En un momento y ante un escenario en el que la prensa argentina demuestra (otra vez) su pobreza en todos los flancos, veo un artículo muy claro sobre la suerte del San Juan:
(This is informed speculation only, based on the limited available facts) The evidence of a short explosion record by the CTBTO points to one of two causes. Either San Juan suffered some kind of flooding incident and went into an uncontrolled dive, passing through crush depth and the hull imploded due to water pressure. Alternatively an internal explosion, either a torpedo malfunction or batteries, which could have quickly disabled and sunk her. During her last communication which has now been made public, San Juan reported water had entered the vessel through its snorkel, causing “the beginning of a fire” and short circuit in the forward battery which had been dealt with. The submarine was encountering big seas at the time, making it difficult to snorkel or proceed on the surface and she was ordered to make for Mar del Plata submerged, transiting slowly drawing power from the aft battery. This would tend to suggest a sea-water induced battery explosion as a likely cause.
Every navy has discovered, maintaining a credible and safe fleet requires a complex logistics tail and training organisation to keep equipment at people at peak efficiency. Submarine construction, maintenance and training are especially demanding and there are few corners that can be cut without boats becoming a liability.
Accidents are by no means unique to the Argentine navy, the mighty US Pacific fleet has suffered a series of recent fatal catastrophes, primarily due to operational demands being prioritised above training. The RN has also had incidents of its own, although mercifully has not lost a submarine at sea since HMS Affray sank in April 1951 with the loss of 57 lives, probably due to a snorkel problem.
La fuente es inglesa. Las negritas son mías.
Se puede leer completo acá.