PART 9Documents and records
Preservation of records of helicopter flight data recorder233.
(1)
This article applies to a helicopter required to carry a flight data recorder specified in paragraph (1) or (2) of Scale SS of paragraph 5 of Part 1 of Schedule 6.
(2)
Subject to article 238, the operator of such a helicopter must at all times preserve the last eight hours of recording made by the flight data recorder.