A-06-023
NTSB Safety Recommendation — Aviation
Recommendation text
TO THE FEDERAL AVIATION ADMINISTRATION: Require all operators of aircraft equipped with a cockpit voice recorder (CVR) to (1) test the functionality of the CVR before the first flight of each day as part of an approved aircraft checklist and (2) perform a periodic maintenance check of the CVR as part of an approved maintenance check of the aircraft. The CVR preflight test should be performed according to procedures provided by the CVR manufacturer and should include listening to the recorded signals on each channel to verify that the audio is being recorded properly, is intelligible, and is free from electrical noise or other interference. The periodic maintenance check of the CVR should include an audio test followed by a download and review of each channel of recorded audio. The downloaded recording should be checked for overall audio quality, CVR functionality, and intelligibility. (Supersedes Safety Recommendation A-02-025)
In plain language (FlightFinder summary)
The Federal Aviation Administration is asked to require all operators of aircraft equipped with a cockpit voice recorder (CVR) to perform a daily preflight test of the CVR as part of an approved checklist and a periodic maintenance check of the CVR as part of an approved maintenance check. The preflight test must follow manufacturer procedures and include listening to each channel to verify proper recording, intelligibility, and freedom from electrical noise. The maintenance check should include an audio test and a download and review of each channel to assess audio quality, CVR functionality, and intelligibility.
This plain-language summary is written by FlightFinder to explain the recommendation above. It is not the official wording — the verbatim NTSB text is quoted above.
Details
| Status | Closed - Acceptable Action |
|---|---|
| Mode | Aviation |
| Closed | Dec 12, 2014 |
| NTSB number | DCA04MA030 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).