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A B737-300 during climb to 10000 ft the aircraft would not pressurize. Remained at 10000 ft to trip termination. Found forward entry door not seated.
| Attributes | |
| ACN | 593707 |
| Time | |
| Date | 200309 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zzz.tracon |
| State Reference | US |
| Altitude | msl single value : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : zzz.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : n/s |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 9500 flight time type : 5000 |
| ASRS Report | 593707 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 200 flight time total : 9000 flight time type : 4000 |
| ASRS Report | 593966 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other other : person 3 |
| Resolutory Action | controller : issued new clearance flight crew : overcame equipment problem |
| Consequence | other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Cabin Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
Narrative:
On departure, we noticed the cabin altitude was climbing faster than normal. We quickly checked the bleeds and packs and they were on and automatic respectively. All door lights and pressurization lights were not illuminated. As we continued to climb, the cabin differential pressure stopped at 1.0 and the cabin altitude continued to climb. We asked for and received a temporary (and later final) leveloff at 10000 ft. The cabin stabilized at 1.0 pressure differential and 7500 ft cabin altitude. Packs to high made very little difference. We talked to the flight attendants and they confirmed an air leak around the forward entry door. I asked them to take their seats for the rest of the flight and we continued to ZZZ because we had no warning lights and, by this time, we were as close to ZZZ as we were our departing city. Maintenance met us and noticed the forward entry door was not completely seated as we taxied in. They adjusted the door and performed a pressurization check (normal). Again, no warning lights or horns for the entire flight.
Original NASA ASRS Text
Title: A B737-300 DURING CLB TO 10000 FT THE ACFT WOULD NOT PRESSURIZE. REMAINED AT 10000 FT TO TRIP TERMINATION. FOUND FORWARD ENTRY DOOR NOT SEATED.
Narrative: ON DEP, WE NOTICED THE CABIN ALT WAS CLBING FASTER THAN NORMAL. WE QUICKLY CHKED THE BLEEDS AND PACKS AND THEY WERE ON AND AUTO RESPECTIVELY. ALL DOOR LIGHTS AND PRESSURIZATION LIGHTS WERE NOT ILLUMINATED. AS WE CONTINUED TO CLB, THE CABIN DIFFERENTIAL PRESSURE STOPPED AT 1.0 AND THE CABIN ALT CONTINUED TO CLB. WE ASKED FOR AND RECEIVED A TEMPORARY (AND LATER FINAL) LEVELOFF AT 10000 FT. THE CABIN STABILIZED AT 1.0 PRESSURE DIFFERENTIAL AND 7500 FT CABIN ALT. PACKS TO HIGH MADE VERY LITTLE DIFFERENCE. WE TALKED TO THE FLT ATTENDANTS AND THEY CONFIRMED AN AIR LEAK AROUND THE FORWARD ENTRY DOOR. I ASKED THEM TO TAKE THEIR SEATS FOR THE REST OF THE FLT AND WE CONTINUED TO ZZZ BECAUSE WE HAD NO WARNING LIGHTS AND, BY THIS TIME, WE WERE AS CLOSE TO ZZZ AS WE WERE OUR DEPARTING CITY. MAINT MET US AND NOTICED THE FORWARD ENTRY DOOR WAS NOT COMPLETELY SEATED AS WE TAXIED IN. THEY ADJUSTED THE DOOR AND PERFORMED A PRESSURIZATION CHK (NORMAL). AGAIN, NO WARNING LIGHTS OR HORNS FOR THE ENTIRE FLT.
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.