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Flight crew of a learjet 25 at FL440 declared an emergency and descended after hearing a bang and noticing the cabin altitude rising. They subsequently relighted one of the engines which had stopped.
| Attributes | |
| ACN | 506215 |
| Time | |
| Date | 200103 |
| Day | Wed |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : ags.airport |
| State Reference | GA |
| Altitude | msl single value : 44000 |
| Environment | |
| Weather Elements | Turbulence |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl.artcc tracon : a90.tracon |
| Operator | general aviation : corporate |
| Make Model Name | Learjet 25 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : charter |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 120 flight time total : 6000 flight time type : 1000 |
| ASRS Report | 506215 |
| Person 2 | |
| Affiliation | company : charter |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : cabin altitude ind other flight crewa other flight crewb |
| Resolutory Action | flight crew : declared emergency |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
While in heavy to moderate turbulence on my way back from yip to fxe, a bang was heard. I noticed a climb in cabin altitude. We requested an immediate descent. At the same time, we started down out of the block altitude. We were told to hold altitude. We repeated 'we need an immediate descent.' the controller asked if we were declaring an emergency. We then declared an emergency and went down to FL250. A relight was completed. Engine indications were normal. After landing at fxe, aircraft was written up.
Original NASA ASRS Text
Title: FLC OF A LEARJET 25 AT FL440 DECLARED AN EMER AND DSNDED AFTER HEARING A BANG AND NOTICING THE CABIN ALT RISING. THEY SUBSEQUENTLY RELIGHTED ONE OF THE ENGS WHICH HAD STOPPED.
Narrative: WHILE IN HVY TO MODERATE TURB ON MY WAY BACK FROM YIP TO FXE, A BANG WAS HEARD. I NOTICED A CLB IN CABIN ALT. WE REQUESTED AN IMMEDIATE DSCNT. AT THE SAME TIME, WE STARTED DOWN OUT OF THE BLOCK ALT. WE WERE TOLD TO HOLD ALT. WE REPEATED 'WE NEED AN IMMEDIATE DSCNT.' THE CTLR ASKED IF WE WERE DECLARING AN EMER. WE THEN DECLARED AN EMER AND WENT DOWN TO FL250. A RELIGHT WAS COMPLETED. ENG INDICATIONS WERE NORMAL. AFTER LNDG AT FXE, ACFT WAS WRITTEN UP.
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.