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Aircraft record

N146TJ1978 Cessna 421C

Registration validUnclaimedSource: FAA, updated Oct 20, 2026

Safety record in brief:1 NTSB accident (substantial damage, Dec 2023)5 ADs may apply2 service difficulty reports

Registration
Valid
expires Dec 31, 2029
Based in
Boerne, TX
owner city / state
Engine
GTSIO-520 SER · 435 hp
Cont Motor
Owners
1
since 2019
NTSB events
1
substantial, 2023
ADs may apply
5
confirm with A&P
Service reports
2
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Registered owner
BIRDBOYS2 Aviation LLC
Owner type
LLC
City, state
Boerne, TX
Certificate issued
Dec 12, 2019
Expires
Dec 31, 2029
Airworthiness
Standard · Normal
Airworthiness date
Aug 15, 1990

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
1978
Serial number
421C0500
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
A0BAAC

Engine

Make and model
Cont Motor Gtsio-520 Ser
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
  1. 2019 – nowBIRDBOYS2 Aviation LLCBoerne, TX · 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

Dec 8, 2023 · Mcgregor, TX

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 drag, and the subsequent forced landing to a field.

Damage
Substantial
Injuries
None
Report
CEN24LA061

From NTSB records; matched by serial number.Read NTSB report (search CAROL for CEN24LA061)

Accident history for this model

ADs published since 1998 that may apply (5)

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.

ADSubjectEffectiveApplies to
2016-17-08Elevator Tab Control SystemSep 12, 2016Airframe (421C)
2007-05-15Teledyne Continental Motors GTSIO-520 Series Reciprocating EnginesApr 16, 2007Engine (GTSIO-520 SER)
2005-20-25The Cessna Aircraft Company Models 401, 401A, 401B, 402, 402A, 402B, 402C, 404, 411…Nov 9, 2005Airframe (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.
2000-01-16Cessna Aircraft Company 300 and 400 Series AirplanesFeb 15, 2000Airframe (421C)
98-04-28Cessna Aircraft Company Models T303, 310R, T310R, 335, 340A, 402B, 402C, 404, F406, 414…Mar 13, 1998Airframe (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.

  • Landing gear · bearing · wornJan 1, 1996

    AIRCRAFT OWNER REPORTED HOUR METER RUNNING CONSTANTLY. FOUND LEFT MLG EXTENDED FULLY, ALLOWING SQUAT SWITCH TO BE UNACTUATED AND HOUR METER TO RUN CONSTANTLY. REMOVED LOWER LEG AND FOUND INNER, UPPER BEARING WORN/GALLED AND BINDING IN BARREL. THE AIRCRAFT HAS 1,857.8 HOURS TOTAL TIME AND AD…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Landing gear · bearing · galledJan 1, 1996

    AIRCRAFT OWNER REPORTED HOUR METER RUNNING CONSTANTLY. FOUND LEFT MLG EXTENDED FULLY, ALLOWING SQUAT SWITCH TO BE UNACTUATED AND HOUR METER TO RUN CONSTANTLY. REMOVED LOWER LEG AND FOUND INNER, UPPER BEARING WORN/GALLED AND BINDING IN BARREL. THE AIRCRAFT HAS 1,857.8 HOURS TOTAL TIME AND AD…

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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