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A B737-300 lost cabin pressurization at FL340. An emergency was declared after donning oxygen masks. The flight was quickly cleared to 10000 feet and continued the short distance to the destination airport.
| Attributes | |
| ACN | 970482 |
| Time | |
| Date | 201109 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Pressurization System |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Commercial |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
The cabin altitude warning horn sounded at FL340. I looked up at the cabin altitude indicator and it was climbing about 1500 fpm. I instructed the first officer to don oxygen mask and established crew communication. We then accomplished the emergency check list and the QRH. We declared an emergency and requested an immediate descent and we were cleared to FL240 initially and then 10;000'. As soon as the emergency descent was initiated by me; I directed the first officer to advise the flight attendant's of an emergency descent and to have passengers go on oxygen; they reported that masks had already dropped and all passengers were donning oxygen masks. At 10;000' I called flight attendant's to check on passengers; they reported that all were fine. Then I gave the instruction for them to have passengers remove their masks. I also made an announcement to the passengers to explain what had happened. Once handed over to approach control; I told them that we had the situation under control but requested and expeditious handling to the airport. ATC did an excellent job handling our flight. After passengers deplaned; I debriefed the entire flight crew and we were all in agreement that it was handled in a very professional way.
Original NASA ASRS Text
Title: A B737-300 lost cabin pressurization at FL340. An emergency was declared after donning oxygen masks. The flight was quickly cleared to 10000 feet and continued the short distance to the destination airport.
Narrative: The Cabin Altitude Warning horn sounded at FL340. I looked up at the cabin altitude indicator and it was climbing about 1500 fpm. I instructed the First Officer to don oxygen mask and established crew communication. We then accomplished the emergency check list and the QRH. We declared an emergency and requested an immediate descent and we were cleared to FL240 initially and then 10;000'. As soon as the emergency descent was initiated by me; I directed the First Officer to advise the Flight Attendant's of an emergency descent and to have passengers go on oxygen; they reported that masks had already dropped and all passengers were donning oxygen masks. At 10;000' I called Flight Attendant's to check on passengers; they reported that all were fine. Then I gave the instruction for them to have passengers remove their masks. I also made an announcement to the passengers to explain what had happened. Once handed over to approach control; I told them that we had the situation under control but requested and expeditious handling to the airport. ATC did an excellent job handling our flight. After passengers deplaned; I debriefed the entire flight crew and we were all in agreement that it was handled in a very professional way.
Data retrieved from NASA's ASRS site as of April 2012 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.