ES,
That was an account heard from from someone on Invincible, which is slightly misleading as this would place AC on Hermes starboard quarter. Doubtless the whole task group would close up to action stations and lay chaff for deception on receipt of a Handbrake racket. AC of course had no chaff and was allegedly hit by an Exocet which was itself seduced by Yarmouth's chaff pattern. The account of this AC attack is quite confused and in some cases contradictory. Good news that your CSB survived intact though! I guess it tasted even better after. Invincible launched 6 Sea Dart in 90 seconds during the attack at a target later assessed as Hermes first chaff pattern, which shows how confusing the attack was. This was a well planned and well executed attack by the Argentine navy. I am working on a creating a full time line for this attack in due course.
The BoI report is
here.
However it is also inaccurate in some respects, believing that AC was hit by two missiles, when their is no evidence of this.
The Am39s used by the Argentines were export models and had a less sophisticated centroid homing seeker than the NATO spec weapon. Regardless, they worked well against large undefended targets.