N421KM — 1976 Cessna 421C
Active registrationChecked against FAA & NTSB records · as of Oct 28, 2026
N421KM has no NTSB accident records on file. Registration data compiled from public FAA records as of Oct 28, 2026.
Aircraft record
- Serial number
- 421C-0006
- Manufacturer
- Cessna
- Model
- 421C
- Year
- 1976
- Category
- Fixed wing multi-engine
- Engine
- Cont Motor Gtsio-520 Ser
- Registration
- Active
- Registered to
- Weatherproof Montana Llc — Missoula, MT
Accident & incident history
No NTSB accident records on file.
Registration timeline
Ownership and registration events for this airframe (the 1976 Cessna 421C).
- Apr 17, 2024registered — Weatherproof Montana Llc
Frequently asked
- Has N421KM been in an accident?
- No NTSB accident records are on file for N421KM.
- What kind of aircraft is N421KM?
- N421KM is a 1976 Cessna 421C (fixed wing multi-engine), serial number 421C-0006.
- Who is N421KM registered to?
- N421KM is registered to Weatherproof Montana Llc of Missoula, MT. Registration status: active.
The full N421KM report
$12 $29 launch pricing
- Full NTSB investigation narratives — the complete text, not just the cause line
- Pre-buy question list generated from this aircraft’s actual records
- Complete registration & deregistration timeline, print-ready
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