FAA Aircraft Registry · Live Lookup · As of Apr 28, 2026
N833BC — Alef Aeronautics MODEL ZERO MILPITAS
Rendered live from the FAA Aircraft Registry (refreshed weekly). This tail has no NTSB events or airworthiness directives indexed against it — type-level history is on the type page below.
Registration
Registrant
ALEF AERONAUTICS INC
Registrant Type
Corporation
Location
SAN MATEO, CA
Status
Registration Valid
Certificate Issued
Jan 29, 2026
Airworthiness Date
—
Registration Expires
Jan 31, 2033
Last Action
Jan 29, 2026
Aircraft
Serial Number
2
Year Manufactured
—
Aircraft Type
Rotorcraft
Certification
Unknown
Engine
—
Engines / Seats
8 / 1
Weight Class
CLASS 1
Mode S (Hex)
AB639B
Type History
Alef Aeronautics MODEL ZERO MILPITAS type page → — 1 registered · 0 NTSB records · 0 airworthiness directives
Live position via ICAO24 AB639B
Looking for a different aircraft? Search the registry.