# N185CH: 1963 Columbia Helicopters 107-II

- Status: Valid registration
- Airframe: [Columbia Helicopters 107-II](https://openairdocs.org/model/columbia-helicopters-107-ii) (registry code 2340090, 28 seats)
- Engine: [GE CT58-140-2](https://openairdocs.org/engine/ge-ct58-140-2) (registry code 30129)
- Data sheets: [TCDS 1H16](https://openairdocs.org/tcds/1H16) (Columbia Helicopters Inc.), [TCDS 1E3](https://openairdocs.org/tcds/1E3) (General Electric Company) (OpenAirDocs)
- Serial number: 104
- Year built: 1963
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Standard, transport
- Airworthiness date: August 20, 2024
- Certificate issued: June 9, 2023
- Expires: June 30, 2030
- Mode S code: A15379
- Registered owner: [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE)
- Location: [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City)
- Owner type: Corporation
- Owner's area on the map: 40.7558° N, 111.8843° W: Placed by OpenAirDocs at the center of ZIP code 84111, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=185CH
- Page: https://openairdocs.org/aircraft/N185CH

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.

## ADs that may apply (OpenAirDocs): 33 in force

### Matched by airframe (Columbia Helicopters 107-II)

- [AD 2025-07-01](https://openairdocs.org/ad/2025-07-01): Air Data Computer · Synthetic Vision Electronic Flight Information System (Arrow STC SR09595RC or ST01523WI). Effective May 15, 2025
- [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 2012-14-10](https://openairdocs.org/ad/2012-14-10): Main Rotor Mast/Swashplate · Columbia Helicopters 107-II, KV107-II and KV107-IIA. Effective Aug 7, 2012
- [AD 2005-24-05](https://openairdocs.org/ad/2005-24-05): Quill shaft · Columbia Helicopters 107-II. Effective Dec 8, 2005
- [AD 88-14-03](https://openairdocs.org/ad/88-14-03): Main Rotor Hubs · Columbia Helicopters 107-II, KV107-II and KV107-IIA. Effective Jul 5, 1988
- [AD 88-12-09](https://openairdocs.org/ad/88-12-09): Main Rotor Shaft · Columbia Helicopters 107-II and KV107-IIA. Effective Jun 2, 1988
- [AD 87-11-05 R4](https://openairdocs.org/ad/87-11-05-R4): Components Fatigue Failure · Columbia Helicopters 107-II, KV107-II and KV107-IIA. Effective May 14, 1987
- [AD 83-07-06](https://openairdocs.org/ad/83-07-06): Synchronizing Shaft · Columbia Helicopters 107-II, KV107-II and KV107-IIA. Effective Apr 4, 1983
- [AD 80-25-08](https://openairdocs.org/ad/80-25-08): Tension-Torsion Strap Assemblies · Columbia Helicopters 107-II. Effective Dec 12, 1980
- [AD 64-21-06 R2](https://openairdocs.org/ad/64-21-06-R2): Sockets & Rotor Housings · Columbia Helicopters 107-II. Effective Jul 7, 1980
- [AD 80-11-08](https://openairdocs.org/ad/80-11-08): Cyclic Stick Boots · Columbia Helicopters 107-II. Effective May 28, 1980
- [AD 76-25-03](https://openairdocs.org/ad/76-25-03): Main Rotor Blade Spars · Columbia Helicopters 107-II. Effective Dec 10, 1976
- [AD 73-08-01](https://openairdocs.org/ad/73-08-01): Aft Transmission Quill Shaft · Columbia Helicopters 107-II. Effective Mar 11, 1975
- [AD 74-17-02](https://openairdocs.org/ad/74-17-02): Rotor Blade Inspection System · Columbia Helicopters 107-II. Effective Aug 13, 1974
- [AD 72-16-10](https://openairdocs.org/ad/72-16-10): Aft Transmission Ring · Columbia Helicopters 107-II. Effective Aug 11, 1972
- [AD 66-13-05](https://openairdocs.org/ad/66-13-05): Fire Detection System · Columbia Helicopters 107-II. Effective Jun 18, 1966
- [AD 64-06-07](https://openairdocs.org/ad/64-06-07): Stability Augmentation Systems · Columbia Helicopters 107-II. Effective Mar 7, 1964
- [AD 63-24-04](https://openairdocs.org/ad/63-24-04): Quill Shafts And Collector Gears · Columbia Helicopters 107-II. Effective Nov 27, 1963
- [AD 63-13-05](https://openairdocs.org/ad/63-13-05): Forward Rotor Transmission · Columbia Helicopters 107-II. Effective Jul 3, 1963

### Matched by engine (GE CT58-140-2)

- [AD 2015-20-09](https://openairdocs.org/ad/2015-20-09): Life-limited rotating parts · General Electric CT58-100-2, CT58-110-1, CT58-110-2 and 2 more. Effective Nov 18, 2015
- [AD 2005-04-10](https://openairdocs.org/ad/2005-04-10): Stage 1 compressor disks · General Electric T58-GE-100, T58-GE-10, T58-GE-5 and 2 more. Effective Mar 29, 2005
- [AD 2004-04-06](https://openairdocs.org/ad/2004-04-06): Fuel flow divider assemblies · General Electric T58-GE-402, T58-GE-100, T58-GE-10 and 8 more. Effective Mar 9, 2004
- [AD 2001-12-07](https://openairdocs.org/ad/2001-12-07): Fuel Flow Divider Assemblies · General Electric T58-GE-402, T58-GE-100, T58-GE-10 and 4 more. Effective Jul 2, 2001
- [AD 97-21-08](https://openairdocs.org/ad/97-21-08): Stage 1 forward cooling plate · General Electric T58-GE-100, T58-GE-10, T58-GE-8F and 6 more. Effective Dec 19, 1997
- [AD 97-19-17](https://openairdocs.org/ad/97-19-17): Critical rotating parts · General Electric T58-GE-100, T58-GE-10, T58-GE-5 and 6 more. Effective Nov 28, 1997
- [AD 94-07-05](https://openairdocs.org/ad/94-07-05): Turbine Wheels · General Electric CT58-110-1, CT58-110-2, CT58-140-1 and 1 more. Effective Apr 19, 1994
- [AD 81-18-03](https://openairdocs.org/ad/81-18-03): Fuel Controls · General Electric CT58-100-2, CT58-110-1, CT58-110-2 and 2 more. Effective Sep 17, 1981
- [AD 81-02-02](https://openairdocs.org/ad/81-02-02): Stage One Turbine Wheels · General Electric CT58-100-2, CT58-110-1, CT58-110-2 and 2 more. Effective Feb 2, 1981
- [AD 78-26-08](https://openairdocs.org/ad/78-26-08): Lube Pump Drive Shaft · General Electric CT58-100-2, CT58-110-1, CT58-110-2 and 2 more. Effective Dec 19, 1978
- [AD 67-01-02](https://openairdocs.org/ad/67-01-02): Rotor Discs · General Electric CT58-100-1, T58-GE-5, T58-GE-1 and 5 more. Effective Aug 24, 1976
- [AD 76-13-02](https://openairdocs.org/ad/76-13-02): Oil Cooler-To-Fuel Filter Hose · General Electric CT58-100-2, CT58-110-1, CT58-110-2 and 2 more. Effective Jul 6, 1976
- [AD 74-25-01](https://openairdocs.org/ad/74-25-01): Fuel System Hose · General Electric CT58-140-1 and CT58-140-2. Effective Dec 10, 1974
- [AD 69-17-03](https://openairdocs.org/ad/69-17-03): First and Second Stage Turbine Rotor Discs · General Electric T58-GE-5, T58-GE-1, CT58-100-2 and 4 more. Effective Aug 27, 1969

### 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
- [AD 2008-22-16](https://openairdocs.org/ad/2008-22-16) (historical): Repetitive heavy lift (RHL) · General Electric CT58-100-2, CT58-110-1, CT58-110-2 and 2 more. Effective Dec 1, 2008
- [AD 2001-18-06](https://openairdocs.org/ad/2001-18-06) (historical): Engine Life-limited Rotating Parts · General Electric CT58-100-2, CT58-110-1, CT58-110-2 and 2 more. Effective Oct 18, 2001
- [AD 69-23-02](https://openairdocs.org/ad/69-23-02) (historical): Stage 2 Compressor Rotor Disc Shafts · General Electric CT58-100-2, CT58-110-1, CT58-110-2 and 2 more. Effective Oct 15, 1970
- [AD 79-23-04](https://openairdocs.org/ad/79-23-04) (historical): Turboshaft Engines Rotating Components · General Electric CT58-100-2, CT58-110-1, CT58-110-2 and 2 more

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N185CH.

## FAA accident and incident reports

None matched to N185CH.

## Reports on N185CH not matched to an aircraft (1)

They name N185CH, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19951127042919I](https://openairdocs.org/incident/19951127042919I), Nov 27, 1995: Kawski KV1072 (N185CH), Glenbrook, NM. Narrative: the pilot, david edward shipley, pilot in command, stated that while performing an external load lift of cut logs on 11/27/95, at approximately 1240…

## Service difficulty reports (4)

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 CHIA2020032324435](https://openairdocs.org/sdr/CHIA2020032324435), Mar 22, 2020: ENGINE. FAILED. DURING CRUISE FLIGHT FROM KABUL TO BAGRAM #2 ENGINE CHIP LIGHT ILLUMINATED, AIRSPEED 100 KNOTS, 7500 FT MSL. CO-PILOT WAS IN CONTROL OF THE AIRCRAFT, SO THE COM
- [SDR CHIA2018101083560](https://openairdocs.org/sdr/CHIA2018101083560), Oct 8, 2018: FIRE DETECTOR. DEFECTIVE. NR 1 FIRE LIGHT CAME ON DURING FLIGHT. AIRCRAFT CONTINUED TO REGULARLY SCHEDULED DESTINATION. REMOVED AND REPLACED NR 1 AFT UPPER FIRE DETECTOR. RETURNED AIRCRA
- [SDR CHIA2018101063561](https://openairdocs.org/sdr/CHIA2018101063561), Oct 6, 2018: FIRE DETECTOR. DEFECTIVE. NR 1 FIRE LIGHT CAME ON DURING FLIGHT. AIRCRAFT CONTINUED TO REGULARLY SCHEDULED DESTINATION. REMOVED AND REPLACED NR 1 AFT UPPER FIRE DETECTOR. RETURNED AIRCRA
- [SDR CHIR2017122700001](https://openairdocs.org/sdr/CHIR2017122700001), Dec 22, 2017: FIRE WARNING. FALSE ACTIVATION. DURING TAKE OFF, THE NR 1 ENGINE FIRE HANDLE LIGHT ILLUMINATED. THE CREW PERFORMED AN EMERGENCY CHECKLIST MEMORY ITEMS AND CONFIRMED NO FIRE WAS PRESENT. A PREC

## Service difficulty reports on N185CH not matched to an aircraft (2)

They name N185CH, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR CHIA202003224435](https://openairdocs.org/sdr/CHIA202003224435), Mar 22, 2020: ENGINE. FAILED. SUPPLEMENTAL INFORMATION: THE TC HOLDER HAS CREATED SERVICE BULLETIN 107-80-0002 THAT IMPLEMENTS AN INSPECTION WITHIN 50 HOURS TIME IN SERVICE AND EVERY 100 HOU
- [SDR CHIA2018030703187](https://openairdocs.org/sdr/CHIA2018030703187), Mar 4, 2018: ANGLE. CRACKED. DURING A RAMP CHECK A CRACK WAS FOUND IN A STRUCTURAL CAP ANGLE IN THE AFT RT CORNER OF THE BLOWER COMPARTMENT. SUPPLEMENTAL INFORMATION: REMOVED CRACKED SECTIO

## STCs that may be installed (OpenAirDocs) (40)

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 (Columbia Helicopters 107-II)

- [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 SH1040NW](https://openairdocs.org/stc/SH1040NW): Installation of Navigation & Communication System. Columbia Helicopters Inc
- [STC SR00925DE](https://openairdocs.org/stc/SR00925DE): Installation of Garmin GTX 335/335R and GTX345/345R transponders to provide ADS-B Out and In functionality. Peregrine
- [STC SR02464SE](https://openairdocs.org/stc/SR02464SE): Installation of a Supplemental Lighting System. Aviation Specialties Unlimited 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 SR01648SE](https://openairdocs.org/stc/SR01648SE): Installation of Multipurpose Flight Recorder System. Columbia Helicopters Inc
- [STC SR02863NY](https://openairdocs.org/stc/SR02863NY): Installation of Torrentula Valve, Power Fill & Control System. SEI Industries Ltd
- [STC SR01811SE](https://openairdocs.org/stc/SR01811SE): Installation of General Electric Model CT58-140-2 engines. Columbia Helicopters Inc
- [STC SH1034NW](https://openairdocs.org/stc/SH1034NW): Installation of a 160 gallon auxiliary fuel system. Columbia Helicopters Inc
- [STC SR00926SE](https://openairdocs.org/stc/SR00926SE): Installation of improved Diamond J Inc. dual engine torque indicator per Columbia Helicopters Inc. Master Drawing List 00-AVI-0913, Revision B, dated June 4, 2001, or later FAA approved revision. Columbia Helicopters Inc
- [STC SR00923SE](https://openairdocs.org/stc/SR00923SE): Installation of Honeywell Solid State Flight Data Recorder (SSFDR) per Columbia Helicopters, Inc., Master Drawing List 99-AVI-0318, Revision B, dated May 22, 2001, or later FAA approved revision. Columbia Helicopters Inc
- [STC SH4393NM](https://openairdocs.org/stc/SH4393NM): Installation of aft transmission housing, P/N A07D2231-15, modified to accept the Verto l107-II helicopter aft transmission accessory gears and modified cover, P/N A02D2240. Columbia Helicopters Inc
- [STC SR00925SE](https://openairdocs.org/stc/SR00925SE): Installation of Improved Diamond J Inc. gas generator RPM indicator per Columbia Helicopters, Inc. Master Drawing List Document No. 00-AVI-1205, Revision C, dated April 11, 2006, or later Federal Aviation Administration (FAA) approved revision. Columbia Helicopters Inc
- [STC SR01641SE](https://openairdocs.org/stc/SR01641SE): Installation of Improved Primary Structure at frame Stations 101 through 120. Columbia Helicopters Inc
- [STC SR01642SE](https://openairdocs.org/stc/SR01642SE): Installation of mounting provisions, utility equipment. Columbia Helicopters Inc
- [STC SR01639SE](https://openairdocs.org/stc/SR01639SE): Installation of a 190 gallon fuel system conversion. Columbia Helicopters Inc
- [STC SR01270SE](https://openairdocs.org/stc/SR01270SE): Installation of Load Beam, Hook for Attaching External Load, and Load Cell (Sensor) Indication System. Columbia Helicopters Inc
- [STC SR01595NY-D](https://openairdocs.org/stc/SR01595NY-D): Installation of a Keystone Helicopter Utility Interior. Not valid for VERTOL 107-II model helicopters serial numbers 402, 404, 406, 2002, and 2003. Columbia Helicopters Inc
- [STC SR00466SE](https://openairdocs.org/stc/SR00466SE): Installation of substitute fuel quantity units. Columbia Helicopters Inc
- [STC SR01417SE](https://openairdocs.org/stc/SR01417SE): Installation of improved fire shields per Columbia Helicopters Inc. Master Drawing List 03-RDE-0930, revision B, dated May 19, 2004 or later FAA approved revision. The modification must be maintained in accordance with Columbia Helicopters Document C07-2/71-30-00, Revision 0, dated May 10, 2004, or later FAA approved revision. Columbia Helicopters Inc
- [STC SR01269SE](https://openairdocs.org/stc/SR01269SE): Installation of a replacement AC generator, generator control panel, and related electrical controls per Columbia Helicopters, Inc. Master Drawing List Document No. 03-RDE-0102, Revision C, dated January 19, 2004, or later Federal Aviation Administration (FAA) approved revision. The modification must be maintained in accordance with Columbia Helicopters, Inc. Maintenance Manual Supplement Document No. C07-2/24-20-01, Revision 0, dated October 15, 2003, or later FAA accepted revision. Columbia Helicopters Inc
- [STC SR01271SE](https://openairdocs.org/stc/SR01271SE): Installation of a replacement master caution panel per Columbia Helicopters, Inc. Master Drawing List Document No. 03-RDE-0509, Revision B, dated January 19, 2004, or later Federal Aviation Administration (FAA) approved revision. The modification must be maintained in accordance with Columbia Helicopters, Inc. Maintenance Manual Supplement Document No. C07-2/33-10-00, Revision 0, dated October 20, 2003 or later FAA accepted revision. Columbia Helicopters Inc
- [STC SR01274SE](https://openairdocs.org/stc/SR01274SE): Installation of an additional engine oil low level warning lights per Columbia Helicopters, Inc. Master Drawing List Document No. 02-AVI-0912, Revision B, dated January 19, 2004, or later Federal Aviation Administration (FAA) approved revision. The modification must be maintained in accordance with Columbia Helicopters, Inc. Maintenance Manual Supplement Document No. C07-2/79-10-00, Revision 0, dated November 28, 2003, or later FAA approved revision. Columbia Helicopters Inc
- [STC SR01275SE](https://openairdocs.org/stc/SR01275SE): Installation of a replacement attitude indicator per Columbia Helicopters, Inc. Master Drawing List Document No. 03-RDE-0412, Revision B, dated January 19, 2004, or later Federal Aviation Administration (FAA) approved revision. The modification must be maintained in accordance with Columbia Helicopters, Inc. Maintenance Manual Supplement Document No. C07-2/34-23-00, Revision 0, dated September 19, 2003, or later FAA accepted revision. Columbia Helicopters Inc
- [STC SR01276SE](https://openairdocs.org/stc/SR01276SE): Installation of a utility electrical power and control system per Columbia Helicopters, Inc. Master Drawing List Document No. 02-RDE-0401, Revision B, dated January 19, 2004, or later Federal Aviation Administration (FAA) approved revision. The modification must be maintained in accordance with Columbia Helicopters, Inc. Maintenance Manual Supplement Document No. C07-2/33-40-00, Revision 0, dated October 15, 2003, or later FAA accepted revision. Columbia Helicopters Inc
- [STC SR01277SE](https://openairdocs.org/stc/SR01277SE): Installation of an auxiliary AC bus system per Columbia Helicopters, Inc. Master Drawing List Document No. 02-RDE-0901, Revision B, dated January 19, 2004, or later Federal Aviation Administration (FAA) approved revision. The modification must be maintained in accordance with Columbia Helicopters, Inc. Maintenance Manual Supplement Document No. C07-2/24-20-00, Revision 0, dated October 15, 2003, or later FAA accepted revision. Columbia Helicopters Inc
- [STC SR01273SE](https://openairdocs.org/stc/SR01273SE): Installation of Replacement Turn & Slip Indicator and Pitot Heat Relays. Columbia Helicopters Inc
- [STC SR01190SE](https://openairdocs.org/stc/SR01190SE): Fabrication and installation of Columbia Helicopters, Inc. (CHI) Replacement Harness Installation C07P4033-9. Columbia Helicopters Inc
- [STC SR00470SE](https://openairdocs.org/stc/SR00470SE): Installation of improved triple tachometer indicators. Columbia Helicopters Inc
- [STC SR00375SE](https://openairdocs.org/stc/SR00375SE): Installation of an alternate fire detector system. Columbia Helicopters Inc
- [STC SR01012AT](https://openairdocs.org/stc/SR01012AT): Installation of composite floor panels. Advanced Technology & Research, Inc
- [STC SH705NW](https://openairdocs.org/stc/SH705NW): Installation of an improved auxiliary(emergency) battery, P/N 405070. Columbia Helicopters Inc
- [STC SH131NW](https://openairdocs.org/stc/SH131NW): Installation of General Electric CT58-140-1 engines. (107-II S/N 2, 4, 5, 6, 101, 107, 108, 2002, 2003). Columbia Helicopters Inc
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International
- [STC SH1210NW](https://openairdocs.org/stc/SH1210NW): Modification of main fuel tanks from bladders to integrally sealed tanks. Columbia Helicopters Inc
- [STC SH1102NW](https://openairdocs.org/stc/SH1102NW): Installation of transmission oil cooler blower dirve shaft adapter. Columbia Helicopters Inc
- [STC SH1046NW](https://openairdocs.org/stc/SH1046NW): Installation of an interior arrangement. Columbia Helicopters Inc
- [STC SH422NW](https://openairdocs.org/stc/SH422NW): Installation of electrical sensors on each main rotor blade to monitor blade integrity in flight. Columbia Helicopters
- [STC SH205NW](https://openairdocs.org/stc/SH205NW): Installation improved aft transmission lower case, modification of aft transmission upper case. Columbia Helicopters
- [STC SH269EA](https://openairdocs.org/stc/SH269EA): Instruments for instrument flight(HIR). New York Airways, Inc

## Related

- Other Columbia Helicopters 107-II aircraft: https://openairdocs.org/model/columbia-helicopters-107-ii/aircraft.md
- The GE CT58-140-2 engine: https://openairdocs.org/engine/ge-ct58-140-2.md

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