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Aircraft equipment problem -- air carrier starts to lose pressurization over water and descends to a lower altitude to maintain cabin pressure.
| Attributes | |
| ACN | 315855 |
| Time | |
| Date | 199509 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ogg |
| State Reference | HI |
| Altitude | msl bound lower : 31000 msl bound upper : 35000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa tower : dca |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute : pacific enroute : other oceanic |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 18000 flight time type : 180 |
| ASRS Report | 315855 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency flight crew : overcame equipment problem other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Had climbing cabin altitude approaching fizel. Initiated emergency procedure to regain cabin. Declared emergency to descend to regain cabin altitude control. I turned off course and descended toward FL310. Oceanic HF acknowledge emergency. I later was given clearance to FL310 and returned on course. I continued to hnl at FL310 without further problems.
Original NASA ASRS Text
Title: ACFT EQUIP PROB -- ACR STARTS TO LOSE PRESSURIZATION OVER WATER AND DSNDS TO A LOWER ALT TO MAINTAIN CABIN PRESSURE.
Narrative: HAD CLBING CABIN ALT APCHING FIZEL. INITIATED EMER PROC TO REGAIN CABIN. DECLARED EMER TO DSND TO REGAIN CABIN ALT CTL. I TURNED OFF COURSE AND DSNDED TOWARD FL310. OCEANIC HF ACKNOWLEDGE EMER. I LATER WAS GIVEN CLRNC TO FL310 AND RETURNED ON COURSE. I CONTINUED TO HNL AT FL310 WITHOUT FURTHER PROBS.
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.