The ATSB recommends that Pacific National undertake a review and
implement remedial action as required of the refurbishment and
assembly of bearings to make sure that:
a) appropriate measures are in place to reduce the risk of
accidental damage to components
b) reconditioned roller assemblies are appropriately inspected when
installed
c) bearing bore sizes are satisfactory at the time of overhaul.
(Desirably the method of measurement should be assessed to
determine if it could adequately differentiate between diameters at
the outer edges of the inner rim compared with the centre of the
ring).
d) journal diameters are satisfactory at the time of overhaul
e) bench end play measurements at bearing re-qualification are
examined to make sure that the measurements are within
specification and lateral end play on installation is within
specification.