-16): Fuel control regulator assemblies · Honeywell International T53-L-703, T53-L-13B/D, T53-L-13B and 8 more. Effective Jul 5, 2006
- [AD 2006-01-05](https://openairdocs.org/ad/2006-01-05): Turboshaft engine · Honeywell International T53-L-703, T53-L-13B/D, T53-L-13B S/SB and 12 more. Effective Feb 16, 2006
- [AD 2002-15-04](https://openairdocs.org/ad/2002-15-04): Compressor impellers · Honeywell International T53-L-703, T53-L-13B/D, T53-L-13B and 4 more. Effective Sep 10, 2002
- [AD 2002-09-09](https://openairdocs.org/ad/2002-09-09): Centrifugal Compressor Impeller · Honeywell International T53-L-703, T53-L-13B/D, T53-L-13B and 10 more. Effective Jun 13, 2002
- [AD 97-21-07 R1](https://openairdocs.org/ad/97-21-07-R1): Accessory Drive Carrier Assembly · Honeywell International T53-L-703, T5313B, T5317A and 1 more. Effective Jul 6, 1998
- [AD 97-07-05](https://openairdocs.org/ad/97-07-05): Accessory Drive Assembly · Honeywell International T53-L-703, T5311A, T5311B and 4 more. Effective Jun 24, 1997
- [AD 96-17-01](https://openairdocs.org/ad/96-17-01): Suspect second stage power turbine disks · Honeywell International T5313B. Effective Sep 9, 1996
- [AD 95-10-04](https://openairdocs.org/ad/95-10-04): Centrifugal Compressor Impeller · Honeywell International T5313B, T5317A, T5317A-1 and 1 more. Effective May 25, 1995
- [AD 77-17-08](https://openairdocs.org/ad/77-17-08): Fuel Regulator P1 Multiplier Lever · Honeywell International T53-L-703, T5307A, T5309A and 7 more. Effective Mar 30, 1978
- [AD 75-22-02](https://openairdocs.org/ad/75-22-02): Secondary Failure N2 Accessory Drive Shaft · Honeywell International T5307A, T5309A, T5309B and 6 more. Effective Oct 29, 1975
- [AD 75-12-12](https://openairdocs.org/ad/75-12-12): Second Stage Gas Producer Cylinder Retaining Bolt · Honeywell International T5313A and T5313B. Effective Jun 18, 1975
- [AD 75-01-05](https://openairdocs.org/ad/75-01-05): Compressor Impeller Assembly Vane · Honeywell International T5313B. Effective Jan 17, 1975
- [AD 74-22-07](https://openairdocs.org/ad/74-22-07): Compressor Rotor Disks · Honeywell International T5313A. Effective Oct 31, 1974
- [AD 74-09-03](https://openairdocs.org/ad/74-09-03): Compressor Rotor Discs · Honeywell International T5309C, T5311A and T5311B. Effective May 2, 1974
- [AD 71-08-06](https://openairdocs.org/ad/71-08-06): Overspeed Pickup Housing Assembly · Honeywell International T5313A and T5313B. Effective Apr 16, 1971

### Historical (superseded or no longer in force)

- [AD 2002-03-01](https://openairdocs.org/ad/2002-03-01) (historical): Reduction Gearbox Assembly · Honeywell International T5311A, T5311B, T5313B and 2 more. Effective Mar 21, 2002
- [AD 98-22-11](https://openairdocs.org/ad/98-22-11) (historical): Fuel Pumps · Honeywell International T5317A-1. Effective Dec 18, 1998
- [AD 87-12-05](https://openairdocs.org/ad/87-12-05) (historical): Gas Producer Turbine and Power Turbine Disks · Honeywell International T5313B. Effective Jul 20, 1987

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N198HM.

## FAA accident and incident reports

None matched to N198HM.

## Service difficulty reports (1)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR H9X2007F00000](https://openairdocs.org/sdr/H9X2007F00000), Dec 1, 2007: HOUSING. DAMAGED. AIRCRAFT WAS RETURNING HOME FROM FLIGHT AND PILOT NOTICED THE PEDALS WERE NOT OPERATING NORMALLY. HE THEN BEGAN CIRCLING THE AIRPORT UNTIL WE DETERMINED THAT TH

## STCs that may be installed (OpenAirDocs) (36)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Garlick Helicopters UH-1B)

- [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 SH3744NM](https://openairdocs.org/stc/SH3744NM): Dual Battery Installation. WSH, LLC
- [STC SR00026DE](https://openairdocs.org/stc/SR00026DE): Installation of tailboom 24 inch plug extension, commercial style main rotor blades, and rotorhead. Midwest Aerospace TC LLC
- [STC SR00073DE](https://openairdocs.org/stc/SR00073DE): Replacement of Lycoming T53-L-13 series powerplant. Midwest Aerospace TC LLC
- [STC SR00119DE](https://openairdocs.org/stc/SR00119DE): Installation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003, and Control Cables. Midwest Aerospace TC LLC
- [STC SR09167RC](https://openairdocs.org/stc/SR09167RC): Replacement of tail rotor control roller chain. Midwest Aerospace TC LLC
- [STC SR09177RC](https://openairdocs.org/stc/SR09177RC): 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 SR02761LA](https://openairdocs.org/stc/SR02761LA): Installation of UH-1H composite main rotor blades on the UH-1B helicopters. Northern X-Treme Helicopters
- [STC SH5690NM](https://openairdocs.org/stc/SH5690NM): Installation of Advanced Technology Aircraft Co. engine barrier filter. WSH, LLC
- [STC SR02492LA](https://openairdocs.org/stc/SR02492LA): Installation of a Helicopter Technology Company main rotor blade assembly. Helicopter Technology Co
- [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 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 SR02051LA](https://openairdocs.org/stc/SR02051LA): Installation of a VAn Horn Aviation Tail Rotor Blade. Van Horn Aviation LLC
- [STC SR09313RC](https://openairdocs.org/stc/SR09313RC): Fabrication, modification, and installation of a new vertical fin spar in accordance with Global Helicopter Technology, Inc., Drawing number VTF-030-802, Revision B, dated April 5, 2001, or later FAA approved revision. Global Spar LLC
- [STC SR09316RC](https://openairdocs.org/stc/SR09316RC): Fabrication, modification, and installation of a new vertical fin spar in accordance with Global Helicopter Technology, Inc., Drawing number VTF-030-801, Revision B, dated April 5, 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 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 SR01218AT](https://openairdocs.org/stc/SR01218AT): Manufacture of Flitestep. Aeronautical Accessories, Inc
- [STC SH2621SO](https://openairdocs.org/stc/SH2621SO): Modification of main rotor blades P/N 204-011-250-5 or P/N 204-011-250-113 for restricted category. Hill Mr. Jamie R
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International

### Approved for the engine (Lycoming T-53 series)

- [STC SE00585AT](https://openairdocs.org/stc/SE00585AT): Installation of Aeronautical Accessories, Inc. PC Safety Valve Kit. Bell Helicopter Textron Inc. Lists T5313B
- [STC SE00028EN](https://openairdocs.org/stc/SE00028EN): Installation of Pratt & Whitney Engine Services Inc. SmartCycle Plus Engine Monitoring System, P/N EMU-K-010-1 on specified T53 engine models. Pratt & Whitney Engine Services Inc. Lists T5309A
- [STC SE00029EN](https://openairdocs.org/stc/SE00029EN): Installation of Pratt & Whitney Engine Services Inc. SmartCycle Plus Engine Monitoring System, P/N EMU-K-010-1 on specific T53 engine models. Pratt & Whitney Engine Services Inc. Lists T5313B
- [STC SE01440NY](https://openairdocs.org/stc/SE01440NY): Conversion of Honeywell engine model T5313B to Honeywell engine model T5317A utilizing Aero Design, Ltd. conversion instructions C1437.02 dtd 4/30/01. Dart Aerospace Limited. Lists T5313B

## Related

- Other Garlick Helicopters UH-1B aircraft: https://openairdocs.org/model/garlick-helicopters-uh-1b/aircraft.md
- The Lycoming T-53 series engine: https://openairdocs.org/engine/lycoming-t-53-series.md

---
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.