I would think it would depend on the squawk..
A squawk for #2 radio inop would be minor to a day vfr local training sortie
but a killer on an IFR cross country, granted repair and signoff would be a
radio shop mechanic
A squawk for a missing knob on an instrument face would be minor, TAS set
dial?
A squawk for cord showing on a tire (a pilot can change a tire) would be
minor, but a bad magneto check would be another one for the mechanic

BT

"Greg Esres" wrote in message
...
I'm curious as to the legal status of the squawk sheets for airplanes
at flight schools or FBOs. There has been some discussion as to who
is "legal" to sign off on a return to service after a renter has
written a squawk. Some mechanics say instructors can do so.

My suspicion is that squawk sheets have no legal standing at all, and
any pilot can choose to fly a squawked airplane if he believes it
legal and safe to fly.

Anyone have information regarding this?