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First officer of a heavy transport air carrier aircraft failed to put on an oxygen mask when the captain left the cockpit at high altitude above 25000 ft.
| Attributes | |
| ACN | 256141 |
| Time | |
| Date | 199310 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : den |
| State Reference | CO |
| Altitude | msl bound lower : 33000 msl bound upper : 33000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv |
| Operator | common carrier : air carrier |
| Make Model Name | Heavy Transport, Low Wing, 4 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 100 flight time total : 4300 flight time type : 3300 |
| ASRS Report | 256141 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | pilot : flight engineer pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 101 flight time total : 2800 flight time type : 470 |
| ASRS Report | 255943 |
| Events | |
| Anomaly | non adherence : far other anomaly other |
| Independent Detector | other flight crewa other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
The captain left his seat and I was the only manipulator of the aircraft and forgot to use the oxygen mask. With us was an FAA inspector who never said anything until we landed, then asked me about the rules of using oxygen above 25000 ft in a pressurized aircraft. I was contacted by our chief pilot and asked to write a report and I did.
Original NASA ASRS Text
Title: FO OF A HVT ACR ACFT FAILED TO PUT ON AN OXYGEN MASK WHEN THE CAPT LEFT THE COCKPIT AT HIGH ALT ABOVE 25000 FT.
Narrative: THE CAPT LEFT HIS SEAT AND I WAS THE ONLY MANIPULATOR OF THE ACFT AND FORGOT TO USE THE OXYGEN MASK. WITH US WAS AN FAA INSPECTOR WHO NEVER SAID ANYTHING UNTIL WE LANDED, THEN ASKED ME ABOUT THE RULES OF USING OXYGEN ABOVE 25000 FT IN A PRESSURIZED ACFT. I WAS CONTACTED BY OUR CHIEF PLT AND ASKED TO WRITE A RPT AND I DID.
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.