Aircraft Maintenance
FAR Part 23 – Airworthiness Standards
FAR 91.7 – Civil aircraft airworthiness
- No person may operate a civil aircraft unless it is in an airworthy condition
- The pilot in command of a civil aircraft is responsible for determining whether that aircraft is in condition for safe flight
- The pilot in command shall discontinue the flight when unairworthy mechanical, electrical, or structural conditions occur
Required Inspections
AVIATES
Annual / ADs FAR 91.40912 cm / as reqVOR Check FAR 91.171
30 days – IFRInspections FAR 91.409
annual, 100 hour, progressiveAltimeter & Pitot-Static FAR 91.411
24 cm – IFRTransponder FAR 91.413
24 cmELT FAR 91.207
12 cm / 1 hr use / <50% battery
Supplemental Type Certificate
Annual Inspection
- Required for everyone
100 Hour Inspection
- Required when operating for hire
- Can be overflown by 10 hours if flying to maintenance
Progressive Inspection
- 50 hours – light engine, airframe maintenance
- 100 hours – heavy engine, medium airframe maintenance
- 600 hours – complete checkup
Airworthiness Directives
FAR Part 39 – Airworthiness Directives
- Propeller, airframe, powerplant each have separate logbooks and ADs
Special Airworthiness Information Bulletins (SAIBs)
- Non-regulatory
- Alerts, education and recommendations for aviation community
Preventative Maintenance
VOR Check
FAR 91.171 – IFR VOR Equipment Check
Chart Supplement
BADVAG
Bench ±4°
Airborne ±6°
Dual VOR ±4°
VOT ±4°
Airway ±6°
Ground ±4°