Originally Posted by
Airbubba
You may have a point. This may well be a reportable incident for the FAA even if the aircraft didn't move for the purpose of flight. Should the crew have pulled the CVR circuit breaker? Did they? It might depend on what is in Republic's ops manual. And often this conflicts with guidance in the other manuals like the ones that the United gate agents have.
Originally Posted by
BluSdUp
There is nothing on the CVR after two hrs.
It designed to erase after 2 hrs, always.
Originally Posted by
unworry
How is it plausible that the E170's CVR from the 9th could have been over-written already ... ?
I find this claim from a less reputable forum a little hard to believe, but will stand corrected.
Originally Posted by
DaveReidUK
Most modern solid-state CVRs store 2 hours of recording.
Given that the aircraft in question flew (eventually) to Louisville, and then the following day operated 4 sectors with a total scheduled block time of over 8 hours, it seems perfectly reasonable to expect it to have been long since overwritten.
Originally Posted by
Jet Jockey A4
On the CVR discussion I don't think they could use it and not because of the 2 hour loop.
I don't know how it works on this type of aircraft but if it is sitting at the gate, door opened is the CVR actually recording?
On some aircraft I have flown for the CVR to start recording the door must be closed and the beacon to be "ON", on some others it starts recording only on engine start up.
Originally Posted by
slats11
So a pax injured to the point of requiring hospital treatment while on board a flight - albeit plane parked at gate. If the CVR could shed any light on the events leading up to the incident, should not the CVR have been quarantined?
I'm pretty sure his aviation lawyers will know the 2 hour limit. But this "discovery" will add a bit more intrigue and public interest.
For several years after the two-hour CVR recording rule went into effect (after opposition from ALPA and the Regional Airline Association) our manuals still had the boilerplate phrase about a 30 minute recording.
And, I thought engines had to be running or at least the beacon needed to be on for the CVR to record but it turns out, on some planes at least, it runs whenever there is power on the aircraft. It's solid state so there is no tape to wear out, but still, this was news to me.
The PSA CRJ-200 overrun into the EMAS at CRW in 2010 had the crew doing a shutdown checklist but getting interrupted by communications before they could pull the CVR breaker. The NTSB CVR transcript has a call to the union rep and other conversation that in the past would be deemed 'non-pertinent' or privileged. As with the Comair crash at LEX, these guys were shucking and jiving and not maintaining a sterile cockpit on taxi out so that initial part of the recording is definitely relevant to the mishap. But, the harvesting of conversation about commuting, fatigue and other stuff we talk about up front seems to me to be increasing in the NTSB's recent airline accident reports.
If anything is found on the CVR in this ORD case, will it be admissible in a lawsuit proceeding?
I don't claim to know.