Flight data recorders.

CFR · 2024-01-01 · US · Title 14

(a) Each flight recorder required by the operating rules of Subchapter G of this chapter must be installed so that: (1) It is supplied with airspeed, altitude, and directional data obtained from sources that meet the accuracy requirements of §§ 27.1323, 27.1325, and 27.1327 of this part, as applicable; (2) The vertical acceleration sensor is rigidly attached, and located longitudinally within the approved center of gravity limits of the rotorcraft; (3)(i) It receives its electrical power from the bus that provides the maximum reliability for operation of the flight data recorder without jeopardizing service to essential or emergency loads. (ii) It remains powered for as long as possible without jeopardizing emergency operation of the rotorcraft. (4) There is an aural or visual means for preflight checking of the recorder for proper recording of data in the storage medium; (5) Except for recorders powered solely by the engine-driven electrical generator system, there is an automatic means to simultaneously stop a recorder that has a data erasure feature and prevent each erasure feature from functioning, within 10 minutes after any crash impact; and (6) Whether the cockpit voice recorder and digital flight data recorder are installed in separate boxes or in a combination unit, no single electrical failure external to the recorder may disable both the cockpit voice recorder and the digital flight data recorder. (b) Each nonejectable recorder container must be located and mounted

official document · source cfr-2024 · id 14:§ 27.1459