Talk:Technical investigation of the Lac-Mégantic rail disaster

air-brakes
Independent air brakes leaked off: With all the locomotives shut down, the air compressor no longer supplied air to the air brake system. As air leaked from the brake system, the main air reservoirs were slowly depleted, gradually reducing the effectiveness of the locomotive air brakes.

Does anybody have any evidence that the brakes operated in this fashion.

Do not air brakes need air for release and not application!!!!!!!!!!!!!!--Petebutt (talk) 07:50, 17 September 2015 (UTC)