Timeline for How to find black boxes underwater absent any pinger signals?
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 14, 2019 at 11:14 | comment | added | Juan Jimenez | And now, as I suspected would happen, the CVR has been found, under 8 meters (26 ft) of mud. edition.cnn.com/2019/01/14/asia/… | |
| Dec 12, 2018 at 14:17 | comment | added | Juan Jimenez | @summerrain The search effort proves no such thing. it only proves that they could not find that CVR. Even the Indonesian authorities at Basarnas admit that the CVR can be found with the pinger if sea currents wash away at least some of the mud. You are wrong about this as well: "This always happens after a couple of weeks when the pinger batteries have died". Modern CVR's have enough battery power for 30 days, not 2 weeks. You seem to have some axe to grind. Do you work for Lion Ar, or are you related to anyone who was in the aircraft when it crashed? | |
| Dec 11, 2018 at 17:51 | comment | added | summerrain | Please delete or provide evidence for your claim that "the pinger can be detected when a CVR is buried under mud". The search effort quoted in my question show that this is false. | |
| Dec 11, 2018 at 17:46 | comment | added | summerrain | I repeat, this question is about the case where NO pinger signal is emitted AND/OR detected! This always happens after a couple of weeks when the pinger batteries have died and can also happen already on day 1 for a multitude of reasons. | |
| Dec 11, 2018 at 15:32 | comment | added | Juan Jimenez | To clarify, what happens when the CVR is buried is that the ping can only be heard if you are very close to the source. That's why traditional listening methods when searching for the CVR don't work if the CVR is buried. | |
| Dec 10, 2018 at 10:53 | comment | added | Juan Jimenez | In re: the educated guess, my answer explains itself. As to the lack of pinger signal, I read the question, I am a pilot and have worked for major airlines, I know what i am talking about and I know what you meant. The pinger is not difficult to detect in water. The sound of the pinger carries for a great distance. But sound does not carry well in mud. | |
| Dec 9, 2018 at 18:50 | comment | added | summerrain | re: "That's why they have pingers" : please note that the question was about cases WITHOUT pinger signal (malfunction, dead batteries, signal not detectable because CVR is covered by aircraft debris, etc.). From the same source: "The locator ping signal, believed to originate from the CVR, had died down, possibly the CVR is covered by mud". Although counter-intuitive, the pinger location is difficult to detect in shallow water. | |
| Dec 9, 2018 at 18:47 | comment | added | summerrain | re: "it should be possible to make an educated guess of the general location of the CVR": If you look at the quote above and click on its link, you will see that the FDR of crashed Lion Air flight 610 was recovered on 1 Nov 2018, but the CVR still has not been found yet. / re: "If it is buried deeper than that it will be difficult to find." --> hence my question | |
| Dec 8, 2018 at 21:14 | history | answered | Juan Jimenez | CC BY-SA 4.0 |