AMC1 ACNS.C.PBN.640 RNP AR departures

• ED Decision 2019/011/R found in: GM Remote Aerodrome Air Traffic Services (ED 2019/004/R) Issue 2 (Jul 2020)

AMC1 ACNS.C.PBN.640 RNP AR departures ED Decision 2019/011/R With reference to (c), when the RNP AR DP requires a close-in turn at or just beyond the DER, retraction of the landing gear and flaps during the take-off sequence and subsequent rapid acceleration to en-route climb airspeed may compromise the RNP system’s ability to conduct accurate turn anticipation for the close-in turns, possibly resulting in the aircraft’s inability to comply with the defined turn (i.e. overshoot a close-in RF turn). Limiting the airspeed for the initial phase of the departure can help ensure the RNP system’s turn anticipation calculations are accurate. With reference to (e), if the aircraft requires the flight crew to conduct a manual INS position update immediately prior to take-off, the applicant should provide procedures requiring the air crew to conduct the position update within 300 meter (1 000 ft) of the start point of the aircraft’s take-off roll. [Issue: CS-ACNS/2]