M was the first real serial production version after some L410 with different engines where built in the 1970s. M was added to the name because the aircraft had the M601A engine produced by Motorlet in Czech. M-Types have 17 seats and 5,700 kg MTOW.
Later, in the 1980s LET improved the aircraft to the UVP-Version with a longer wing giving better STOL-Performance. Because the wing was more heavy, the seat capacity has been reduced down to 15. Later on the MTWO increased however. UVPs have M601B engines or M601D engines.
During the time where the company was manufacturing M and UVP versions at the same time, there was the possibility to install the newer engines (M601B) and some other new systems into the M-Version, making it the MU-Version. If an airplane was initially delivered as M-Version but later on converted to the new engines and systems, it is called MA-Version.
The UVP-E-Version was intruduced in 1986 with new, more powerful engines, M601E and 19 seats as well as a new Propeller with a 5-blade design. It combined the hogh STOL-Perfomance of the UVP with high capacity of 19 seats. The UVP-E version is still in production and the most succesful version.
Basically, all of them are the same airplane. It is always a UVP-E-Modell but with different systems or modifications installed. The airframe and the performance is identically.
UVP-E is the general version. It has a standard cockpit, 19 seats, 1 main door, 1 emergency exit door.
UVP-E3 was for military use optimized. It had a bubble window and some additional cable harness to install military equipment like special transponders. Operation Manuals, Limitations and Perfromance are the same like UVP-E.
UVP-E9 was the first version with some changes, especially to the Avionics and Elektronic systems. A E9 is usually having the additional under-wing exit doors installed.
UVP-E20 is the current version with all modifications developed during the past years. Newer Avionics, Emergency Exit Doors under the wing, some changes in the electrical system, additional safety systems, additional engine indication systems.
Other variants are called UVP-E10, E11 or E13 depending on the mix of modifications installed or not installed. These variant names are used internally but not mentioned in the type certificate.
In 2008, the EASA issued an AD requesting all L410 to be modified. The AD is naming two parts of modification. Part A and Part B.
With Part B, the aircraft will get some additional safety systems like a battery temperature indication, exit lights, door open indications and additional systesm like fuel flow indiactors, some changes in the fuel system and on the steering system.
With this Part B installed, every aircraft is allowed to be operated up to 9 pax or for Cargo or Skydiving operation without limitation.
The Part A is the installation of additional emergency exit doors under the wing. 2 on a UVP-E version and 1 on a UVP or M/MA/MU-Version.
With Part A installed, the aircraft is having it previous capacity and no limitation.
We do. We are based in Philippines and in Germany. Soon we will have a branch in Madagascar to serve our African customer.
Yes, we do. However, some maintenance is only possible to be performed as base maintenance. Please tell us your desired task or project. We will try to fnd the best solution to get it done.
Absolutely. It is an important part of our business so we actually implemented our own online shop for the LET L410 spare parts. Please have a look at www.letspareparts.com
Not at all. The L410 was designed to be low-maintenance. The engineers did a great job!
The maintenance needed is easy to perform and mostly possible to be perfomed at base.
There are two maintenance sytems existing for the L410. One with overhauls every 4,800 flight hours and one without overhauls but with periodic inspections every 300, 600, and 1,200 hours.