N439ML is a 1979 Aero Vodochody L-39ZO (fixed wing single engine) with serial number 731020, registered in Mc Leod, MT. Its FAA registration is valid and runs until Nov 30, 2030; the renewal window opens on May 30, 2030. It is powered by an Ama/Expr UNKNOWN ENG. Its airworthiness certificate is in the experimental class (exhibition), issued Dec 5, 2025. It is one of 5 L-39ZO aircraft in the FAA registry, 1 of them registered in Montana.
1489days left
Registration expiresNov 30, 2030
Today
Registration
- FAA status
- Valid registration
- Expires
- Nov 30, 2030
- Registrant type
- LLC
- Registered owner
- EAST BOULDER LLC
- Location
- Mc Leod, MT
- Local FAA office (FSDO)
- Helena FSDO (HLN FSDO) · (406) 441-5240
- Certificate issued
- Nov 27, 2023
- Last FAA action
- Apr 15, 2025
- Mode S code (hex)
- A545AB
- Mode S code (octal)
- 51242653
- Official record
- registry.faa.gov
Aircraft
- Manufacturer
- AERO VODOCHODY
- Model
- L-39ZO
- Year manufactured
- 1979
- Serial number
- 731020
- Aircraft type
- Fixed wing single engine
- Engine type
- Turbo-fan
- Engine
- AMA/EXPR UNKNOWN ENG
- Engines / seats
- 1 / 2
- Weight class
- Up to 12,499 lb
- Airworthiness
- Experimental since Dec 5, 2025
- Approved operations
- Exhibition