AC 91-59A, ADVISORY CIRCULAR: INSPECTION AND CARE OF GENERAL AVIATION AIRCRAFT EXHAUST SYSTEMS (23 JUL 2007)

AC 91-59A, ADVISORY CIRCULAR: INSPECTION AND CARE OF GENERAL AVIATION AIRCRAFT EXHAUST SYSTEMS (23 JUL 2007)., This advisory circular (AC) emphasizes the safety hazards of poorly maintained aircraft exhaust systems (reciprocating powerplants) and highlights points at which exhaust system failures occur. Further, it provides information on the kinds of problems to be expected and recommends pilots perform ongoing preventive maintenance and mechanics perform maintenance.