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A DC9 flight crew declare an emergency and return for landing after they experienced a pressurization problem.
| Attributes | |
| ACN | 602318 |
| Time | |
| Date | 200312 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : crl.vortac |
| State Reference | MI |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Rain |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 30 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 14000 flight time type : 3000 |
| ASRS Report | 602318 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : less severe |
| Independent Detector | aircraft equipment other aircraft equipment : cabin alt gage other flight crewa |
| Resolutory Action | flight crew : declared emergency flight crew : took evasive action flight crew : landed in emergency condition |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
While in cruise at FL350, southeast of dtw on J-34, heard a loud bang. Sounded like someone hit the cockpit door. Called lead flight attendant and he advised that he also heard the noise, but not sure where the noise came from. About that time I noticed that the cabin pressure was beginning to climb approximately 1000 FPM. We started a descent to FL310 and went to manual on pressure controller. Cabin continued a slow climb and cabin differential began to descend. Requested an immediate descent to 10000 ft. Declared emergency, advised flight attendant and passenger of need to divert to dtw. Uneventful landing in dtw.
Original NASA ASRS Text
Title: A DC9 FLT CREW DECLARE AN EMER AND RETURN FOR LNDG AFTER THEY EXPERIENCED A PRESSURIZATION PROB.
Narrative: WHILE IN CRUISE AT FL350, SE OF DTW ON J-34, HEARD A LOUD BANG. SOUNDED LIKE SOMEONE HIT THE COCKPIT DOOR. CALLED LEAD FLT ATTENDANT AND HE ADVISED THAT HE ALSO HEARD THE NOISE, BUT NOT SURE WHERE THE NOISE CAME FROM. ABOUT THAT TIME I NOTICED THAT THE CABIN PRESSURE WAS BEGINNING TO CLB APPROX 1000 FPM. WE STARTED A DSCNT TO FL310 AND WENT TO MANUAL ON PRESSURE CTLR. CABIN CONTINUED A SLOW CLB AND CABIN DIFFERENTIAL BEGAN TO DSND. REQUESTED AN IMMEDIATE DSCNT TO 10000 FT. DECLARED EMER, ADVISED FLT ATTENDANT AND PAX OF NEED TO DIVERT TO DTW. UNEVENTFUL LNDG IN DTW.
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.