- Preventive Maintenance
- Date issued
- Office of Primary Responsibility
This advisory circular (AC) provides information concerning preventive maintenance,including who may perform it, the standards of performance applicable to it, authority for approval for return to service, and the applicable recording requirements. This AC clarifies those areas most frequently misunderstood in the past.
- AC 43-12A with Change 1 (PDF)
- AC 43-12A (PDF)