Models / Cessna / 421C / N56RX Aircraft record N56RX 1976 Cessna 421C Registration valid Unclaimed Source: FAA, updated Oct 20, 2026Safety record in brief: 1 NTSB accident (substantial damage, Feb 2003) · 4 ADs may apply · 2 service difficulty reports
Registration Valid expires Aug 31, 2031 NTSB events 1 substantial, 2003 ADs may apply 4 confirm with A&P Service reports 2 since 1995
Registration FAA Aircraft Registry · Oct 20, 2026
Registered owner Co-owners
City, state Rancho Cordova, CA
Certificate issued Aug 3, 2024
Expires Aug 31, 2031
Airworthiness Standard · Normal
Airworthiness date Nov 17, 1976 We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.
Airframe & engine FAA Registry + type data Airframe
Manufacturer Cessna
Model 421C
Year 1976
Serial number 421C0207
Aircraft type Fixed wing multi engine
Category Land
Certification Type Certificated
Seats 8
Engines 2
Max takeoff weight Up to 12,499 lb
Mode S code A7261E Engine
Make and model Cont Motor Gtsi0-520-F-K
Type Reciprocating
Power 435 hp Total time and engine hours aren't public. They appear here once the owner adds logbooks.
Ownership history Ownership history from FAA records 2024 – now Co-owners Rancho Cordova, CA · current Individual owners are shown by city and state only.
Safety record NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026 NTSB events (1)
Accident · substantial damage Feb 16, 2003 · San Francisco, CA The vehicle driver's inadequate visual lookout and failure to follow established procedures. A contributing factor was the dark nighttime condition.
Damage Substantial
Injuries None
Report LAX03LA088 From NTSB records; matched by serial number. Read NTSB report (search CAROL for LAX03LA088)
Accident history for this model ADs published since 1998 that may apply (4) These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
AD Subject Effective Applies to 2016-17-08 Elevator Tab Control System Sep 12, 2016 Airframe (421C) 2005-20-25 The Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 402C, 404, 411… Nov 9, 2005 Airframe (421C)Certain serial numbers: 401 655; 401 401-0001–401-0322; 401A 655; 401A 401A0001–401A0132; 401B 401B0001–401B0221; 402 402-0001–402-0322; …. Only with: Equipped with an avionics bus circuit breaker switch P/N CM3589-50, 593-250-101, 593-250-102, W31-X2M5A-50, or W31-X1000-50. 2000-01-16 Cessna Aircraft Company 300 and 400 Series Airplanes Feb 15, 2000 Airframe (421C) 98-04-28 Cessna Aircraft Company Models T303, 310R, T310R, 335, 340A, 402B, 402C, 404, F406, 414… Mar 13, 1998 Airframe (421C)
AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.
Service Difficulty Reports (2) Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.
Autoflight · autopilot sys · malfunctioned Dec 26, 2012
PASSING THROUGH 8000FT MSL, THE AUTOPILOT SYS WENT INTO AN UNCOMMANDED NOSE PITCH OVER RAPID DESCENT. PILOT TRIED THE AUTOPILOT DISCONNECT SWITCH WHILE TRYING TO ARREST THE DESCENT WITH THE ELEVATOR BACK PRESSURE. SWITCH DID NOT DISENGAGE THE AUTOPILOT. TRIED THE SWITCH AGAIN, BUT IT DID NOT…
From FAA Service Difficulty Reports; matched by N-number and serial number. Reciprocating engine · stud · broken Oct 23, 2012
DURING AMT TROUBLESHOOTING OF THE NR 1 ENGINE ALTERNATOR INTERMITTENT, DISCOVERED CRANKCASE STUDS BROKEN, UNRELATED TO THE ALTERNATOR ISSUE, INITIATED THE DISASSEMBLY AND REMOVED CYLINDER, ALL NON-DESTRUCTIVE TESTING CHECKS OK, REPLACING THE STUDS, ALSO REPLACING BROKEN TERMINAL AT THE ALTERNATOR…
From FAA Service Difficulty Reports; matched by N-number and serial number.
Sources FAA Aircraft Registry Registration, owner city and state, airframe, engine updated Oct 20, 2026 NTSB accident and incident database Accidents and incidents since 1982 updated Oct 15, 2026 FAA Airworthiness Directives (Federal Register) ADs published since 1998 updated Oct 20, 2026 FAA Service Difficulty Reports Reports since 1995 updated Oct 16, 2026 Request owner name removal Report an error in this record