Draft ICAO Circular on NLA.pdf - Airports Council International

<strong>ICAO</strong> Version 4.1 — 15 March 2004
Chapter 5
AIRCRAFT OPERATIONS
5.1 AIR OPERATOR CERTIFICATION
5.1.1 Annex 14 — Aerodromes, Volume I — Aerodrome Design and Operations, paragraph 3.1.9
recommends a runway width of 60 m for code F aeroplanes, and paragraph 3.2.3 specifies 75 m overall width
of runway and shoulders. For code E aeroplanes, the recommended runway width is 45 m, and the overall
width of the runway and shoulders is 60 m.
5.1.2 Compliance with Annex 8 — Airworthiness of Aircraft, requires the manufacturer to
demonstrate that the aeroplane is controllable within the runway to be used. Annex 8 — Airworthiness of
Aircraft, Part III B, Sub-part B. Flight, B.2.5 Take-off requires an aeroplane to be capable of taking off
assuming the critical engine to fail, the remaining engines being operated within their take-off power or thrust
limitations. Standard B.3.2.2 Controllability on the ground (or water) requires the aeroplane to be
controllable on the ground (or on the water) during taxiing, take-off and landing under the anticipated
operating conditions. Standard B 3.2.3 requires the aeroplane to be controllable in the event of sudden failure
of the critical engine at any point in the take-off, when the aeroplane is handled in the manner associated with
the scheduling of take-off paths and accelerate-stop distances. It is understood that during the type
certification process, consideration is given to the following criteria separately and, where appropriate, in
combination:
— maximum crosswind component
— runway surface (dry, wet, contamination)
— failure conditions including sudden engine failure
— critical aeroplane loading (gross weight, center of gravity)
— autoland operations, when applicable
The manufacturer will provide in the flight manual, information on minimum runway width and the critical
crosswind component under all anticipated operating conditions as defined in Annex 8, Part I — Definitions.
5.1.3 During air operator certification, the State of the Operator will need to review the availability
of the facilities and services specified in Annex 14, Volume I, and may need to consider specific alternative
measures, operational procedures and operating restrictions referred to in Chapter 4 of this <strong>Circular</strong>, to
preserve a level of safety acceptable to the State of the Operator in the event that the provisions of Annex 14,
Volume I cannot be fully complied with. While establishing these alternative measures, operational
procedures and operating restrictions, States should review the information in the flight manual regarding
minimum runway width and critical crosswind component under all anticipated operating conditions.
5.1.4 Normal requirements concerning operators’ emergency evacuation demonstrations apply to
NLAs. However, because of the number of passengers carried by NLAs and the height of the upper deck
exits above the ground, special precautions may be needed to minimize the risk of passenger injuries likely
to occur during the conduct of emergency evacuation demonstrations required for operator certification.