Found out some regional jets have a single mechanic sign off for major work

Was reading through a FAA advisory circular last night and saw that some commuter jets can have one A&P do a full engine swap without a second sign off for certain operators. That surprised me since I always thought two sets of eyes were required for anything major. I work on 737s mostly and our manual says two signatures for any powerplant removal. Is this really a thing for the smaller birds or am I reading the reg wrong? Anyone here work at a regional that can tell me how it goes?

3 comments

3 Comments

ivan822mo ago

Wait, you're telling me a single A&P can sign off an engine swap on a Dash-8? I saw a turbine overhaul once where the lead just signed a sticky note and called it good.

willowroberts2mo ago

@ivan82 dude that sticky note thing is exactly the kind of stuff that keeps me up at night honestly. I've seen some sketchy paperwork at my hangar too but nothing that wild. It's weird how the regs let smaller birds get away with single sign offs on major work, I always figured an engine swap would be the one thing you'd want a second set of eyes on no matter what type it is.

the_hugo23d ago

Well I don't know... seems like everyone's acting like one signature means the plane is falling apart or something. I've seen some two-man sign offs where the second guy just scribbles without even looking at the work, so that extra signature doesn't always mean much. The real question is whether the mechanic actually knows what they're doing and is honest about it... a sticky note is stupid but one A&P who takes their time is better than two who rush.