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A B737 temporarily loses its cabin pressure, gains control back but had started rapid descent, goes back to and lands at sjc, ca.
| Attributes | |
| ACN | 513953 |
| Time | |
| Date | 200105 |
| Day | Mon |
| Place | |
| Locale Reference | airport : sjc.airport |
| State Reference | CA |
| Altitude | msl single value : 14000 |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 513953 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : cab alt wrong horn other flight crewa other flight crewb |
| Resolutory Action | flight crew : landed as precaution flight crew : overcame equipment problem flight crew : diverted to another airport flight crew : declared emergency other |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
Narrative:
Climbing through 14000 ft cabin altitude horn sounded. Cabin was climbing through 11000 ft. Initiated rapid descent to 8000 ft. Captain and first officer put on masks and establish communication, packs to high and regained pressurization. Declared an emergency, returned to sjc with captain making an uneventful landing.
Original NASA ASRS Text
Title: A B737 TEMPORARILY LOSES ITS CABIN PRESSURE, GAINS CTL BACK BUT HAD STARTED RAPID DSCNT, GOES BACK TO AND LANDS AT SJC, CA.
Narrative: CLBING THROUGH 14000 FT CABIN ALT HORN SOUNDED. CABIN WAS CLBING THROUGH 11000 FT. INITIATED RAPID DSCNT TO 8000 FT. CAPT AND FO PUT ON MASKS AND ESTABLISH COM, PACKS TO HIGH AND REGAINED PRESSURIZATION. DECLARED AN EMER, RETURNED TO SJC WITH CAPT MAKING AN UNEVENTFUL 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.