N121SD — Monnett SONERAI-IIB
Active registrationChecked against FAA & NTSB records · as of Jul 25, 2026
N121SD has no NTSB accident records on file. Registration data compiled from public FAA records as of Jul 25, 2026.
Aircraft record
- Serial number
- 2-2B
- Manufacturer
- Monnett
- Model
- SONERAI-IIB
- Category
- Fixed wing single-engine
- Engine
- Volkswagen Conversion
- Registration
- Active
- Registered to
- Doiron Stephen R — New Braunfels, TX
Accident & incident history
No NTSB accident records on file.
Registration timeline
Ownership and registration events for this airframe (the Monnett SONERAI-IIB).
- May 29, 2026registered — Doiron Stephen R
Earlier aircraft on this N-number
The tail number N121SD was previously assigned to a different aircraft. A registration number can be reused across unrelated airframes over decades — these are not the Monnett SONERAI-IIB above.
- until Jan 11, 20181988 Sawyer Steve M GOLDWING (s/n 121)
Frequently asked
- Has N121SD been in an accident?
- No NTSB accident records are on file for N121SD.
- What kind of aircraft is N121SD?
- N121SD is a Monnett SONERAI-IIB (fixed wing single-engine), serial number 2-2B.
- Who is N121SD registered to?
- N121SD is registered to Doiron Stephen R of New Braunfels, TX. Registration status: active.
The full N121SD 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
Instant access · no account · permanent link