Hi All.
Growler I think you are getting mixed up with the QAR system. (Which is not mandatory)
Some airlines have QAR tapes which record far more parameters than an ADR could record (depending upon type), but would never survive a crash, not being mandatory. Quick access recording info is used for a/c condition and operation monitoring (any big airways types will know it links to sesma, for example).
Regards
[This message has been edited by spanners (edited 15 April 2000).]
[This message has been edited by spanners (edited 15 April 2000).]