GM3 CS FTL.1.205(a)(2) Flight duty period (FDP)

NIGHT DUTIES AND LATE FINISH DUTIES — APPROPRIATE FATIGUE RISK MANAGEMENT (APPROPRIATE FRM)

(a)When rostering night duties, it is critical for the crew member to obtain sufficient sleep before such duties when he or she is adapted to being awake during daytime hours at the local time where he or she is acclimatised. To optimise alertness during night duties, the likelihood of obtaining sleep as close as possible to the start of the FDP should be considered, when rostering rest periods before night duties, by providing sufficient time to the crew member to adapt to being awake during the night. Rostering practices leading to extended wakefulness before reporting for night duties should be avoided. Appropriate fatigue risk management principles and tools that could be applied to the rostering of night duties may include:

(1)avoiding night duties after extended recovery rest periods;

(2)progressively delaying the rostered ending time of the FDPs preceding night duties; and

(3)avoiding the sequence of early starts and night duties.

(b)When rostering late finish duties, sleep deprivation may arise, leading to the onset of fatigue. To optimise crew alertness during late finish duties, the operator should avoid rostering practices that may lead to sleep debt prior to the reporting for late finish duties.

(c)Obtaining sufficient sleep is a shared responsibility between the operator and its crew members.

(1)The operator could implement various measures, such as:

(i)identifying those night duties or late finish duties that are safety critical;

(ii)communicating on the use of available rest facilities at the main base;

(iii)promoting the optimum use of sleep opportunities among their crew, in particular before crew reporting for night duties or late finish duties;

(iv)where possible, providing suitable accommodation at or near the crew reporting point, or use augmented crew.

(2)For crew members, it is important to make optimum use of sleep opportunities, as applicable:

(i)in the afternoon, prior to a night duty;

(ii)prior to a late finish duty;

(iii)during FDPs with in-flight rest;

(iv)during a long turnaround.