Narrative:

On 11/91, I reported to work for my assigned trip pairing. According to my bid packet this trip was scheduled as a normal rest overnight, allowing for 9 hours and 51 mins layover time in monterey. Unbeknownst to my captain and me, this trip had been amongst the revised trip pairings; changed at the last min, but not limited to just a flight cancellation. The new trip pairing had increased my on duty time and significantly shortened my block-in/block- out time down to 8 hours and 10 mins. Such a shortened time allotted, makes it physically and psychologically impossible to obtain adequate amounts of sleep...as referenced in my previously submitted incident report dated 11/91, the FAA states clearly, 'as a pilot, you should get approximately 8 hours of sleep a night.' on this particular overnight, I received about 4 1/2 hours of sleep. 'Sleep researchers classify short sleep as fewer than 6 hours...' #1. The next day, we were expected to continue to fly for over 8 hours on very little sleep. Both my captain and I agreed we were no longer safe in the cockpit, thus, in violation of our medical certificates, therefore illegal under federal law to continue flying. Upon reaching san jose, my captain advised crew scheduling of our status. We both took ourselves off line.

Related reports:

Google
 

Original NASA ASRS Text

Title: COMMUTER FO AND CAPT REFUSED TO CONTINUE 'TRIP PAIRING' AFTER ARR AT HOME BASE.

Narrative: ON 11/91, I RPTED TO WORK FOR MY ASSIGNED TRIP PAIRING. ACCORDING TO MY BID PACKET THIS TRIP WAS SCHEDULED AS A NORMAL REST OVERNIGHT, ALLOWING FOR 9 HRS AND 51 MINS LAYOVER TIME IN MONTEREY. UNBEKNOWNST TO MY CAPT AND ME, THIS TRIP HAD BEEN AMONGST THE REVISED TRIP PAIRINGS; CHANGED AT THE LAST MIN, BUT NOT LIMITED TO JUST A FLT CANCELLATION. THE NEW TRIP PAIRING HAD INCREASED MY ON DUTY TIME AND SIGNIFICANTLY SHORTENED MY BLOCK-IN/BLOCK- OUT TIME DOWN TO 8 HRS AND 10 MINS. SUCH A SHORTENED TIME ALLOTTED, MAKES IT PHYSICALLY AND PSYCHOLOGICALLY IMPOSSIBLE TO OBTAIN ADEQUATE AMOUNTS OF SLEEP...AS REFED IN MY PREVIOUSLY SUBMITTED INCIDENT RPT DATED 11/91, THE FAA STATES CLRLY, 'AS A PLT, YOU SHOULD GET APPROX 8 HRS OF SLEEP A NIGHT.' ON THIS PARTICULAR OVERNIGHT, I RECEIVED ABOUT 4 1/2 HRS OF SLEEP. 'SLEEP RESEARCHERS CLASSIFY SHORT SLEEP AS FEWER THAN 6 HRS...' #1. THE NEXT DAY, WE WERE EXPECTED TO CONTINUE TO FLY FOR OVER 8 HRS ON VERY LITTLE SLEEP. BOTH MY CAPT AND I AGREED WE WERE NO LONGER SAFE IN THE COCKPIT, THUS, IN VIOLATION OF OUR MEDICAL CERTIFICATES, THEREFORE ILLEGAL UNDER FEDERAL LAW TO CONTINUE FLYING. UPON REACHING SAN JOSE, MY CAPT ADVISED CREW SCHEDULING OF OUR STATUS. WE BOTH TOOK OURSELVES OFF LINE.

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.