A B757 EICAS alerted NO COOLING and the Master Caution illuminated on approach. The crew referenced the QRH but continued the approach and while taxiing to the gate the equipment cooling horn sounded.

Narrative

At approximately 2;000 FT Master Caution illuminated with no cooling EICAS. We were already operating in the override position of the equipment cooling due to a previous problem that happened during the flight. The aircraft had been previously written up with the same write-up many times. Before we started the approach we both looked over the irregular checklist in regard to what to do if our equipment cooling irregularity became worse. When the light came on we both agreed to continue the approach and land. Captain went slightly high on glideslope and landed in the touchdown zone but toward the end of it on speed. Once off runway we cleaned up the aircraft and ran the No Cooling irregular checklist. No cooling warning horn went off as we taxied to the gate. [We] then got hot brakes [and] ran irregular checklist for hot brakes. Once at gate Maintenance was not available to meet aircraft for over an hour. Chocked plane released brakes. Captain elected to stay with the aircraft until Maintenance showed up in order to protect plane incase equipment cooling issue got worse. He also turned the aircraft dark in order to get the warning horn to stop and take possible heat out of equipment cooling bay.