ATPL: According to the recommended noise abatement procedures contained in the ICAO PANS OPS 8168 Volume I part V, data available indicates that the procedure which results in noise relief during the part of the procedure close to the airport:
Domanda 137, Operational Procedures - ATPL - Airline Transport Pilot license
| Is NAD procedure 2 |
| Is NAD procedure 1 |
| Depends on the wind component |
| Is either procedure 1 or 2, because there is no difference in noise distribution |
