Latest report;
Air Traffic Control offered a circling approach to runway 30 in order to land in a headwind, the crew however declined and elected to land on runway 12 with a tailwind of 14 knots. The captain was pilot flying and used a head up display during the approach. ATC advised, that the runway was wet.
The crew gained visual contact with the runway between 1000 and 700 feet AGL and were not concerned at all with the approach. The aircraft was slightly below maximum landing weight.
The airplane touched down about 4000 feet (1220 meters) down the 8900 feet (2713 meters) long runway 12 at 162 knots ground speed (148 KIAS) in heavy rain and gusting winds and bounced before settling on the runway. Autobrakes engaged, the spoilers extended, the airplane decelerated according to an autobrakes 3 settings, the crew felt however the airplane did not decelerate and applied maximum manual braking. The airplane overran the end of the runway at a ground speed of 63 knots.
The flight data recorder indicated no anomalies with the brakes, spoilers or thrust reversers. The data indicate, deceleration was normal for a wet runway. No mechanical problems with the aircraft have been identified so far.
The ground based equipment (ILS) was checked by a check aircraft and was found working normally.
The investigation still tries to determine why the airplane landed long. Analysis of cockpit voice and flight data recorders is still ongoing. The investigation also focusses on the actual weather at the time of the accident, runway friction tests have been scheduled to start Jan 6th. Tyres, brakes and several other parts are being sent to the US for closer examination, the wreckage will also be moved to the US into a NTSB hangar though remaining under control of the Jamaican CAA.