 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
SR22 pilot is 200 ft low in cruise; with his oximeter reading 72% his O2 saturation was very low and subsequently found his O2 hose disconnected.
| Attributes | |
| ACN | 804746 |
| Time | |
| Date | 200809 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : 1v5.airport |
| Altitude | msl bound lower : 17800 msl bound upper : 18000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv.artcc |
| Operator | general aviation : personal |
| Make Model Name | SR22 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 75 flight time total : 5000 flight time type : 1200 |
| ASRS Report | 804746 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : undershoot non adherence : far |
| Independent Detector | other controllerb |
| Resolutory Action | flight crew : returned to assigned altitude flight crew : overcame equipment problem |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
Narrative:
I was cleared to FL180. About 10 mins after leveling; ATC said they showed me 200 ft low. I found that I had not reset my altimeter to 29.92; but the reason for the error is the reason for this ASRS submission. I used my pulse oximeter to check my oxygen saturation. It was 72% -- very low. (My oxygen line had disconnected.) I was fortunate that the result of my hypoxia was so benign -- indeed; that I had sufficient mental capacity to recognize and remedy the situation before it got much worse.
Original NASA ASRS Text
Title: SR22 PLT IS 200 FT LOW IN CRUISE; WITH HIS OXIMETER READING 72% HIS O2 SATURATION WAS VERY LOW AND SUBSEQUENTLY FOUND HIS O2 HOSE DISCONNECTED.
Narrative: I WAS CLRED TO FL180. ABOUT 10 MINS AFTER LEVELING; ATC SAID THEY SHOWED ME 200 FT LOW. I FOUND THAT I HAD NOT RESET MY ALTIMETER TO 29.92; BUT THE REASON FOR THE ERROR IS THE REASON FOR THIS ASRS SUBMISSION. I USED MY PULSE OXIMETER TO CHK MY OXYGEN SATURATION. IT WAS 72% -- VERY LOW. (MY OXYGEN LINE HAD DISCONNECTED.) I WAS FORTUNATE THAT THE RESULT OF MY HYPOXIA WAS SO BENIGN -- INDEED; THAT I HAD SUFFICIENT MENTAL CAPACITY TO RECOGNIZE AND REMEDY THE SITUATION BEFORE IT GOT MUCH WORSE.
Data retrieved from NASA's ASRS site as of May 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.