--- title: "NCO.OP.100 – NCO.OP.220: SUBPART B: OPERATIONAL PROCEDURES (Part-NCO) — rule index · Avioverse" description: "NCO.OP.100 – NCO.OP.220, Regulation (EU) No 965/2012. The pilot-in-command shall only use aerodromes and operating sites that are adequate for the type…" url: "https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b" --- # SUBPART B: OPERATIONAL PROCEDURES ANNEX VII (Part-NCO) · Air Operations · Regulation (EU) No 965/2012 · NCO.OP.100 – NCO.OP.220 On this page 1. ## [NCO.OP.100 Use of aerodromes and operating sites](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-100) The pilot-in-command shall only use aerodromes and operating sites that are adequate for the type of aircraft and operation concerned. 2. ## [NCO.OP.101 Altimeter check and settings](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-101) The pilot-in-command shall check the proper operation of the altimeter before each departure. [AMC1 NCO.OP.101(a) Altimeter check and settings](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-101#amc1-nco-op-101-a) 3. ## [NCO.OP.105](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-105) INTENTIONALLY LEFT BLANK 4. ## [NCO.OP.110 Aerodrome operating minima — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-110) For instrument flight rules (IFR) flights, the pilot-in-command shall establish aerodrome operating minima for each departure, destination or alternate… [AMC1 NCO.OP.110 Aerodrome operating minima — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-110#amc1-nco-op-110) [AMC2 NCO.OP.110 Aerodrome operating minima — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-110#amc2-nco-op-110) [AMC3 NCO.OP.110 Aerodrome operating minima — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-110#amc3-nco-op-110) [GM1 NCO.OP.110 Aerodrome operating minima — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-110#gm1-nco-op-110) [GM2 NCO.OP.110 Aerodrome operating minima — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-110#gm2-nco-op-110) [GM3 NCO.OP.110 Aerodrome operating minima — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-110#gm3-nco-op-110) [GM4 NCO.OP.110 Aerodrome operating minima — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-110#gm4-nco-op-110) [GM5 NCO.OP.110 Aerodrome operating minima — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-110#gm5-nco-op-110) [GM1 NCO.OP.110(b)(5) Aerodrome operating minima — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-110#gm1-nco-op-110-b-5) 5. ## [NCO.OP.111 Aerodrome operating minima — 2D and 3D approach operations](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-111) The decision height (DH) to be used for a 3D approach operation or a 2D approach operation flown with the continuous descent final approach (CDFA)… [AMC1 NCO.OP.111 Aerodrome operating minima — 2D and 3D approach operations](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-111#amc1-nco-op-111) [GM1 NCO.OP.111 Aerodrome operating minima — 2D and 3D approach operations](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-111#gm1-nco-op-111) [GM2 NCO.OP.111 Aerodrome operating minima — 2D and 3D approach operations](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-111#gm2-nco-op-111) [GM3 NCO.OP.111 Aerodrome operating minima — 2D and 3D approach operations](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-111#gm3-nco-op-111) 6. ## [NCO.OP.112 Aerodrome operating minima — circling operations with aeroplanes](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-112) The MDH for a circling approach operation with aeroplanes shall not be lower than the highest of: [GM1 NCO.OP.112 Aerodrome operating minima — circling operations with aeroplanes](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-112#gm1-nco-op-112) [GM2 NCO.OP.112 Aerodrome operating minima — circling operations with aeroplanes](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-112#gm2-nco-op-112) 7. ## [NCO.OP.113 Aerodrome operating minima – onshore circling operations with helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-113) The MDH for an onshore circling operation with helicopters shall not be lower than 250 ft and the meteorological visibility not less than 800 m. 8. ## [NCO.OP.115 Departure and approach procedures – aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-115) The pilot-in-command shall use the departure and approach procedures established by the State of the aerodrome, if such procedures have been published… [AMC1 NCO.OP.115 Departure and approach procedures — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-115#amc1-nco-op-115) 9. ## [NCO.OP.116 Performance-based navigation – aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-116) The pilot-in-command shall ensure that, when PBN is required for the route or procedure to be flown: [AMC1 NCO.OP.116 Performance-based navigation – aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-116#amc1-nco-op-116) [AMC2 NCO.OP.116 Performance-based navigation – aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-116#amc2-nco-op-116) [AMC3 NCO.OP.116 Performance-based navigation – aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-116#amc3-nco-op-116) [AMC4 NCO.OP.116 Performance-based navigation – aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-116#amc4-nco-op-116) [AMC5 NCO.OP.116 Performance-based navigation – aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-116#amc5-nco-op-116) [AMC6 NCO.OP.116 Performance-based navigation – aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-116#amc6-nco-op-116) [AMC7 NCO.OP.116 Performance-based navigation – aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-116#amc7-nco-op-116) [AMC8 NCO.OP.116 Performance-based navigation – aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-116#amc8-nco-op-116) [GM1 NCO.OP.116 Performance-based navigation – aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-116#gm1-nco-op-116) 10. ## [NCO.OP.120 Noise abatement procedures](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-120) The pilot-in-command shall take into account published noise abatement procedures to minimise the effect of aircraft noise while ensuring that safety has… 11. ## [NCO.OP.125 Fuel/energy and oil supply](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-125) The pilot-in-command shall ensure that the quantity of fuel/energy and oil that is carried on board is sufficient, taking into account the meteorological… [AMC1 NCO.OP.125(b) Fuel/energy and oil supply](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-125#amc1-nco-op-125-b) [AMC2 NCO.OP.125(b) Fuel/energy and oil supply](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-125#amc2-nco-op-125-b) [AMC3 NCO.OP.125(b) Fuel/energy and oil supply](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-125#amc3-nco-op-125-b) [GM1 NCO.OP.125(b) Fuel/energy and oil supply](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-125#gm1-nco-op-125-b) [GM2 NCO.OP.125(b) Fuel/energy and oil supply](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-125#gm2-nco-op-125-b) 12. ## [NCO.OP.130 Passenger briefing](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-130) The pilot-in-command shall ensure that before or, where appropriate, during the flight, passengers are given a briefing on emergency equipment and… [AMC1 NCO.OP.130 Passenger briefing](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-130#amc1-nco-op-130) 13. ## [NCO.OP.135 Flight preparation](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-135) Before commencing a flight, the pilot-in-command shall ascertain by every reasonable means available that the space-based facilities, ground and/or water… [AMC1 NCO.OP.135(a) Flight preparation](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-135#amc1-nco-op-135-a) 14. ## [NCO.OP.140 Destination alternate aerodromes — aeroplanes](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-140) For IFR flights, the pilot-in-command shall specify at least one destination alternate aerodrome in the flight plan, unless the available current… 15. ## [NCO.OP.141 Destination alternate aerodromes — helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-141) For IFR flights, the pilot-in-command shall specify at least one destination alternate aerodrome in the flight plan, unless the available current… 16. ## [NCO.OP.142 Destination alternate aerodromes — instrument approach operations](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-142) The pilot-in-command shall only select an aerodrome as a destination alternate aerodrome if either: [AMC1 NCO.OP.142(b)(1) Destination alternate aerodromes — instrument approach operations](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-142#amc1-nco-op-142-b-1) [AMC2 NCO.OP.142(b)(3) Destination alternate aerodromes — instrument approach operations](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-142#amc2-nco-op-142-b-3) [GM1 NCO.OP.142(b)(4) Destination alternate aerodromes — instrument approach operations](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-142#gm1-nco-op-142-b-4) [AMC1 NCO.OP.142(b)(5) Destination alternate aerodromes — instrument approach operations](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-142#amc1-nco-op-142-b-5) 17. ## [NCO.OP.143 Destination alternate aerodromes planning minima — aeroplanes](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-143) An aerodrome shall not be specified as a destination alternate aerodrome unless the available current meteorological information indicates, for the… [GM1 NCO.OP.143 Destination alternate aerodromes planning minima — aeroplanes](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-143#gm1-nco-op-143) 18. ## [NCO.OP.144 Destination alternate aerodromes planning minima — helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-144) An aerodrome shall not be specified as a destination alternate aerodrome unless the available current meteorological information indicates, for the… [GM1 NCO.OP.144 Destination alternate aerodromes planning minima — helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-144#gm1-nco-op-144) 19. ## [NCO.OP.145 Refuelling with passengers embarking, on board or disembarking](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-145) The aircraft shall not be refuelled with aviation gasoline (AVGAS) or wide-cut type fuel or a mixture of these types of fuel, when passengers are… [AMC1 NCO.OP.145 Refuelling with passengers embarking, on board or disembarking](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-145#amc1-nco-op-145) 20. ## [NCO.OP.147 Refuelling with engine(s) and/or rotors turning – helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-147) Refuelling with engine(s) and/or rotors turning shall only be conducted if all those conditions are met simultaneously: [AMC1 NCO.OP.147 Refuelling with the engine(s) running and/or rotors turning — helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-147#amc1-nco-op-147) [GM1 NCO.OP.147 Refuelling with the engine(s) running and/or rotors turning — helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-147#gm1-nco-op-147) 21. ## [NCO.OP.150 Carriage of passengers](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-150) The pilot-in-command shall ensure that, prior to and during taxiing, take-off and landing, and whenever deemed necessary in the interest of safety, each… 22. ## [NCO.OP.155 Smoking on board](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-155) The pilot-in-command shall not allow smoking on board: whenever considered necessary in the interest of safety; 23. ## [NCO.OP.160 Meteorological conditions](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-160) The pilot-in-command shall only commence or continue a VFR flight if the latest available meteorological information indicates that the meteorological… [AMC1 NCO.OP.160 Meteorological conditions](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-160#amc1-nco-op-160) [GM1 NCO.OP.160 Meteorological conditions](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-160#gm1-nco-op-160) [GM2 NCO.OP.160 Meteorological conditions](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-160#gm2-nco-op-160) 24. ## [NCO.OP.165 Ice and other contaminants – ground procedures](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-165) The pilot-in-command shall only commence take-off if the aircraft is clear of any deposit that might adversely affect the performance or controllability… 25. ## [NCO.OP.170 Ice and other contaminants – flight procedures](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-170) The pilot-in-command shall only commence a flight or intentionally fly into expected or actual icing conditions if the aircraft is certified and equipped… [GM1 NCO.OP.170(b) Ice and other contaminants – flight procedures](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-170#gm1-nco-op-170-b) 26. ## [NCO.OP.175 Take-off conditions](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-175) Before commencing take-off, the pilot-in-command shall be satisfied that: [AMC1 NCO.OP.175 Take-off conditions](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-175#amc1-nco-op-175) 27. ## [NCO.OP.180 Simulated situations in flight](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-180) The pilot-in-command shall, when carrying passengers or cargo, not simulate: 28. ## [GM1.NCO.OP.180 Simulated situations in flight](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/gm1-nco-op-180-simulated-situations-in-flight) DESIGNATION OF PERSONS AS CREW MEMBERS (a) The operator may designate any person as a crew member (including a task specialist) provided that: 29. ## [NCO.OP.185 In-flight fuel/energy management](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-185) The pilot-in-command shall monitor the amount of usable fuel/energy remaining on board to ensure that it is protected and not less than the fuel/energy… [GM1 NCO.OP.185(b) &(c) In-flight fuel/energy management](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-185#gm1-nco-op-185-b) 30. ## [NCO.OP.190 Use of supplemental oxygen](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-190) The pilot-in-command shall ensure that all flight crew members engaged in performing duties essential to the safe operation of an aircraft in flight use… [AMC1 NCO.OP.190(a) Use of supplemental oxygen](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-190#amc1-nco-op-190-a) [GM1 NCO.OP.190 Use of supplemental oxygen](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-190#gm1-nco-op-190) [GM2 NCO.OP.190 Use of supplemental oxygen](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-190#gm2-nco-op-190) 31. ## [NCO.OP.195 Ground proximity detection](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-195) When undue proximity to the ground is detected by the pilot-in-command or by a ground proximity warning system, the pilot-in-command shall take… 32. ## [NCO.OP.200 Airborne collision avoidance system (ACAS II)](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-200) When ACAS II is used, operational procedures and training shall be in accordance with Regulation (EU) No 1332/2011. 33. ## [NCO.OP.205 Approach and landing conditions — aeroplanes](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-205) Before commencing an approach to land, the pilot-in-command shall be satisfied that: [AMC1 NCO.OP.205 Approach and landing conditions – aeroplanes](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-205#amc1-nco-op-205) [GM1 NCO.OP.205 Approach and landing conditions — aeroplanes](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-205#gm1-nco-op-205) 34. ## [NCO.OP.206 Approach and landing conditions — helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-206) Before commencing an approach to land, the pilot-in-command shall be satisfied that: [AMC1 NCO.OP.206 Approach and landing conditions — helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-206#amc1-nco-op-206) 35. ## [NCO.OP.207 Approach and landing conditions – gyroplanes](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-207) Before commencing an approach to land, the pilot-in-command shall be satisfied that, according to the information available, the weather at the aerodrome… [AMC1 NCO.OP.207 Approach and landing conditions — gyroplanes](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-207#amc1-nco-op-207) 36. ## [NCO.OP.210 Commencement and continuation of approach — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-210) If the controlling RVR for the runway to be used for landing is less than 550 m (or any lower value established in accordance with an approval under… [AMC1 NCO.OP.210 Commencement and continuation of approach — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-210#amc1-nco-op-210) [AMC2 NCO.OP.210 Commencement and continuation of approach — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-210#amc2-nco-op-210) [GM1 NCO.OP.210 Commencement and continuation of approach — aeroplanes and helicopters](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-210#gm1-nco-op-210) 37. ## [NCO.OP.220 Airborne collision avoidance system (ACAS II)](https://avioverse.aero/regulations/easa/air-ops/part-nco/subpart-b/nco-op-220) When ACAS II is used, pilot-in-command shall apply the appropriate operational procedures and be adequately trained. 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. Share [LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Favioverse.aero%2Fregulations%2Feasa%2Fair-ops%2Fpart-nco%2Fsubpart-b)[X](https://twitter.com/intent/tweet?url=https%3A%2F%2Favioverse.aero%2Fregulations%2Feasa%2Fair-ops%2Fpart-nco%2Fsubpart-b\&text=SUBPART%20B%3A%20OPERATIONAL%20PROCEDURES%20%E2%80%94%20Air%20OPS)