I did know that
It was very similar to the much more well known JAL 747 SR crash in 1985. also caused by rear bulkhead failure.
My late uncle, who was a technical instructor at Aer Lingus in the 1960s and 1970s, always told me that he had a strong suspicion that the loss of the Aer Lingus Viscount in 1968 off Tuskar Rock might also have been caused by a similar failure. There is evidence that at least one tailplane failed prior to the accident. An elevator trim tab was found on a County Wexford beach and it showed no sign that it had been immersed in sea water. The implication being that it fell off the Viscount before it crossed the coastline.
The Vanguard bulkhead failure was caused by corrosion from the rear toilets. The Viscount was very similar to the Vanguard in the way this area was constructed so could have suffered a similar fate.