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A B727-200 freighter is mandated to return land when crew is unable to pressurize the aircraft. The first officer's window was not fully closed due to a broken track bearing, north of mem, tn.
| Attributes | |
| ACN | 458983 |
| Time | |
| Date | 199912 |
| Day | Thu |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : mem.airport |
| State Reference | TN |
| Altitude | msl single value : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : mem.tracon tower : bdr.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : flight engineer |
| Experience | flight time last 90 days : 107 flight time total : 11800 flight time type : 3400 |
| ASRS Report | 458983 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance other anomaly other |
| Independent Detector | other flight crewa other flight crewb other other : 2 |
| Resolutory Action | flight crew : landed as precaution flight crew : diverted to another airport |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Flight Crew Human Performance Company Aircraft |
| Primary Problem | Aircraft |
Narrative:
After takeoff, aircraft would not pressurize. Noise from first officer window was deafening, making it very difficult for crew to communicate. Attempts by first officer to get window to move or seal better were unsuccessful. Fuel dumped approximately 25 mi north of mem. After dumping to landing weight, returned to mem. Maintenance found first officer window forward lower track bearing loose. Replaced with svcable unit.
Original NASA ASRS Text
Title: A B727-200 FREIGHTER IS MANDATED TO RETURN LAND WHEN CREW IS UNABLE TO PRESSURIZE THE ACFT. THE FO'S WINDOW WAS NOT FULLY CLOSED DUE TO A BROKEN TRACK BEARING, N OF MEM, TN.
Narrative: AFTER TKOF, ACFT WOULD NOT PRESSURIZE. NOISE FROM FO WINDOW WAS DEAFENING, MAKING IT VERY DIFFICULT FOR CREW TO COMMUNICATE. ATTEMPTS BY FO TO GET WINDOW TO MOVE OR SEAL BETTER WERE UNSUCCESSFUL. FUEL DUMPED APPROX 25 MI N OF MEM. AFTER DUMPING TO LNDG WT, RETURNED TO MEM. MAINT FOUND FO WINDOW FORWARD LOWER TRACK BEARING LOOSE. REPLACED WITH SVCABLE UNIT.
Data retrieved from NASA's ASRS site as of July 2007 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.