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Flight crew of cpr jet returned and landed after unsuccessfully controling the aircraft pressurization during climb.
| Attributes | |
| ACN | 275017 |
| Time | |
| Date | 199406 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : stl airport : zkc |
| State Reference | MO |
| Altitude | msl bound lower : 17200 msl bound upper : 18000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zkc artcc : zdc |
| Operator | general aviation : corporate |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | arrival other departure other departure sid : sid enroute airway : zkc |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 75 flight time total : 8700 flight time type : 1350 |
| ASRS Report | 275017 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
We were climbing out of stl when at approximately FL180 we lost the cabin pressurization system. The cabin pressure made swings from maximum increase then maximum decrease. We were forced to initiate a decrease in flight altitude. We attempted contact 3 times with ZKC before they answered. At this point, we had already commenced the descent. We probably had already descended 800 ft before ZKC responded. There did not appear to be any conflict. We made an immediate return to stl and landed.
Original NASA ASRS Text
Title: FLC OF CPR JET RETURNED AND LANDED AFTER UNSUCCESSFULLY CTLING THE ACFT PRESSURIZATION DURING CLB.
Narrative: WE WERE CLBING OUT OF STL WHEN AT APPROX FL180 WE LOST THE CABIN PRESSURIZATION SYS. THE CABIN PRESSURE MADE SWINGS FROM MAX INCREASE THEN MAX DECREASE. WE WERE FORCED TO INITIATE A DECREASE IN FLT ALT. WE ATTEMPTED CONTACT 3 TIMES WITH ZKC BEFORE THEY ANSWERED. AT THIS POINT, WE HAD ALREADY COMMENCED THE DSCNT. WE PROBABLY HAD ALREADY DSNDED 800 FT BEFORE ZKC RESPONDED. THERE DID NOT APPEAR TO BE ANY CONFLICT. WE MADE AN IMMEDIATE RETURN TO STL AND LANDED.
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.