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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Unidentified aircraft type suffers loss of pressure during climb out. Previous incomplete maintenance procedure should have resulted in a restriction to unpressurized flight only.
| Attributes | |
| ACN | 743039 |
| Time | |
| Date | 200706 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zma.artcc |
| State Reference | FL |
| Altitude | msl bound lower : 10000 msl bound upper : 16500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma.artcc |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 743039 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : diverted to another airport flight crew : overcame equipment problem |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Company |
| Primary Problem | Aircraft |
Narrative:
The aircraft was not repaired appropriately to match the flight release given to me. The aircraft should have been flown unpressurized with a much higher fuel load. We were cleared to 22000 ft. Climbing out of 16500 ft; we heard a swishing noise from the cabin. We told ATC we wanted to maintain 17000 ft. After about 1 min the cabin would not hold the pressure and we heard a louder noise. We put on oxygen masks and communicated to ATC that we wanted 10000 ft. We were cleared to 10000 ft and executed the excessive cabin altitude/rapid depressurization maneuver. At 10000 ft; we completed the QRH and took off the oxygen masks since the aircraft was flying normally. We agreed to divert to fll which was a distance of 150 mi with 16000 pounds of fuel on board. We landed in fll with no further events.
Original NASA ASRS Text
Title: UNIDENTIFIED ACFT TYPE SUFFERS LOSS OF PRESSURE DURING CLIMB OUT. PREVIOUS INCOMPLETE MAINT PROCEDURE SHOULD HAVE RESULTED IN A RESTRICTION TO UNPRESSURIZED FLT ONLY.
Narrative: THE ACFT WAS NOT REPAIRED APPROPRIATELY TO MATCH THE FLT RELEASE GIVEN TO ME. THE ACFT SHOULD HAVE BEEN FLOWN UNPRESSURIZED WITH A MUCH HIGHER FUEL LOAD. WE WERE CLRED TO 22000 FT. CLBING OUT OF 16500 FT; WE HEARD A SWISHING NOISE FROM THE CABIN. WE TOLD ATC WE WANTED TO MAINTAIN 17000 FT. AFTER ABOUT 1 MIN THE CABIN WOULD NOT HOLD THE PRESSURE AND WE HEARD A LOUDER NOISE. WE PUT ON OXYGEN MASKS AND COMMUNICATED TO ATC THAT WE WANTED 10000 FT. WE WERE CLRED TO 10000 FT AND EXECUTED THE EXCESSIVE CABIN ALT/RAPID DEPRESSURIZATION MANEUVER. AT 10000 FT; WE COMPLETED THE QRH AND TOOK OFF THE OXYGEN MASKS SINCE THE ACFT WAS FLYING NORMALLY. WE AGREED TO DIVERT TO FLL WHICH WAS A DISTANCE OF 150 MI WITH 16000 LBS OF FUEL ON BOARD. WE LANDED IN FLL WITH NO FURTHER EVENTS.
Data retrieved from NASA's ASRS site as of January 2009 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.