These guys do very little real maintenance for anybody. When CO
had a problem during the day one of these guys would go look at the problem. The article mentioned an improperly deferred autopilot. Houston mtx controllers would call these guys to go and place the item on a deferred maintenance list. Most likely they were required to pull the c/b and tag the item. Then they did a log book entry. This is what the Feds found to be wrong. Unless Fred the Fed is looking over your shoulder while you work, he can only look at the paperwork days, weeks or months later to find fault.
At my first airline job the deferred list was the first place they looked for mistakes. We had guys that routinely screwed up the deferred entries. They did the physical work right, but didn't document it correctly so the job was done wrong. Was it a problem? Yes, was it as bad as leaving a cotter pin off a wheel assembly, doubtful. CO
is at fault for not properly training Miami Tech and overseeing their work. An internal auditor should have caught these mistakes and notified the mechanics of their mistakes.