Null Orfice,
as I recall there was no way before the incident that the suppliers or the engineers could have known about this relay problem. We had lots of problems. I think that apart from the usual reluctance to properly provision spare parts there was a mind set in MOD that this was a proven mature a/c. Indeed it was but we certainly turned our 66 into one offs by one means or another. The supplied servicing documentation was a mess and in some cases actually misleading. I may bore the readership with the ramp lock problems at a future date. Oh and bunting the a/c to get the cargo door to lock up on airdrop sorties.
It sounds as though we were on 48 at Changi at the same time.