--- title: "CAT.GEN.MPA.100 Crew responsibilities — Part-CAT · Avioverse" description: "The crew member shall be responsible for the proper execution of his or her duties that are:" url: "https://avioverse.aero/regulations/easa/air-ops/part-cat/subpart-a/cat-gen-mpa-100" --- # CAT.GEN.MPA.100 Crew responsibilities ANNEX IV (Part-CAT) · Regulation (EU) No 965/2012 · EAR revision 27 Mar 2026 IR Implementing rule ## CAT.GEN.MPA.100 Crew responsibilities (a) The [crew member](https://avioverse.aero/glossary/easa/crew-member) shall be responsible for the proper execution of his or her duties that are: (1) related to the safety of the [aircraft](https://avioverse.aero/glossary/easa/aircraft) and its occupants; and (2) specified in the instructions and procedures in the operations manual. (b) The crew member shall: (1) report to the commander any fault, failure, malfunction or defect which the crew member believes may affect the airworthiness or safe operation of the aircraft including emergency systems, if not already reported by another crew member; (2) report to the commander any incident that endangered, or could have endangered, the safety of the operation, if not already reported by another crew member; (3) comply with the relevant requirements of the operator’s occurrence reporting schemes; (4) comply with all flight and [duty](https://avioverse.aero/glossary/easa/duty) time limitations (FTL) and rest requirements applicable to their activities; (5) when [undertaking](https://avioverse.aero/glossary/easa/undertaking) duties for more than one operator: (i) maintain his or her individual records regarding flight and duty times and rest periods as referred to in the applicable FTL requirements; (ii) provide each operator with the data needed to schedule activities in accordance with the applicable FTL requirements; and (iii) provide each operator with the data needed regarding operations on more than one type or variant. (c) The crew member shall not perform duties on an aircraft: (1) when under the influence of [psychoactive substances](https://avioverse.aero/glossary/easa/psychoactive-substances) or when unfit due to injury, fatigue, medication, sickness or other similar causes; (2) until a reasonable time period has elapsed after deep water diving or following blood donation; (3) if applicable medical requirements are not fulfilled; (4) if he or she is in any doubt of being able to accomplish his or her assigned duties; or (5) if he or she knows or suspects that he or she is suffering from fatigue as referred to in Annex V, point 7.6, to Regulation (EU) 2018/1139 or feels otherwise unfit, to the extent that the flight may be endangered. IR · CAT.GEN.MPA.100 — Regulation (EU) No 965/2012 · Regulation (EU) 2021/2237 · Air OPS Easy Access Rules · EAR revision 27 Mar 2026 AMC Acceptable means of compliance ## AMC1 CAT.GEN.MPA.100(b) Crew responsibilities COPIES OF REPORTS Where a written report is required, a copy of the report should be communicated to the commander concerned unless the terms of the operator’s reporting schemes prevent this. AMC · AMC1 CAT.GEN.MPA.100(b) — Regulation (EU) No 965/2012 · ED Decision 2014/015/R · Air OPS Easy Access Rules · EAR revision 27 Mar 2026 AMC Acceptable means of compliance ## AMC1 CAT.GEN.MPA.100(c)(1) Crew responsibilities ALCOHOL CONSUMPTION The operator should issue instructions concerning the consumption of alcohol by crew members. The instructions should be not less restrictive than the following: (a) no alcohol should be consumed less than 8 hours prior to the specified reporting time for a flight [duty period](https://avioverse.aero/glossary/easa/duty-period) or the commencement of [standby](https://avioverse.aero/glossary/easa/standby); (b) the blood alcohol level should not exceed the lower of the national requirements or 0.2 per thousand at the start of a flight duty period; (c) no alcohol should be consumed during the flight duty period or whilst on standby. AMC · AMC1 CAT.GEN.MPA.100(c)(1) — Regulation (EU) No 965/2012 · ED Decision 2014/015/R · Air OPS Easy Access Rules · EAR revision 27 Mar 2026 GM Guidance material ## GM1 CAT.GEN.MPA.100(c)(2) Crew responsibilities ELAPSED TIME BEFORE RETURNING TO FLYING [DUTY](https://avioverse.aero/glossary/easa/duty) 24 hours is a suitable minimum length of time to allow after normal blood donation or normal recreational (sport) diving before returning to flying duties. This should be considered by operators when determining a reasonable time period for the guidance of crew members. PART-MED Information on the effects of medication, drugs, other treatments and alcohol can be found in Annex IV (Part-MED) to Commission Regulation (EU) No 1178/2011. GM · GM1 CAT.GEN.MPA.100(c)(2) — Regulation (EU) No 965/2012 · ED Decision 2014/015/R · Air OPS Easy Access Rules · EAR revision 27 Mar 2026 [All rules in SUBPART A: GENERAL REQUIREMENTS](https://avioverse.aero/regulations/easa/air-ops/part-cat/subpart-a) Consolidated from the EASA Easy Access Rules (revision 27 Mar 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.