Quote:
Originally Posted by Sehnsucht
Did it pass the 4 point air brake safety check during the pre-trip inspection?
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The bus obviously has a intermittent problem if such a large leak was present the moment he started the bus he would have NEVER had enough air pressure to release the park brake.
It is very possible to pass the air brake test and then a mile down the road a valve stick open and cause a big pressure drop even with a perfectly good compressor.