Page 14

SAFETY

ACI Safety and Technical Affairs continues work with ICAO Aerodrome Reference Code Task Force, progress made By Nicholas Ratledge, Manager, Airport Safety & Operations, ACI World From 31 May to 2 June 2016, ACI and members from Airbus, Boeing, France, Germany, Japan, Switzerland, and IFALPA participated in the ICAO Task Force on the Aerodrome Reference Code in Annex 14. The meeting was held in Seal Beach, California with the member from Boeing hosting the team. The first order of business focused on the aerodrome reference code itself, or as it is better known, Table 1-1 of Annex 14. There has been confusion between the aeroplane reference field length and the actual aerodrome field length, with the former being one of the two main parameters of Annex 14. A new performance-based measure, approach speed, is being considered as a new code element (following FAA and Transport Canada), and this needs to be evaluated further. However, a major change being proposed at this

14

JULY 2016

stage is to remove outer main gear wheel span (OMGWS) from Table 1-1, leaving just reference field length (code number) and wingspan (code letter), and using OMGWS only in the sections where it is applicable (e.g., for runway and taxiway width). The group brought forward evidence to support a reduction of minimum runway widths. Back in the early 1990s, the 60m runway width for Code E and F aircraft was based on an expected OMGWS for new large aircraft of 18m. Today, the largest OMGWS is 14.3m (A380). Based on discussion with the aircraft manufacturers, there is no plan to exceed an OMGWS of 15m in the next 20 years. Using the evidence brought forward, it showed that such aircraft (with a maximum 15m OMGWS) can use a 45m wide runway safely. For runway shoulders, the proposal is to retain 60m for code D, E and F, with

Profile for Airports Council International

ACI World Report - July 2016  

ACI World Report - July 2016

ACI World Report - July 2016  

ACI World Report - July 2016

Profile for aciworld