Investigators probing the overrun that destroyed a Boeing 747-400F at Halifax have highlighted the contribution of poorly-presented NOTAM information to the accident. The safety hazard posed by complex and cluttered NOTAMs is an issue being tackled by an ICAO campaign initiated earlier this year. The Transportation Safety Board of Canada says the Sky Lease Cargo crew received 98 NOTAMs before departing Chicago O'Hare for Halifax. Thirty-seven of these NOTAMs concerned Halifax, and 22 were about runway 05/23, referring to unserviceable navigation aids, runway lighting, and a displaced threshold owing to work in progress. Ten of the 22 runway NOTAMs contained repeated information with modifications but had to be compared with the previous version in order to identify any differences.
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