DaveReid and PH-SBE, you are right. There were accidents that were traced back to faulty repairs of previous substantial damage, and I must admit to simplification in my previous post.
However allow me to maintain that an engine failure and also a runway excursion that may have happened earlier in the accident aircrafts history is not entirely the same as a tailstrike that left the rear pressure dome and other vital parts damaged as happened to the two 747.
The point I was trying to make is that technical incidents are a part of day-to-day aircraft operation and do not necessarily leave an aircraft jinxed...