Volcanic Ash Advisory System
The volcanic activity of Mt Ruapehu had significant impact on civil aviation in New Zealand during 1995 and 1996. Many flights were cancelled and many more diverted or re-routed. These episodes were the first impact of volcanic ash on modern aviation in New Zealand. After significant development work and the implementation of a targeted volcanic ash information system, the Civil Aviation Authority of New Zealand (CAA) now recognises the aviation industry's ability to manage its operations in proximity to volcanic ash without operational CAA intervention as was previously the case. The Volcanic Ash Advisory System (VAAS) is provided through the operational interaction of aircraft operators, air traffic management, meteorological services and the geological science agency. The CAA's responsibility is now one of facilitation and oversight.
Living with Volcanic Ash Episodes in Civil Aviation
Contact details:
Peter Lechner
Civil Aviation Authority of New Zealand
P O Box 31 441
Lower Hutt 5040
New Zealand
Email: lechnerp@caa.govt.nz
Tel: + 64 4 560 9593
Cell : + 64 275 236186
Fax: + 64 4 569 2024

