# N84MC: Cessna T210R

- Status: Valid registration
- Airframe: [Cessna T210R](https://openairdocs.org/model/cessna-t210r) (registry code 2073459, 6 seats)
- Data sheets: [TCDS 3A21](https://openairdocs.org/tcds/3A21) (Textron Aviation Inc.) (OpenAirDocs)
- Serial number: 21064955
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Certificate issued: April 18, 2024
- Expires: April 30, 2031
- Mode S code: AB7E96
- Registered owner: [On-Site Mech LLC](https://openairdocs.org/faa-owner/ON-SITE%20MECH%20LLC)
- Location: [Helena, MT](https://openairdocs.org/faa-place/MT/Helena)
- Owner type: LLC
- Owner's area on the map: 46.5307° N, 112.1994° W: Placed by OpenAirDocs at the center of ZIP code 59601, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=84MC
- Page: https://openairdocs.org/aircraft/N84MC

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): 28 in force

### Matched by airframe (Cessna T210R)

- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2023-02-17](https://openairdocs.org/ad/2023-02-17): Fuselage Main, Structure · Textron 210N, 210R, P210N and 8 more. Effective Mar 20, 2023
- [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
- [AD 2012-10-52](https://openairdocs.org/ad/2012-10-52): Turbochargers · Cessna T206H, T207A, T210F and 21 more. Effective Jun 26, 2012
- [AD 2012-10-04](https://openairdocs.org/ad/2012-10-04): Wings · Cessna 210G, 210H, 210J and 15 more. Effective Jun 5, 2012
- [AD 2011-10-09](https://openairdocs.org/ad/2011-10-09): Seat Rails and Roller Housing Inspections · Cessna 150A, 150B, 150C and 221 more. Effective Jun 17, 2011
- [AD 2008-26-10](https://openairdocs.org/ad/2008-26-10): Alternate static air source selector valve · Cessna 172, 172A, 172B and 179 more. Effective Jan 5, 2009
- [AD 2008-10-02](https://openairdocs.org/ad/2008-10-02): Part number identification placard · Cessna 172, 172R, 172RG and 64 more. Effective May 12, 2008
- [AD 2006-03-08](https://openairdocs.org/ad/2006-03-08): Vacuum pumps · Aero Advantage 14-19, 14-19-2, 14-19-3 and 299 more. Effective Mar 10, 2006
- [AD 2005-01-19](https://openairdocs.org/ad/2005-01-19): Mode S transponders · GARMIN International GTX 330D, GTX 330, GTX 33D and 830 more. Effective Feb 23, 2005
- [AD 2002-26-03](https://openairdocs.org/ad/2002-26-03): Brackett single screen air filter · Cessna 210, 210R, T207A and 21 more. Effective Feb 18, 2003
- [AD 98-20-33](https://openairdocs.org/ad/98-20-33): AFM - Limitation Section - Icing · Cessna T210R. Effective Nov 17, 1998
- [AD 98-14-03](https://openairdocs.org/ad/98-14-03): Transponders · Cessna 172, 172A, 172B and 230 more. Effective Aug 16, 1998
- [AD 94-12-08](https://openairdocs.org/ad/94-12-08): Flight Manual Revision · Cessna 210G, 210H, 210J and 15 more. Effective Jul 22, 1994
- [AD 88-22-07](https://openairdocs.org/ad/88-22-07): Hose Assemblies · Cessna P210N, P210R, T207 and 22 more. Effective Nov 24, 1988
- [AD 84-10-01 R1](https://openairdocs.org/ad/84-10-01-R1): Bladder Fuel Cells · Cessna 180, 180A, 180B and 103 more. Effective Jul 5, 1988
- [AD 79-10-14 R1](https://openairdocs.org/ad/79-10-14-R1): Fuel Tank Venting · Cessna 140A, 150, 150A and 172 more. Effective May 30, 1988
- [AD 86-19-11](https://openairdocs.org/ad/86-19-11): Contaminated Fuel · Cessna 177, 177A, 177B and 83 more. Effective Oct 4, 1986
- [AD 85-23-07](https://openairdocs.org/ad/85-23-07): Autopilot Systems · Aerostar PA-60-700P (Aerostar 700P), 172L, 172P and 37 more. Effective Jan 27, 1986
- [AD 85-11-07 R1](https://openairdocs.org/ad/85-11-07-R1): Turbocharger Oil Reservoir · Cessna P210N, P210R and T210R. Effective Aug 9, 1985
- [AD 80-07-01](https://openairdocs.org/ad/80-07-01): Oil Pressure · Cessna T207, T207A, T210F and 20 more. Effective Mar 28, 1980
- [AD 79-25-07](https://openairdocs.org/ad/79-25-07): Alternator Ground · Cessna 180, 180A, 180B and 95 more. Effective Dec 13, 1979
- [AD 79-15-01](https://openairdocs.org/ad/79-15-01): Fuel Flow Distribution · Cessna 206, 206H, 207 and 57 more. Effective Jul 26, 1979
- [AD 79-08-03](https://openairdocs.org/ad/79-08-03): Electrical System · Cessna 120, 140, 140A and 152 more. Effective Jun 6, 1979
- [AD 78-07-01](https://openairdocs.org/ad/78-07-01): Engine Oil Pump · Cessna T207, T207A, T210F and 20 more. Effective Apr 6, 1978
- [AD 77-16-05](https://openairdocs.org/ad/77-16-05): Fuel Selector Valve · Cessna 206, 206H, 207 and 55 more. Effective Aug 11, 1977
- [AD 72-07-09](https://openairdocs.org/ad/72-07-09): Cracks And Loose Bolts In Fin & Rudder · Cessna 182, 182A, 182B and 74 more. Effective Oct 17, 1974
- [AD 69-08-11](https://openairdocs.org/ad/69-08-11): Fuel Boost Pump · Cessna 206, 206H, 210 and 38 more. Effective Apr 22, 1969

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

- [AD 87-20-03 R2](https://openairdocs.org/ad/87-20-03-R2) (historical): Seat Tracks · Cessna 150A, 150B, 150C and 212 more. Effective Sep 24, 1990

## Information bulletins (advisory) (9 in force)

- [SAIB AIR-21-16](https://openairdocs.org/saib/AIR-21-16): FLIGHT COMPARTMENT EQUIPMENT, Cessna Seat Back Attachment Bolt Inspection. Issued Aug 26, 2021
- [SAIB SW-18-31](https://openairdocs.org/saib/SW-18-31): NAVIGATION, ATTITUDE, AND DIRECTION DATA SYSTEM. Issued Nov 21, 2018
- [SAIB CE-17-16](https://openairdocs.org/saib/CE-17-16): Main Landing Gear  Actuator Inspection. Issued Jun 9, 2017
- [SAIB CE-13-16](https://openairdocs.org/saib/CE-13-16): Hydraulic Power Pack/Landing Gear System. Issued Feb 8, 2013
- [SAIB CE-12-41](https://openairdocs.org/saib/CE-12-41): Flight Controls  Loose Glide Screw. Issued Aug 9, 2012
- [SAIB CE-12-14](https://openairdocs.org/saib/CE-12-14): Three Alternative Methods of Compliance for AD 2011-10-09. Issued Jan 25, 2012
- [SAIB CE-10-40R1](https://openairdocs.org/saib/CE-10-40R1): Aircraft Fuel System; water contamination of fuel tank systems on Cessna single engine airplanes. Issued Jul 30, 2010
- [SAIB CE-09-10](https://openairdocs.org/saib/CE-09-10): Availability of Secondary Seat Stops for Pilot and Copilot Seats. Issued Feb 5, 2009
- [SAIB CE-05-27R1](https://openairdocs.org/saib/CE-05-27R1): Stabilizers. Issued Sep 6, 2007

## NTSB investigations (1)

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 CEN11CA675](https://openairdocs.org/ntsb/CEN11CA675), Sep 29, 2011: Cessna T210R (N84MC), Lamar, MO, substantial damage. Probable cause: The pilot's inadequate compensation for the wind condition, resulting in a runway excursion.

## FAA accident and incident reports (1)

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 20110929023649A](https://openairdocs.org/incident/20110929023649A), Sep 29, 2011: Cessna T210R (N84MC), Lamar, MO, Substantial damage. On 09/29/2011, at 12:00 CST, aircraft departed jefferson city (jef), Missouri, on an IFR flight plan to Lamar (llu), Missouri. Pilot cancelled IFR flight plan…

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs) (266, first 50)

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 (Cessna T210R)

- [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 SA01800SE](https://openairdocs.org/stc/SA01800SE): Fabrication and installation of new or replacement of existing instrument panel lights dimmer control. TCW Technologies, LLC
- [STC SA01861SE](https://openairdocs.org/stc/SA01861SE): Fabrication and installation of Landing Light Controller. TCW Technologies, LLC
- [STC SA02279AT](https://openairdocs.org/stc/SA02279AT): Installation of a Boom Beam bulb, starter, and ballast. Whelen Aerospace Technologies
- [STC SA04837NY](https://openairdocs.org/stc/SA04837NY): Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights. AeroLED's Holdings, LLC
- [STC SA01134DE](https://openairdocs.org/stc/SA01134DE): Installation of EarthX ETX680-24-TSO Lithium Battery. EarthX Inc
- [STC SA12406WI](https://openairdocs.org/stc/SA12406WI): Installation of a Garmin AXIS Flight Display System. Garmin International Inc
- [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 SA00079NY](https://openairdocs.org/stc/SA00079NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K008 on single and multi engine fixed wing light aircraft incorporating Teledyne Continental reciprocating engines of 450 horsepower or less. Airwolf Filter Corporation
- [STC SA02511SE](https://openairdocs.org/stc/SA02511SE): Installation of replacement fuel quantity indicator sending unit(s). CiES Inc
- [STC SA04046CH PAGE 1](https://openairdocs.org/stc/SA04046CH%20PAGE%201): Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500). Acron Aviation Inc
- [STC SA00925WI](https://openairdocs.org/stc/SA00925WI): Installation of MT-Propeller model MTV-14-D/195-30a hydraulic 4-blade constant speed propeller. MT- Propeller Entwicklung GmbH
- [STC SA04678CH](https://openairdocs.org/stc/SA04678CH): Installation of electric air conditions system Kelly Aerospace kit #KATS-20-004. Kelly Aerospace Thermal Systems LLC
- [STC SA01330LA](https://openairdocs.org/stc/SA01330LA): Installation of alternate avionics support assembly. Radiorax Aviation Systems LLC
- [STC SA01120SE](https://openairdocs.org/stc/SA01120SE): Installation of Door Steward. Mountain View Aviation LLC
- [STC SA02594SE](https://openairdocs.org/stc/SA02594SE): SkyView HDX Instrumentation and Autopilot System manufactured. Dynon Avionics
- [STC SA02386AK](https://openairdocs.org/stc/SA02386AK): Replacement of existing landing and/or taxi light reflector and bulbs with Light Emitting Diode (LED) lighting systems. AeroLED's Holding LLC
- [STC SA00871SE](https://openairdocs.org/stc/SA00871SE): Installation of cockpit sunvisors. Rosen Sunvisor Systems LLC
- [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc
- [STC SA01899WI](https://openairdocs.org/stc/SA01899WI): Installation of Garmin G3X Touch Electronic Flight Instrument 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 SA00306DE](https://openairdocs.org/stc/SA00306DE): Installation of an external infrared imaging system. Dart Aerospace USA Inc
- [STC SA04400NY](https://openairdocs.org/stc/SA04400NY): Installation of the Integrated Back-up Battery System (IBBS). TCW Technologies LLC
- [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 SA11137SC](https://openairdocs.org/stc/SA11137SC): Installation of Plane-Power ALT-FLX alternator. Hartzell Engine Technologies, LLC
- [STC SA00897WI](https://openairdocs.org/stc/SA00897WI): Installation of Concorde Battery Corporation (VRSLA) Valve regulated sealed lead acid battery. Aero-Mach Wilco LLC
- [STC SA04586CH](https://openairdocs.org/stc/SA04586CH): Installation of Electroair Back Up Battery Panel System Control. Electroair Aquisition Corp
- [STC SA01827WI](https://openairdocs.org/stc/SA01827WI): Installation of LED Position Lights. Aero-Mach Wilco LLC
- [STC SA2395CE](https://openairdocs.org/stc/SA2395CE): Replacement of pilot/co-pilot overhead fresh air valves with WEMAC type directional control valves. Aero-Mach Wilco LLC. Lists T210 Series
- [STC SA2558CE](https://openairdocs.org/stc/SA2558CE): Replace the lead acid battery with a Concorde RG 24-11M lead acid battery. Aero-Mach Wilco LLC. Lists T210 Series
- [STC SA2749CE](https://openairdocs.org/stc/SA2749CE): Installation of wing mounted convex mirror, for inspection of nose and main landing gear position. Aero-Mach Wilco LLC. Lists T210 Series
- [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc
- [STC SA02203AK](https://openairdocs.org/stc/SA02203AK): Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV). Genesys Aerosystems 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 1](https://openairdocs.org/stc/SA11174SC%20PAGE%201): Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems. Honeywell International Inc (Bendix King)
- [STC SA02265SE](https://openairdocs.org/stc/SA02265SE): Installation of a camera housing. Airborne Sensor LLC
- [STC SA10822SC](https://openairdocs.org/stc/SA10822SC): Installation of EFD1000 Primary Flight Display. Aspen Avionics Inc
- [STC SA220SO](https://openairdocs.org/stc/SA220SO): Tow bar, release mechanism, and safety tow link. Fliegen Works Inc. d/b/a Pacific Aerial Tow Hooks
- [STC SA00401BO](https://openairdocs.org/stc/SA00401BO): Installation of a SkyTrax100B UAT receiver. Avidyne Corporation
- [STC SA02415CH](https://openairdocs.org/stc/SA02415CH): Installation of Flight Boss LTD S-RPE-CN Rudder Pedal Extensions. Flight Boss Ltd
- [STC SA04181NY](https://openairdocs.org/stc/SA04181NY): Installation of the KFC 230 Aerocruze Automatic Flight Control System. Honeywell International Inc
- [STC SA04182NY](https://openairdocs.org/stc/SA04182NY): Installation of BendixKing KA 310 Autopilot Adapter. Honeywell International Inc
- [STC SA10236SC](https://openairdocs.org/stc/SA10236SC): Installation of a GDC 31 Roll Steering Converter. DAC International Inc
- [STC SA02332AK](https://openairdocs.org/stc/SA02332AK): Installation of a fixed mounted Forward.Vision Enhanced Vision System (EVS) Models 100/600 to include an under-wing conformal fairing with sensor and a glareshield mounted dedicated display monitor. PECO Inc
- [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation
- [STC SA2050CE-D](https://openairdocs.org/stc/SA2050CE-D): Install KAP 100 single axis, KAP 150 two axis, or KFC 150 two axis Flight Control System and optional KAS 297B Vertical Speed and Altitude Selector. Honeywell International Inc
- [STC SA01560WI-D](https://openairdocs.org/stc/SA01560WI-D): Installation of the Honeywell KFD 840 Primary Flight Display System. Honeywell International Inc
- [STC SA01437NY](https://openairdocs.org/stc/SA01437NY): Installation of a 135 amp alternator. ATQA LLC

All 266: https://openairdocs.org/aircraft/N84MC/stcs.md

## Related

- Other Cessna T210R aircraft: https://openairdocs.org/model/cessna-t210r/aircraft.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.