# Cessna 421C - Type: Aircraft model (FAA registry) - Registry codes: 2076016, 2076017 - Manufacturer (registry): CESSNA - Model: 421C - Aircraft type: Fixed wing multi engine - Engines: 2 - Seats: 8 - Data sheet: TCDS A7CE - Registered aircraft: 496 - Page: https://openairdocs.org/model/cessna-421c ## ADs that may apply - [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 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023 - [AD 2018-03-03 R1](https://openairdocs.org/ad/2018-03-03-R1): Fuselage · Textron 401, 401A, 401B and 13 more. Effective May 23, 2018 - [AD 2016-17-08](https://openairdocs.org/ad/2016-17-08): Elevator Tab Control System · Textron 310, 310A, 310B and 46 more. Effective Sep 12, 2016 - [AD 2006-16-18 R1](https://openairdocs.org/ad/2006-16-18-R1): Installing a warning placard on the TAWS/RMI · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 100 more. Effective Jul 18, 2008 - [AD 2005-20-25](https://openairdocs.org/ad/2005-20-25): Avionics bus circuit breaker switches · Cessna 401, 401A, 401B and 15 more. Effective Nov 9, 2005 - [AD 2004-25-16 R1](https://openairdocs.org/ad/2004-25-16-R1): Fuel regulator shutoff valve · Bombardier CL-215-1A10, CL-215-6B11 (CL-215T Variant), CL-215-6B11 (CL-415 Variant) and 64 more. Effective Jun 20, 2005 - [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 2004-21-05](https://openairdocs.org/ad/2004-21-05): B-Seires Combustion Heaters · Bombardier CL-215-1A10, CL-215-6B11 (CL-215T Variant), CL-215-6B11 (CL-415 Variant) and 41 more. Effective Nov 19, 2004 - [AD 2001-23-17](https://openairdocs.org/ad/2001-23-17): GNS 430 units · Cessna 172, 182, 206 and 209 more. Effective Dec 28, 2001 - [AD 2000-01-16](https://openairdocs.org/ad/2000-01-16): Exhaust System · Cessna 320, 320-1, 320A and 28 more. Effective Feb 15, 2000 - [AD 98-25-02](https://openairdocs.org/ad/98-25-02): Top-mounted Antenna · Bell Helicopter Textron Canada 407, 172, 172A and 243 more. Effective Dec 22, 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 98-04-28](https://openairdocs.org/ad/98-04-28): AFM - Limitations Section - Icing · Cessna 310R, 335, 340A and 12 more. Effective Mar 13, 1998 - [AD 97-01-13](https://openairdocs.org/ad/97-01-13): Fuel, Oil and Hydraulic Hoses · Cessna 150, 150A, 150B and 232 more. Effective Feb 3, 1997 - [AD 96-12-22](https://openairdocs.org/ad/96-12-22): Full Flow Engine Oil Adapter · Bellanca CH-300 Pacemaker, 120, 140 and 361 more. Effective Jul 31, 1996 - [AD 95-09-13](https://openairdocs.org/ad/95-09-13): Fuel Inlet Float Valve · Cessna 402C, 404, 414A and 2 more. Effective Jun 14, 1995 - [AD 91-25-08 R1](https://openairdocs.org/ad/91-25-08-R1): Wing Front Spar Upper Caps · Cessna 421C and 425. Effective Nov 4, 1994 - [AD 92-16-18](https://openairdocs.org/ad/92-16-18): Passenger Seat Reinforcement · Cessna 401, 402, 402A and 9 more. Effective Sep 10, 1992 - [AD 90-02-13](https://openairdocs.org/ad/90-02-13): Main Landing Gear · Cessna 310, 310A, 310B and 40 more. Effective Feb 5, 1990 - [AD 87-21-02 R1](https://openairdocs.org/ad/87-21-02-R1): Fuel Filler Openings · Cessna 310D, 310E, 310F and 41 more. Effective Jun 16, 1989 - [AD 84-20-02](https://openairdocs.org/ad/84-20-02): Nose Landing Gear · Cessna 402C, 404, 414A and 3 more. Effective Nov 1, 1984 - [AD 84-03-04](https://openairdocs.org/ad/84-03-04): Windshield Installation Inspection · Cessna 414A, 421C and 425. Effective Feb 16, 1984 - [AD 80-20-06](https://openairdocs.org/ad/80-20-06): KFC-200 Flight Control System Modification Under STC SA1246CE · Cessna 421C with STC SA1246CE. Effective Oct 14, 1980 - [AD 80-17-04](https://openairdocs.org/ad/80-17-04): Fuel Flow Transducers · Aerosonic Fuel Flow Transducers, PA-60-600 (Aerostar 600), PA-60-601 (Aerostar 601) and 9 more. Effective Aug 13, 1980 - [AD 80-13-14](https://openairdocs.org/ad/80-13-14): Fuel Flow Transducer · Cessna 310R, 335, 340A and 4 more. Effective Jul 22, 1980 - [AD 78-13-05](https://openairdocs.org/ad/78-13-05): Improperly Installed Seats · Cessna 340, 340A, 402B and 7 more. Effective Jul 5, 1978 - [AD 78-11-05](https://openairdocs.org/ad/78-11-05): Autopilot Actuator · Cessna 210M, 310R, 340A and 9 more. Effective Jun 5, 1978 - [AD 77-09-02](https://openairdocs.org/ad/77-09-02): Windshield Inspection and Repair · Cessna 421B and 421C. Effective May 9, 1977 - [AD 76-13-07](https://openairdocs.org/ad/76-13-07): Fork Bolts · Cessna 401, 401A, 401B and 11 more. Effective Jul 7, 1976 - [AD 76-07-07](https://openairdocs.org/ad/76-07-07): Fuel Leakage · Cessna 421C. Effective Apr 12, 1976 - [AD 72-11-05](https://openairdocs.org/ad/72-11-05): Auxiliary Fuel Cell Leaks · Cessna 411, 411A, 421 and 3 more. Effective Jun 2, 1972 - [AD 72-03-07](https://openairdocs.org/ad/72-03-07): Landing Gear Failure · Cessna 310, 310A, 310B and 30 more. Effective Feb 9, 1972 Historical (superseded or no longer in force): AD 2018-03-03, AD 2016-07-24, AD 75-23-08 R5 ## NTSB investigations (144, newest 10) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB ERA26LA314](https://openairdocs.org/ntsb/ERA26LA314), Aug 21, 2026: Cessna 421 (N28RH), Fulton, KY, substantial damage. Probable cause: The misfuelling of the airplane by the refueler. Contributing to the accident was the pilot’s failure to verify that the airplane had been properly fueled prior to departing on the accident flight. - [NTSB CEN26LA179](https://openairdocs.org/ntsb/CEN26LA179), May 4, 2026: Cessna 421C (N6161X), Kirksville, MO, substantial damage, investigation ongoing - [NTSB CEN26FA174](https://openairdocs.org/ntsb/CEN26FA174), May 1, 2026: Cessna 421 (N291AN), Wimberley, TX, destroyed, 5 fatal, investigation ongoing - [NTSB WPR24FA289](https://openairdocs.org/ntsb/WPR24FA289), Aug 31, 2024: Cessna 421C (N421GP), Fairview, OR, substantial damage, 3 fatal, investigation ongoing - [NTSB GAA24WA258](https://openairdocs.org/ntsb/GAA24WA258), Jul 18, 2024: Cessna 421C (N264DC), Tofino, Canada, 3 fatal - [NTSB CEN24FA228](https://openairdocs.org/ntsb/CEN24FA228), Jun 17, 2024: Cessna 421 (N245T), Steamboat Springs, CO, destroyed, 2 fatal. Probable cause: The pilot’s failure to maintain sufficient airspeed following a loss of engine power, which resulted in an inadvertent aerodynamic stall/spin at low altitude. - [NTSB DCA24WA107](https://openairdocs.org/ntsb/DCA24WA107), Feb 21, 2024: Cessna 421C (N421RN), Tapachula, Mexico, incident, no damage - [NTSB WPR24LA068](https://openairdocs.org/ntsb/WPR24LA068), Jan 8, 2024: Cessna 421C (N421TP), Carson City, NV, substantial damage. Probable cause: Airport personnel’s failure to properly prioritize their response actions, including updating the airport’s automated weather observation system recording in a timely manner to notify incoming pilots… - [NTSB CEN24LA061](https://openairdocs.org/ntsb/CEN24LA061), Dec 8, 2023: Cessna 421C (N146TJ), McGregor, TX, substantial damage. Probable cause: The failure of the spring pin in the right propeller governor, which precluded the pilot from controlling the propeller pitch to maintain engine rpm, resulting in a loss of engine thrust, excessive… - [NTSB ERA23LA180](https://openairdocs.org/ntsb/ERA23LA180), Apr 5, 2023: Cessna 421C (N880JS), Leesburg, VA, substantial damage. Probable cause: Separation of the left man landing gear scissor hardware, which resulted in a loss of directional control and subsequent runway excursion during landing. All 144: https://openairdocs.org/model/cessna-421c/ntsb ## FAA accident and incident reports (338, newest 10) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Incident 20260712010879I](https://openairdocs.org/incident/20260712010879I), Jul 12, 2026: Cessna 421 (N826CM), Chino, CA, Substantial damage. Aircraft was repositioned to operators hanger with the landing gear down and locked. Propeller tips on both engine are curled aft. Visual inspection of… - [Incident 20260605006829I](https://openairdocs.org/incident/20260605006829I), Jun 5, 2026: Cessna 421C (N438EL), Leesburg, FL, No damage. On departure roll from runway 13. The aircraft exited the runway approximately 200’ after departure roll with an immediate left turn into the grass, clear of… - [Accident 20260430010699A](https://openairdocs.org/incident/20260430010699A), Apr 30, 2026: Cessna 421C (N291AN), Wimberley, TX, Destroyed, 5 fatal. On April 30 2026, at approximately 21:11 local time, [privacy data omitted], a Cessna 421 departed H81 river falls airport, amarillo, Texas, on a part 91 IFR… - [Incident 20250830017059I](https://openairdocs.org/incident/20250830017059I), Aug 30, 2025: Cessna C421 (N421KG), Myrtle Beach, SC, Minor damage. Aircraft experienced a left main tire blowout while taxiing for departure. The aircraft veered left off the taxiway into the grassy median. The left main… - [Accident 20240831012899A](https://openairdocs.org/incident/20240831012899A), Aug 31, 2024: Cessna 421C (N421GP), Fairveiw, OR, Destroyed, 3 fatal. Portland, OR (ttd): [privacy data omitted], C421, after departing runway 25, aircraft attempted to return. [privacy data omitted] Crashed into town houses 2… - [Accident 20240617008899A](https://openairdocs.org/incident/20240617008899A), Jun 17, 2024: Cessna 421C (N245T), Steamboat Sprin, CO, Destroyed, 2 fatal. On Monday June 17th, 2024, at 16:23 MDT twin Cessna 421C crashed into a residential neighborhood while attempting to land at Steamboat Springs/bob Adams field… - [Incident 20240320002169I](https://openairdocs.org/incident/20240320002169I), Mar 20, 2024: Cessna 421C (N7135G), Atchison, KS, Minor damage. Aircraft took off from kfsk (ft. scott) and flew to K59 (Atchison, KS). Upon landing wind caused the aircrafts right wing to shift downward causing the right… - [Accident 20240107001612A](https://openairdocs.org/incident/20240107001612A), Jan 7, 2024: Cessna 421C (N421TP), Carson City, NV, Substantial damage. IFR flight plan route Upon landing rollout (about 25-35 knots) pilot felt and heard a thud and at that moment saw a disabled aircraft out of his peripheral… - [Accident 20231208021649A](https://openairdocs.org/incident/20231208021649A), Dec 8, 2023: Cessna 421C (N146TJ), Mcgregor, TX, Minor damage. Pilot departed act to 5C1 on IFR flight plan. During level off pilot experienced prop governor failure and RPM in excess of 4500. Attempted to return to… - [Incident 20230713010029I](https://openairdocs.org/incident/20230713010029I), Jul 13, 2023: Cessna 421C (N425MF), Southport, NC, Minor damage. Upon touchdown, aircraft left main landing gear turned sideways and began oscillating left and right due to a lost castle nut and bolt at the scissor link… All 338: https://openairdocs.org/model/cessna-421c/incidents ## Complete lists - aircraft: 496, https://openairdocs.org/model/cessna-421c/aircraft - ads: 36, https://openairdocs.org/model/cessna-421c/ads - incidents: 338, https://openairdocs.org/model/cessna-421c/incidents --- From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.