TurboTech has been in the Aerospace segment and in addition to Oil Cooling Systems have designed, developed and produced Uplock
system to indigenously built Tejas (LCA) aircraft.
During its investigation the NTSB determined the aircraft underwent extensive maintenance that included the removal, replacement and visual inspection of the left and right main landing gear uplock
It never completely engaged the uplock
so the gear fell back down.
My favorite example is a main landing gear uplock
bracket, a piece of stamped and drilled aluminum sheet.
1, which is a comparison between determinant assembly and monolithic approaches to the 767 main landing gear door uplock
This AD requires the installation of modified roller sub-assemblies in both the main landing gear (MLG) door lock and the MLG uplock
. This AD is effective 2 December.
When not in use, the sinking platform is held up by four 10-inch-bore Vickers uplock
cylinders that take the load off the main cylinder.
A broken uplock
cable can result in a gear-up landing, but it's an easy check on the ground.
After consulting NATOPS, my two copilots, my flight engineer and I determined the nose gear was released from its uplock
. We continued with the procedures.
Had the crack gone undetected, the bracket most likely would have cracked through or broken off, possibly jamming the uplock
mechanism and preventing gear extension.