I think he's referring to the other American 3-engined widebody - the DC-10. Specifically, the failed cargo door latch design that caused a dangerous but not fatal incident with American Airlines Flight 96 in 1972, and an unfortunately catastrophic fatal crash of Turkish Airlines 981 in 1974.
Specifically, in the original design, the door could be forced "shut" in such a way that the locking pins didn't engage - but to the baggage handler / operator, felt closed. In both cases, the cargo door blew off, and in the resulting decompression, severed cables to control surfaces and engines.
In the Turkish Airlines case, the pins were filed down a few mm by ground crew to ease interference on closing the cargo door. The result was that the locking pins were not properly securing the door, even though the sensor was showing closed, and 8 minutes into the flight, the door blew out, severing all control cables running aft of the door, the pilots losing all control immediately. All hands lost on that flight 72 seconds later.
Back to the CS L-1011 - it's nice - I may have to pick that one up on sale some day. Is it heavy on FPS? The CS 737 I bought last year is utterly useless to me even on my newer computer, and understand the 707 is similar. Not sure if it comes in Cathay Pacific old colours - but that'd be scheme of choice.
cheers,
dl