Aviation By its nature there has been plenty of scrutiny in regards to the R101 disaster with thousands of sources online. The references on the Wikipedia page are a good place to start, which uncludes a link to the official report into the disaster.
The Airship Heritage Trust has a technical explanation for what happened.
In 2009, the original hangars created to house the R101 were put up for sale.
YouTube's BFI channel has a short silent film about the airship's London visit:
There's also this amateur documentary about the sequence of events:
And perhaps most poignantly, a memorial service held in 2010 on the 80th anniversary of the crash.
That anniversary was also marked by an exhibition.