# N92DF: Cessna 421C - Status: Valid registration - Airframe: [Cessna 421C](https://openairdocs.org/model/cessna-421c) (registry code 2076016, 8 seats) - Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE) (Textron Aviation Inc.) (OpenAirDocs) - Serial number: 421C0889 - Type: Fixed wing multi engine - Engine type: Reciprocating - Airworthiness: Standard, normal - Airworthiness date: July 18, 1980 - Certificate issued: September 24, 2021 - Expires: September 30, 2028 - Mode S code: ACBC22 - Registered owner: [N92df Slo LLC](https://openairdocs.org/faa-owner/N92DF%20SLO%20LLC) - Location: [Arroyo Grande, CA](https://openairdocs.org/faa-place/CA/Arroyo%20Grande) - Owner type: LLC - Owner's area on the map: 35.1765° N, 120.4808° W: Placed by OpenAirDocs at the center of ZIP code 93420, within about 8 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=92DF - Page: https://openairdocs.org/aircraft/N92DF From the FAA registry file of October 21, 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 (Cessna 421C) - [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](https://openairdocs.org/ad/2018-03-03) (historical): Fuselage · Textron 401, 401A, 401B and 13 more. Effective Feb 28, 2018 - [AD 2016-07-24](https://openairdocs.org/ad/2016-07-24) (historical): Elevator Tab Control System · Textron 310, 310A, 310B and 46 more. Effective Apr 26, 2016 - [AD 75-23-08 R5](https://openairdocs.org/ad/75-23-08-R5) (historical): Engine Exhaust System · Cessna Aircraft Company, The 320 Model or Series (all), 340 Model or Series (all), 401 Model or Series (all) and 12 more. Effective Nov 4, 1986 ## Information bulletins (advisory) (10 in force) - [SAIB CE-13-27R1](https://openairdocs.org/saib/CE-13-27R1): Flight Controls Frayed Flap Extend Cables. Issued Jan 5, 2022 - [SAIB AIR-21-20](https://openairdocs.org/saib/AIR-21-20): TE FLAP CONTROL SYSTEM, Flight Controls –Flap Cable Tension. Issued Dec 16, 2021 - [SAIB CE-14-11R1](https://openairdocs.org/saib/CE-14-11R1): Landing Gear; Nose Landing Gear Trunnions. Issued Sep 23, 2015 - [SAIB CE-14-19](https://openairdocs.org/saib/CE-14-19): Landing Gear; Main Landing Gear (MLG) Torque Link. Issued May 30, 2014 - [SAIB CE-13-22](https://openairdocs.org/saib/CE-13-22): Electrical Power System Circuit Breaker Switch. Issued Mar 13, 2013 - [SAIB CE-11-29R1](https://openairdocs.org/saib/CE-11-29R1): Flight Control System. Issued Sep 27, 2011 - [SAIB CE-10-01](https://openairdocs.org/saib/CE-10-01): Fuel: Fuel Tank Selector Valve Systems. Issued Oct 5, 2009 - [SAIB CE-03-17](https://openairdocs.org/saib/CE-03-17): . Issued Jan 13, 2003 - [SAIB ACE-99-06](https://openairdocs.org/saib/ACE-99-06): . Issued Nov 17, 1998 - [SAIB ACE-99-05](https://openairdocs.org/saib/ACE-99-05): . Issued Nov 17, 1998 - [SAIB CE-14-11](https://openairdocs.org/saib/CE-14-11) (historical): Landing Gear; Nose Landing Gear Trunnions. Issued Feb 25, 2014 - [SAIB CE-11-29](https://openairdocs.org/saib/CE-11-29) (historical): Flight Control System. Issued Apr 22, 2011 ## NTSB investigations None matched to N92DF. ## FAA accident and incident reports None matched to N92DF. ## Service difficulty reports None filed for this aircraft. ## Related - Other Cessna 421C aircraft: https://openairdocs.org/model/cessna-421c/aircraft.md - STCs for the Cessna 421C: https://openairdocs.org/model/cessna-421c/stcs.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.