No mechanic would sign anything off unless he fixed it properly.
But you would gladly fly on a plane with pilots and fas who have on duty for 12 or more hours?
Didn't say that 700. Didn't want to go into all the jobs because I knew someone like you would point out one that would enivitably be missed. I was a aircraft mechanic for 20 years, but the career field really doesn't matter. If anyone can say they function
as well after 16 hours of work as the do a normal shift they are a better person than me. Studies have been done on people's effeciency on long work days and the more hours are extended after a normal workday, mistakes increase exponentially. For this reason some career feilds do not allow longer than 12 hour shifts. The nuclear career feild immediately comes to mind and techs loading bombs on aircraft is another.
Your remark that "no mechanic would sign anything off unless he fixed it properly"...well in theory yes, but if he
thought he/she fixed it properly does not count. What I mean by that is after working 16 hours dilegently with good intentions and
believing the job was done right doesn't mean the job was done right. Mistakes happen and mistakes increase exponentially after a normal shift. Singled mindedness that mechanics only sign off jobs done right is off the mark.
I'd like to share a story I'm not proud of but maybe you'll understand my opinion a bit better. I'll admit I worked a 14 hour night shift and I thought I did the job right and the job
itself was done right, but I left a tool under a panel by accident. I didn't realize it till the next day when I got to work and found my tool missing. I almost fainted as my mind raced through the job completed the previous evening. Fortunately the aircraft was on the ramp and I opened the panel and found the tool wedged underneath a large circuit breaker panel. Later I found out the aircraft had flown that morning and was horrified at the potentially dangerous situation I could have caused. Worst case senario the tool could have caused a short in the electrical wiring in the panel and God only knows what would have happened next, disabled systems...or worse a fire.
I assure you I thought I did the job right, but in reality I didn't do a thorough enough tool check and the end of the shift due to not being as alert as I would have been had it been a normal shift. That was the last time I ever came up short a tool, but it only takes one mistake to cause a serious situation. It is a known fact mistakes increase exponentially as hours increase over a normal workday.