WOCL (WINDOW OF CIRCADIAN LOW)

Means the period between 02:00 and 05:59 hours in the time zone to which a crew member is acclimatised.

SUITABLE ACCOMODATION

Means, for the purpose of standby, split duty and rest, a separate room for each crew member located in a quiet environment and equipped with a bed, which is sufficiently ventilated, has a device for regulating temperature and light intensity, and access to food and drink.

STBY HOME

Count for 25% as duty period for the cumulative limits.

Always followed by a rest period (min 12 hrs at home base).

The maximum standby duration is 16h.

Free “buffer” of 6hrs, augmented to 8hrs for an augmented crew FDP.

Ceases when reporting at the designed reporting point.

Operator stby procedures are designed to ensure that the combination of STBY and FDP do not lead to more than 18 hrs awake time.

STBY AIRPORT

Counts in full as duty period for the cumulative limits.

Must always be followed by a rest period (min 12 hrs at home base).

Accommodation shall be provided by the company.

Maximum FDP counts from the start of the FDP reduced by any time spent on standby in excess of 4 hrs.

Maximum combined duration of standby and FDP is 16 hrs.

STBY

Means a pre notified and defined period of time during which a crew member is required by the operator to be available to receive an assignment for a flight, positioning or other duty without an intervening rest period.

Start and end time shall be defined and notified in advance.

SPLIT DUTY

The break on the ground counts in full as FDP.A split duty can not follow a reduced rest.

The break on the ground within the FDP has a minimum duration of 3 consecutive hours.

The break excludes the time allowed for post and pre-flight duties and travelling.

The minimum total time for post and preflight duties and travelling is 30 minutes. The operator specifies the actual times in its operations manual.

The maximum basic FDP may be increased by up to 50 % of the break.

Suitable accommodation is provided either for a break of 6 hours or more or for a break that encroaches the WOCL.

If only accommodation is provided (not suitable accomodation), any time of the actual break exceeding 6 hours or any time of the break that encroaches the WOCL does not count for the extension of the FDP.

Split duty cannot be combined with in-flight rest.

REST PERIOD

Means a continuous, uninterrupted and defined period of time, following duty or prior to duty, during which a crew member is free of all duties, standby and reserve.

REST FACILITY

CLASS 1 – bunk separated from cockpit and passengers; suitable for flat or near flat sleeping position.

CLASS 2 – seat in the A/C cabin reasonably free from disturbance by passengers or crew but separated only by a curtain or similar and reclining to at least 45° back angle with leg and foot support.

CLASS 3 – seat in the A/C cabin or cockpit separated only by a curtain or similar reclining to at least 40° back angle with leg and foot support; may not be adjacent to any seat occupied by passengers.

For the flight crew, the duration of the in-flight rest must be at least 90 minutes in general or 2 hours for pilots at the controls during landing.All time spent in the rest facility is counted as FDP.

For 2 sectors or less, and one sector of more than 9 hours of continuous flight time, the maximum FDP may be increased by 1 additional hour.

REST

The minimum rest at HOME BASE is the greater of either the length of the last preceding duty period or 12 hours.

Away from home base minimum rest is the greater of either the length of the last preceding duty period or 10 hours.

Any rest away from home base must provide sufficient time for travelling time + physiological needs + 8 hour sleep opportunity.

The time to be allowed for travelling time should be twice the time for travelling from the place of duty to the place of rest.

A recurrent extended recovery rest period includes a minimum of 36 hours and 2 local nights (8 hrs rest between 22:00 and 08:00 local time).

The time between the end of one (extended recovery rest period) and the beginning of the next (extended recovery rest period) may at no time exceed 168 hours.

If a transition from a late finish or night duty to an early start is planned at home base, the rest period between the 2 FDPs includes 1 local night.

Time zone crossing away from home base, if an FDP ends at a place with a time zone difference of 4 hours or more to its starting point the minimum rest is the greater of either the length of the duty period involved or 14 hours.

West / East the minimum rest at home base between two FDPs with altering directions of travel including a time difference of 4 hours ore more in either direction of the reference time must include at least 3 local nights.

RESERVE

At least a 10h notification period.

The operator rosters a period of 8h during which the crew cannot be contacted.

Not accounted for cumulative duty limits but it shall observe the extended recovery rest requirements.

A period of time during which a crew member is required by the operator to be available to receive an assignment for an FDP, positioning or other duty notified at least 10 hours in advance.

Reserve duty must be rostered/assigned in advance.

The maximum duration of any reserve duty and the maximum number of consecutive days of reserve duty shall be assigned according to the operators OM.

During reserve a crew member must have at least 10 hours between the notification for a duty and the beginning oft that duty period.

During a day of reserve an 8 hour sleep opportunity shall be provided according to fatigue management principles.

The 8 hour period may be included in the notification time but must remain uninterrupted by the operator.

A reserve period that does not result in a duty period may not retrospectively be considered as part of a recurrent extended recovery rest period.

Means a period of time during which a crew member is required by the operator to be available to receive an assignment for an FDP, positioning or other duty notified at least 10 hours in advance.

REFERENCE TIME

Means the local time at the reporting point situated in a 2-hour wide time zone band around the local time where a crew member is acclimatised.

POSITIONING

Means the transferring of a non-operating crew member from one place to another, at the behest of the operator. The positioning before FDP count as FDP. The positioning after FDP count as DUTY PERIOD.

NIGHT DUTY

Means a duty period encroaching any portion of the period between 02:00 and 04:59 in the time zone to which the crew is acclimatised.

LOCAL NIGHT

Means a period of 8 hours falling between 22:00 and 08:00 local time.

LOCAL DAY

Means a 24 hour period commencing at 00:00 local time.

IN FLIGHT REST

The use of in-flight rest requires only the flight crew to be augmented.

The FDP limit under in-flight rest depends on the quality of the rest facility (CLASS 1 / 3 crew 16hrs – 4 crew 17hrs); (CLASS 2 / 3 crew 15hrs – 4 crew 16hrs); (CLASS 3 / 3 crew 14hrs – 4 crew 15hrs). For 2 sectors or less, and one sector of more than 9 hours of continuous flight time, the maximum FDP may be increased by 1 additional hour.

HOME BASE

The home base is a single airport location with a high degree of permanence from where the crew member normally starts and ends any assigned duty periods.

In the case of a change of home base, the first recurrent extended recovery rest period prior to starting duty at the new home base is increased to 72 hours, including 3 local nights. Travelling time between the former home base and the new home base is positioning.

FLIGHT TIME

Means the time between an aircraft first moving from its parking place for the purpose of taking off until it comes on the designated parking position and all engines are shut down.

FLIGHT DUTY PERIOD

Means a period that commences when a crew member is required to report for duty, which includes a sector or a series of sectors, and finishes when the aircraft finally comes to rest and the engines are shut down, at the end of the last sector on which the crew member acts as an operating crew member.

DUTY PERIOD

Means a period which starts when a crew member is required by an operator to report for a duty and ends when that person is free of all duties, including post-flight duty.

DUTY

Means any task that a crew member performs for the operator, including flight duty, administrative work, giving or receiving training and checking, positioning, and some elements of standby.

DISRUPTIVE SCHEDULE

Means a crew member roster with an FDP or combination of FDPs which disrupts the sleep opportunity during the optimal sleep time window. A schedule may be disruptive due to early starts, late finishes or night duties. FOR EARLY TYPE (ITALY) disruptive schedule means: “early start” a duty period starting in the period between 05:00 and 05:59 in the time zone to which a crew member is acclimatised; and
for “late finish” a duty period finishing in the period between 23:00 and 01:59 in the time zone to which a crew member is acclimatised.

Means that an FDP partially or in whole overlays the optimum sleep time windows. A schedule may be disruptive due to early starts, late finishes or night duties.

The limitations always refer to the time zone to which a crew member is acclimatised.

Early type (ITALY) “early start” between 05:00 – 05:59 / “late finish” between 23:00 – 01:59.

The indication “disruptive schedule” type should be set in the schedule page.

A rest period leading from a late finish or night duty to an early start must include one local night.

If 4 or more night duties, early starts or late finishes are performed between 2 extended recovery rest periods, the second extended recovery rest period is extended to 60 hours.

DELAYED REPORTING

The operator may delay the reporting time in the event of unforeseen circumstances.

Procedures for delayed reporting are established in the operations manual.FDP starts counting at the delayed reporting time.

When the delay is less than 4 hours, the maximum FDP is calculated based on the original reporting time.

When the delay is 4 hours or more, the maximum FDP is calculated based on the MORE LIMITING of the original or the delayed reporting time.

If the reporting time is further amended, the FDP starts counting 1 hour after the second notification or at the original delayed reporting time if this is earlier.

When the operator informs the crew member of a delay of 10 hours or more in reporting time and the crew member is not further disturbed by the operator, such delay of 10 hours or more can counts as a rest period.

CUMULATIVE FLIGHT TIME MAX

100h in 28 consecutive days.

900h in 1 calendar year.

1000h in rolling 12 consecutive months.

CAPTAIN DISCRETION

The maximum basic FDP cannot be increased by more than 2 hours.

The maximum basic daily FDP should be used to calculate the limits of commander’s discretion, if commander’s discretion is applied to an FDP which has been extended.

In augmented crew, the maximum FDP cannot be increased by more than 3 hours.

On the last sector, only after take-off, the flight may continue to the planned destination or alternate aerodrome because of unforeseen circumstances.

The rest period following the FDP may be reduced but can never be less than 10 hours.

The commander shall consult all crew members on their alertness levels before taking a decision.

The commander shall submit a report to the operator. Where the increase of an FDP or reduction of a rest period exceeds 1 hour, a copy of the report shall be sent by the operator to the competent authority not later than 28 days after the event.

The operator shall implement a non-punitive process for the use of the Captain discretion and shall describe it in the operations manual.

CUMULATIVE DUTY TIME MAX

60h in 7 consecutive days.

110h in 14 consecutive days.

190h in 28 consecutive days.

CAPTAIN DISCRETION

The maximum basic FDP cannot be increased by more than 2 hours.

The maximum basic daily FDP should be used to calculate the limits of commander’s discretion, if commander’s discretion is applied to an FDP which has been extended.

In augmented crew, the maximum FDP cannot be increased by more than 3 hours.On the last sector, only after take-off, the flight may continue to the planned destination or alternate aerodrome because of unforeseen circumstances.

The rest period following the FDP may be reduced but can never be less than 10 hours.The commander shall consult all crew members on their alertness levels before taking a decision.

The commander shall submit a report to the operator. Where the increase of an FDP or reduction of a rest period exceeds 1 hour, a copy of the report shall be sent by the operator to the competent authority not later than 28 days after the event.

The operator shall implement a non-punitive process for the use of the Captain discretion and shall describe it in the operations manual.

BREAK

Means a period of time within a flight duty period, shorter than a rest period, counting as duty and during which a crew member is free of all tasks.

AWAKE TIME

Continuous awake in excess of 18 hrs can reduce the alertness and should be avoided.

ACCOMODATION

Means, for the purpose of standby and split duty, a quiet and comfortable place not open to the public with the ability to control light and temperature, equipped with adequate furniture that provides a crew member with the possibility to sleep, with enough capacity to accommodate all crew members present at the same time and with access to food and drink.

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