Navigate / EASA

CS MMEL.140 Level of safety

ED Decision 2014/004/R

The MMEL items are prepared to ensure that an acceptable level of safety as intended by the applicable requirements is maintained taking into account the following factors:

(a)     reduction of aircraft functional capabilities and/or safety margins;

(b)     change in crew workload and/or degradation in crew efficiency;

(c)      consequence(s) to the aircraft and its occupants of the next failure(s) having the worst safety-related impact on the aircraft’s take-off, continued flight and landing when dispatching in a known degraded configuration;

(d)     consequence(s) to the aircraft and its occupants of the next external event(s) for which the item was designed to protect against, if applicable.