Narrative:

After climb out from btv we experienced a gyroscope system failure. I would estimate this occurred around glens falls, ny. Not a big deal, we ran the checklist and reverted to #2 system. Immediately, I noticed the FMS made no sense. Where we were on course prior to the failure we're now (according to the FMS) 3 mi off course. Also, we had just gone to btv from dca and the wind was southwest at approximately 40 KTS. Now the FMS indicated northeast winds to speeds in the neighborhood of 150 KTS. I pointed this out to the captain and he refused to believe it. He tried coupling up the FMS. Even though we were west of course (according to the FMS) with a 150 KT wind and the aircraft turned away from course, I was in radar navigation mode and confirmed the FMS was wrong. Still the captain refused to believe me. He said 'let's see what it'll do.' the aircraft turned 40 degrees away from course and I told him to give up. I had made many requests for him to stop but he ignored me. Also, only after my persistent badgering would he let me tell ATC we were navigationally impaired. I could just not convince him that what he saw in the FMS was not right. I have had this problem with this particular captain a lot. (I don't care that I am young and vocal, captain. My arguments were valid and even if they aren't, prove me wrong, don't just tell me I don't know what's up.) I think my age is a real issue with this guy. Regardless thanks to his attitude, we probably were 3 mi either side of course for 70 mi or so, despite my persistent objections.

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Original NASA ASRS Text

Title: DEALING WITH NAV EQUIP PROBS LEADS TO COURSE DEVS AND CRM PROBS.

Narrative: AFTER CLBOUT FROM BTV WE EXPERIENCED A GYROSCOPE SYS FAILURE. I WOULD ESTIMATE THIS OCCURRED AROUND GLENS FALLS, NY. NOT A BIG DEAL, WE RAN THE CHKLIST AND REVERTED TO #2 SYS. IMMEDIATELY, I NOTICED THE FMS MADE NO SENSE. WHERE WE WERE ON COURSE PRIOR TO THE FAILURE WE'RE NOW (ACCORDING TO THE FMS) 3 MI OFF COURSE. ALSO, WE HAD JUST GONE TO BTV FROM DCA AND THE WIND WAS SW AT APPROX 40 KTS. NOW THE FMS INDICATED NE WINDS TO SPDS IN THE NEIGHBORHOOD OF 150 KTS. I POINTED THIS OUT TO THE CAPT AND HE REFUSED TO BELIEVE IT. HE TRIED COUPLING UP THE FMS. EVEN THOUGH WE WERE W OF COURSE (ACCORDING TO THE FMS) WITH A 150 KT WIND AND THE ACFT TURNED AWAY FROM COURSE, I WAS IN RADAR NAV MODE AND CONFIRMED THE FMS WAS WRONG. STILL THE CAPT REFUSED TO BELIEVE ME. HE SAID 'LET'S SEE WHAT IT'LL DO.' THE ACFT TURNED 40 DEGS AWAY FROM COURSE AND I TOLD HIM TO GIVE UP. I HAD MADE MANY REQUESTS FOR HIM TO STOP BUT HE IGNORED ME. ALSO, ONLY AFTER MY PERSISTENT BADGERING WOULD HE LET ME TELL ATC WE WERE NAVIGATIONALLY IMPAIRED. I COULD JUST NOT CONVINCE HIM THAT WHAT HE SAW IN THE FMS WAS NOT RIGHT. I HAVE HAD THIS PROB WITH THIS PARTICULAR CAPT A LOT. (I DON'T CARE THAT I AM YOUNG AND VOCAL, CAPT. MY ARGUMENTS WERE VALID AND EVEN IF THEY AREN'T, PROVE ME WRONG, DON'T JUST TELL ME I DON'T KNOW WHAT'S UP.) I THINK MY AGE IS A REAL ISSUE WITH THIS GUY. REGARDLESS THANKS TO HIS ATTITUDE, WE PROBABLY WERE 3 MI EITHER SIDE OF COURSE FOR 70 MI OR SO, DESPITE MY PERSISTENT OBJECTIONS.

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.