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B727 crew is unable to control cabin pressurization on climb out. Declare emergency. Return to departure airport and land overweight.
| Attributes | |
| ACN | 402040 |
| Time | |
| Date | 199805 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zau airport : ord |
| State Reference | IL |
| Altitude | msl bound lower : 668 msl bound upper : 18000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau tracon : ord tower : ord |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude other other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 402040 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | flight crew : declared emergency none taken : anomaly accepted other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Unable to control pressurization in automatic or manual on climb out through FL180. Cabin climbed no higher than 7000 ft cabin altitude. Returned to ord, landed overweight at 157500 pounds with 300 FPM descent rate. Landing was smooth. Declared an emergency for overweight landing.
Original NASA ASRS Text
Title: B727 CREW IS UNABLE TO CTL CABIN PRESSURIZATION ON CLBOUT. DECLARE EMER. RETURN TO DEP ARPT AND LAND OVERWT.
Narrative: UNABLE TO CTL PRESSURIZATION IN AUTO OR MANUAL ON CLBOUT THROUGH FL180. CABIN CLBED NO HIGHER THAN 7000 FT CABIN ALT. RETURNED TO ORD, LANDED OVERWT AT 157500 LBS WITH 300 FPM DSCNT RATE. LNDG WAS SMOOTH. DECLARED AN EMER FOR OVERWT LNDG.
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.