The 75th percentile performance figures for airborne delay at Perth are indicated in Figure 11. November performance for the median (-0.4 minutes) and the 75th percentile (1.6 minutes) met the targets. Compared to the same month last year, there was a decrease in the airborne delay median performance (from -0.3 minutes) and an increase in 75th percentile performance (from 1.5 minutes).
The 24-month trend for airborne delay at Perth is upwards.
Figure 11: Perth airborne delay 75th percentile (last 24 months)
Table 7 describes the distinctive events during November in Perth.
(minutes – 75th percentile)
(Contributing causes to increased delays)
|27 November||–||3.1||Afternoon: Harmony outage from 1510 until 1821 local resulted in flights unable to adjust off-block time information leading to a concentration of demand due to non-compliant flights.|
Table 7: Distinctive event descriptions for Perth.