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The flight station temperature approached 120 degrees fahrenheit following an aircraft malfunction with 1 operating pack. The pilots opened the flight station door to provide cooling air.
| Attributes | |
| ACN | 724475 |
| Time | |
| Date | 200701 |
| Place | |
| Locale Reference | airport : oma.airport |
| State Reference | NE |
| Altitude | msl single value : 34000 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau.artcc tower : mke.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 200 flight time total : 17200 flight time type : 6700 |
| ASRS Report | 724475 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 180 flight time total : 10000 flight time type : 2500 |
| ASRS Report | 724764 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | none taken : anomaly accepted |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
We were dispatched with 1 pack inoperative. The operating pack was putting out extremely hot air into the cockpit. We tried adjusting every component of the pneumatic system without success. We contacted dispatch and maintenance and discussed options. The heat was unbearable. The equipment cooling light began to flicker as a result of the heat. I elected to leave the cockpit door open and raise the cabin barrier. I posted a flight attendant at the barrier and had our jumpseater guard the open door. Another flight attendant supplied us with water and wet towels to fool off. Prior to landing I closed the cockpit door and had the flight attendants retract the barrier. Once unpressurized; we turned the pack off. The cockpit temperature was probably around 120 degrees fahrenheit. The landing was without incident. Due to fatigue from the extreme temperature; this crew elected to go to the hotel and pick up the balance of our trip the next day.
Original NASA ASRS Text
Title: THE FLT STATION TEMP APCHED 120 DEGS FAHRENHEIT FOLLOWING AN ACFT MALFUNCTION WITH 1 OPERATING PACK. THE PLTS OPENED THE FLT STATION DOOR TO PROVIDE COOLING AIR.
Narrative: WE WERE DISPATCHED WITH 1 PACK INOP. THE OPERATING PACK WAS PUTTING OUT EXTREMELY HOT AIR INTO THE COCKPIT. WE TRIED ADJUSTING EVERY COMPONENT OF THE PNEUMATIC SYS WITHOUT SUCCESS. WE CONTACTED DISPATCH AND MAINT AND DISCUSSED OPTIONS. THE HEAT WAS UNBEARABLE. THE EQUIP COOLING LIGHT BEGAN TO FLICKER AS A RESULT OF THE HEAT. I ELECTED TO LEAVE THE COCKPIT DOOR OPEN AND RAISE THE CABIN BARRIER. I POSTED A FLT ATTENDANT AT THE BARRIER AND HAD OUR JUMPSEATER GUARD THE OPEN DOOR. ANOTHER FLT ATTENDANT SUPPLIED US WITH WATER AND WET TOWELS TO FOOL OFF. PRIOR TO LNDG I CLOSED THE COCKPIT DOOR AND HAD THE FLT ATTENDANTS RETRACT THE BARRIER. ONCE UNPRESSURIZED; WE TURNED THE PACK OFF. THE COCKPIT TEMP WAS PROBABLY AROUND 120 DEGS FAHRENHEIT. THE LNDG WAS WITHOUT INCIDENT. DUE TO FATIGUE FROM THE EXTREME TEMP; THIS CREW ELECTED TO GO TO THE HOTEL AND PICK UP THE BAL OF OUR TRIP THE NEXT DAY.
Data retrieved from NASA's ASRS site as of January 2009 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.