ATPL: In accordance with OPS 1, an operator shall ensure that all relevant operational and technical information for a individual flight is preserved on ground for a predetermined period of time. Consequently, if practicable, a copy of the operational flight plan shall be retained, during at least:

Explanation: In accordance with OPS 1, an operator shall ensure that all relevant operational and technical information for a individual flight is preserved on ground for a predetermined period of time. Consequently, if practicable, a copy of the operational flight plan shall be retained, during at least: