In applying the sealant the operator was required to access the inside of the fuel tank using small removable inspection hatches in the top surface of the wing, and of necessity, this resulted in poor visibility and awkward conditions for working inside the tank.
The operator was applying the sealant. The operator was required to access the inside of the fuel tank using small removable inspection hatches in the top surface of the wing. This resulted in poor visibility for. This was of necessity. This resulted in awkward conditions for. This was of necessity. This was working inside the tank. This was of necessity.