A B757 EICAS alerted no cooling and the master caution illuminated on approach. The crew referenced ...

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.

Original NASA ASRS Text

Title: 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.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	958520
Time
Date	201107
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Tower
State Reference	US
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Component
Aircraft Component	Aircraft Cooling System
Person 1
Function	First Officer Pilot Not Flying
Experience	Flight Crew Last 90 Days 240 Flight Crew Total 15000 Flight Crew Type 2000
Events
Anomaly	Aircraft Equipment Problem Critical

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.