During the day the pilot, who was inexperienced in agricultural
operations, had completed the spreading of superphosphate while
under the supervision of a Class 1 agricultural pilot. The strip
used, though adequate in length, was substantially below the
prescribed minimum in width, it was bordered by rough, rutted
ground and targe rocks and the transverse gradient was in excess of
the specified maximum. In the late afternoon the pilot returned to
the strip to load some equipment. The wind was calm and shortly
after making a normal landing the aircraft diverged approximately
12 feet to the right of the strip centre line. Due to the rough
ground and downslope the pilot was unable to regain the central
strip and the main wheels struck some large rocks tipping the
aircraft on to its nose.
