No person must conduct a take-off in a helicopter for which a minimum equipment list has not been approved and the helicopter has instruments and equipment that are not serviceable or that have been removed unless-
- where the unserviceable instrument or equipment is not removed from the helicopter, it is isolated or secured so as not to constitute a hazard to any other helicopter system or to any person on board the helicopter;
- the appropriate placards are installed as required by the maintenance control manual; and
(c) an entry recording the actions is made in the flight folio, as applicable.