The AARB's finding, "the TriStar had ineffective braking on wet runways".
Depends on the specific model.
-1's, -100's, -200's all had OK brakes.
-500's and -250's, because of their higher all up weights, had
superb brakes, that would stop the airplane on the perverbial dime, wet or dry runway.
After landing at ZRH with -500 some years ago, we noticed another airplane enter the runway, downfield, without an ATC clearance.
Getting on the brakes, big time, was required, and the tower remarked....'we've never seen a large jet stop so fast.'