The adequacy of MBZ procedures to ensure the safety of
Instrument Flight Rules (IFR), Regular Public Transport (RPT) and
charter aircraft has been questioned several times since their
inception in 1991. The former Bureau of Air Safety Investigation
(BASI) recommended in 1993 that, to enhance safety within MBZs
(then called MTAFs), areas such as pilot education and training,
along with stricter surveillance and enforcement of procedural
compliance, be reviewed. BASI further recommended in 1997 that
options for pilots to confirm the correct operation of
communication equipment be examined. The current study reviews the
available data for airspace-related occurrences in MBZs since 1994.
Given the limited detail available for the majority of occurrences,
caution must be used when interpreting the results of the
analysis.