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CVR CB Posn During Towing  
User currently offlineHAWK21M From India, joined Jan 2001, 31808 posts, RR: 55
Posted (10 years 9 months 21 hours ago) and read 2072 times:

Is it Mandatory for Activating the CVR CB during a Mx towing operation from one bay to another parking bay adjacent.
In other words,Everytime the Aircraft is moved [Towed/Taxied] the CVR CB should be in.

Think of the brighter side!
5 replies: All unread, jump to last
User currently offlineAmtrosie From United States of America, joined Jan 2005, 274 posts, RR: 0
Reply 1, posted (10 years 9 months 15 hours ago) and read 2047 times:

Your GMM (operator procedure manual) will dictate towing procedure, including whether or not the CVR C/B needs to be pulled.

User currently offlineAir2gxs From , joined Dec 1969, posts, RR:
Reply 2, posted (10 years 9 months 13 hours ago) and read 2035 times:

Yup, its all operator specific. I've worked for airlines that required the CB, for both CVR and FDR, pulled and I've worked for operators that insist (checklist item) that they are in.

On reflection, in the past ten years or so, as the industry has moved from tape based to digital based recorders, the tendency to pull the CB has gone away. My guess is that since we (maintenance) are not eating into the life of the CVR or FDR recording medium, our operators will insist that the recorders are operative in case of a problem, so the "tapes" can be reviewed.

User currently offlineHAWK21M From India, joined Jan 2001, 31808 posts, RR: 55
Reply 3, posted (10 years 8 months 4 weeks 1 day 21 hours ago) and read 2012 times:

Out here its mandatory.

Think of the brighter side!
User currently offlinePilotaydin From Turkey, joined Sep 2004, 2539 posts, RR: 50
Reply 4, posted (10 years 8 months 4 weeks 1 day 18 hours ago) and read 2007 times:

in the JAA regulations it states that the CVR only needs to be on when the a/c is operating under it's own power...however operators may impose stricter regulations.

The only time there is too much fuel onboard, is when you're on fire!
User currently offlineHAWK21M From India, joined Jan 2001, 31808 posts, RR: 55
Reply 5, posted (10 years 8 months 4 weeks 1 day 15 hours ago) and read 2050 times:

The reason could be to Investigate any Incident occuring.

Think of the brighter side!
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