B757-200
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Flight Crew Returned To Departure Airport; General Maintenance Action
Aircraft; Weather
[We] encountered numerous EICAS Warnings; Cautions; and Advisories along with several status messages all of which were unrelated to one another. Suspected water in Electronic Compartment and returned to airport. [We] landed at 205;100 LBS.Maintenance found evidence of water in Electronic Compartment; possibly from pallets loaded on main cargo deck. Airport had rain in the early evening but it was not raining when crew showed for flight.
[No substantive additional information was provided in the secondary narrative.]
A B757-200 flight crew; suspecting water in the Electronics Compartment due to heavy rains during the aircraft's layover; returned to its departure airport when multiple unrelated EICAS Warnings; Cautions Status and Advisories messages were displayed shortly after takeoff.