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B737-200 just leveled FL330 when cabin pressure uncontrollable. During descent many assigned altitudes were overshot account distraction of the pressurization problem. Communication very difficult through the oxygen mask. Diverted to rno.
| Attributes | |
| ACN | 366391 |
| Time | |
| Date | 199704 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : rno |
| State Reference | NV |
| Altitude | msl bound lower : 33000 msl bound upper : 33000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa tower : lga |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other other other |
| Route In Use | enroute : on vectors enroute airway : zoa |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | controller military : 9 controller non radar : 2 controller radar : 28 controller supervisory : 3 flight time last 90 days : 400 flight time total : 15000 flight time type : 600 |
| ASRS Report | 366391 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : overshoot non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Pressurization problem. Cabin altitude uncontrolled just as engine power reduced at leveloff, FL330. During altitude descent to many different altitudes, altitudes were busted due to engrossed in pressure problems. Problems in communications -- intercom with oxygen masks, ATC and flight attendant calling about temperature. Diverted to rno.
Original NASA ASRS Text
Title: B737-200 JUST LEVELED FL330 WHEN CABIN PRESSURE UNCTLABLE. DURING DSCNT MANY ASSIGNED ALTS WERE OVERSHOT ACCOUNT DISTR OF THE PRESSURIZATION PROB. COM VERY DIFFICULT THROUGH THE OXYGEN MASK. DIVERTED TO RNO.
Narrative: PRESSURIZATION PROB. CABIN ALT UNCTLED JUST AS ENG PWR REDUCED AT LEVELOFF, FL330. DURING ALT DSCNT TO MANY DIFFERENT ALTS, ALTS WERE BUSTED DUE TO ENGROSSED IN PRESSURE PROBS. PROBS IN COMS -- INTERCOM WITH OXYGEN MASKS, ATC AND FLT ATTENDANT CALLING ABOUT TEMP. DIVERTED TO RNO.
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.