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An air carrier pilot describes a state of fatigue so deep that he did not realize until after rest how fatigued he was the previous day.
| Attributes | |
| ACN | 791928 |
| Time | |
| Date | 200806 |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | A319 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : preflight ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 3000 |
| Events | |
| Anomaly | non adherence : published procedure non adherence : far non adherence : company policies |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Our flight out of ZZZ was delayed by about 4 hours due to maintenance and ultimately a plane change. At the end of it; I had been awake 19 hours. The problem is not the hours awake. It's that at the end; it was XA00 am. The first officer and I had a frank conversation in the cockpit before pushback about fatigue. We both agreed we could do the flight. I thought I'd be ok at the beginning of the flight. And I was for a while. Looking back on it today; after some sleep; I can see that I made a mistake. I should have pulled the plug in ZZZ due to the time of arrival that I had no chance to prepare my body for.
Original NASA ASRS Text
Title: AN ACR PLT DESCRIBES A STATE OF FATIGUE SO DEEP THAT HE DID NOT REALIZE UNTIL AFTER REST HOW FATIGUED HE WAS THE PREVIOUS DAY.
Narrative: OUR FLT OUT OF ZZZ WAS DELAYED BY ABOUT 4 HRS DUE TO MAINT AND ULTIMATELY A PLANE CHANGE. AT THE END OF IT; I HAD BEEN AWAKE 19 HRS. THE PROB IS NOT THE HRS AWAKE. IT'S THAT AT THE END; IT WAS XA00 AM. THE FO AND I HAD A FRANK CONVERSATION IN THE COCKPIT BEFORE PUSHBACK ABOUT FATIGUE. WE BOTH AGREED WE COULD DO THE FLT. I THOUGHT I'D BE OK AT THE BEGINNING OF THE FLT. AND I WAS FOR A WHILE. LOOKING BACK ON IT TODAY; AFTER SOME SLEEP; I CAN SEE THAT I MADE A MISTAKE. I SHOULD HAVE PULLED THE PLUG IN ZZZ DUE TO THE TIME OF ARR THAT I HAD NO CHANCE TO PREPARE MY BODY FOR.
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.