Memory

Question 1

Required inspections

Answer 1

Airworthiness Directives 91.417(a)(2)(v)
Notifies aircraft owners and other interested persons of unsafe conditions and to specify the conditions under which the product may continue to be operated. They could be either one-time or recurring ADs.
Annual Inspection 91.409
Every 12 calendar months. Can only be performed by an IAP (Inspection Authorized) mechanic. It also can substitute a 100-hr inspection.
VOR 91.171
Every 30 days. Only required for IFR flights.
100-hour Inspection 91.409
Only required if the aircraft is for hire.
An aircraft can exceed its 100hr inspection only by up to 10 hrs while en route to a place where the inspection can be done. A special flight permit is not needed to fly those 10 hours, but the time must be logged in the maintenance record.
If an inspection was due at 100hrs but the plane flew 105hrs before it was inspected, the next inspection will still be due at 200hrs.
Altimeter, altitude reporting and static system 91.411
Every 24 calendar months
Transponder 91.413
Every 24 calendar months
ELT 91.207
Every 12 calendar months
The regulation lists a lot of cases in which an ELT is not required, in which case maintenance is not required. Out of all items in that list there are two which might apply for flight training purposes:
If engaged in training operations conducted entirely within a 50-nautical mile radius of the airport from which such local flight operations began.
If temporarily removed for no more than 90 days for inspection, repair, modification, or replacement, and in its place is a placard stating the removal.

Question 3

Mode C - ADS-B

Answer 3

Class A, B, and C airspace; Class E airspace at or above 10,000 feet msl, excluding airspace at and below 2,500 feet agl; Within 30 nautical miles of a Class B primary airport (the Mode C veil);