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Punctuality (technical) FRA
• Defined as the number of technically punctual revenue take-offs
in FRA divided by the number of all revenue take-offs in FRA.
Delay Duration
• Defined as the total of technical delay duration divided
by the number of all revenue take-offs.
• The total of technical delay duration is calculated as the
sum of all durations of technical delays of more than 15 Minutes.
More Ground Time
• Defined as "more" on-ground time divided by the
planned technical on-ground time.
• "More" on-ground time is calculated as the sum
of all "more" on-ground times (MGT). Planned technical
on-ground time is calculated as the sum of on-ground
times for A-Checks (Netline plug "A" or "AAD"),
C-Checks (C), special arranged layovers (SLZ), special orders (SO)
and scheduled on-ground times (SGT).
Availability (technical)
• Defined as technical on-ground time divided by A/C service
time.
• Technical on-ground time is calculated as the sum of on-ground
times for A-Checks (NetLine plug "A" or "AAD"),
"Aircraft On Ground" (AOG), scheduled on-ground
times (SGT), unscheduled on-ground times (UGT) and "more"
on-ground times (MGT).
• A/C service time is calculated as the sum of A/C in-service
days.
H/I Deferred Items
• Defined as the number of open items with classification
"handicap" (H) or "important" (I) divided by
the number of aircraft in the fleet at a given time.
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