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A cpr pilot has a depressurization and is, initially, unable to tell ARTCC so he starts his descent without a clearance and without squawking 7700. He later is cleared lower and given direct to the nearest airport.
| Attributes | |
| ACN | 365632 |
| Time | |
| Date | 199704 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : jnc airport : gjt |
| State Reference | CO |
| Altitude | msl bound lower : 19200 msl bound upper : 20000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv tower : ord |
| Operator | general aviation : corporate |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other other other |
| Route In Use | enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 145 flight time total : 8200 flight time type : 2600 |
| ASRS Report | 365632 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : far non adherence : published procedure other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency flight crew : exited adverse environment other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
We were in cruise flight at FL200 when we had a cabin depressurization. ZDV was busy talking with other flts when the depressurization occurred. I tried 2 times to request a lower altitude and was stepped on by other xmissions. I started my descent and a right 180 degree turn to return to grand junction. I was descending through 19200 ft before I could call center to advise them of the depressurization. I was immediately cleared to 11000 ft and direct grand junction airport. The cause of the depressurization was a sheered bolt that holds the front edge of the emergency exit closed.
Original NASA ASRS Text
Title: A CPR PLT HAS A DEPRESSURIZATION AND IS, INITIALLY, UNABLE TO TELL ARTCC SO HE STARTS HIS DSCNT WITHOUT A CLRNC AND WITHOUT SQUAWKING 7700. HE LATER IS CLRED LOWER AND GIVEN DIRECT TO THE NEAREST ARPT.
Narrative: WE WERE IN CRUISE FLT AT FL200 WHEN WE HAD A CABIN DEPRESSURIZATION. ZDV WAS BUSY TALKING WITH OTHER FLTS WHEN THE DEPRESSURIZATION OCCURRED. I TRIED 2 TIMES TO REQUEST A LOWER ALT AND WAS STEPPED ON BY OTHER XMISSIONS. I STARTED MY DSCNT AND A R 180 DEG TURN TO RETURN TO GRAND JUNCTION. I WAS DSNDING THROUGH 19200 FT BEFORE I COULD CALL CTR TO ADVISE THEM OF THE DEPRESSURIZATION. I WAS IMMEDIATELY CLRED TO 11000 FT AND DIRECT GRAND JUNCTION ARPT. THE CAUSE OF THE DEPRESSURIZATION WAS A SHEERED BOLT THAT HOLDS THE FRONT EDGE OF THE EMER EXIT CLOSED.
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.