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Air carrier large transport aircraft rapid depressurization resulted in an emergency descent and an unscheduled landing.
| Attributes | |
| ACN | 223002 |
| Time | |
| Date | 199210 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : psp |
| State Reference | CA |
| Altitude | msl bound lower : 34000 msl bound upper : 34000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 180 flight time total : 7000 flight time type : 375 |
| ASRS Report | 223002 |
| 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 | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Experienced very rapid cabin depressurization during descent from FL350. Problem occurred about FL340. Cabin pressure rose above 10000 ft very rapidly. Oxygen masks (crew) had been donned and emergency descent had been initiated previously as a precaution. Accomplished explosive depressurization checklist per company procedures. ATC was notified and emergency was declared. Upon reaching 10000 ft, flight attendants notified us of the smell of electrical type smoke. Decided to land at nearest airport. Landed riv (march AFB). Landing was uneventful, smell of smoke was gone. Crash and rescue crews advised no damage and no sign of smoke or fire. Emergency evacuate/evacuation was determined not to be necessary. Smell was later determined to be from the oxygen generators for the passenger.
Original NASA ASRS Text
Title: ACR LGT ACFT RAPID DEPRESSURIZATION RESULTED IN AN EMER DSCNT AND AN UNSCHEDULED LNDG.
Narrative: EXPERIENCED VERY RAPID CABIN DEPRESSURIZATION DURING DSCNT FROM FL350. PROBLEM OCCURRED ABOUT FL340. CABIN PRESSURE ROSE ABOVE 10000 FT VERY RAPIDLY. OXYGEN MASKS (CREW) HAD BEEN DONNED AND EMER DSCNT HAD BEEN INITIATED PREVIOUSLY AS A PRECAUTION. ACCOMPLISHED EXPLOSIVE DEPRESSURIZATION CHKLIST PER COMPANY PROCS. ATC WAS NOTIFIED AND EMER WAS DECLARED. UPON REACHING 10000 FT, FLT ATTENDANTS NOTIFIED US OF THE SMELL OF ELECTRICAL TYPE SMOKE. DECIDED TO LAND AT NEAREST ARPT. LANDED RIV (MARCH AFB). LNDG WAS UNEVENTFUL, SMELL OF SMOKE WAS GONE. CRASH AND RESCUE CREWS ADVISED NO DAMAGE AND NO SIGN OF SMOKE OR FIRE. EMER EVAC WAS DETERMINED NOT TO BE NECESSARY. SMELL WAS LATER DETERMINED TO BE FROM THE OXYGEN GENERATORS FOR THE PAX.
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.