Off thread a bit:
I was on a long detachment to the Far East on Valiant tankers. On landing our aircraft XD 814 was due for a Minor Servicing so on shutdown it was towed into the hangar. There was a sudden panic and another aircraft on the detachment, XD 815, was towed in the other end accompanied by a HM Customs Rummage Crew.
The were there for about four hours supervising out ground crew taking off every panel and checking every orifice. Finding nothing they departed.
Once around the corner XD 814 exploded!