AM.III.L.R4

From the FAA library

• Aviation Maintenance Technician Handbook - Powerplantp. 3-22
  Chapter 3: Induction & Exhaust Systems › Reciprocating Engine Exhaust Systems › Reciprocating Engine Exhaust System Maintenance Practices

  Reciprocating Engine Exhaust System Maintenance Practices Any exhaust system failure should be regarded as a severe hazard. Depending on the location and type of failure, an exhaust system failure can result in carbon monoxide poisoning of crew and passengers, partial ... serious problems in flight. Often, these failures can be detected before complete failure. Black soot around an exhaust gasket shows the gasket has failed. The exhaust system should be inspected very thoroughly. While the type and location of exhaust system…

• 14 CFR Part 135 — Operating Requirements: Commuter and on Demand Operations and Rules Governing Persons on Board Such AircraftOpen
  14 CFR Part 135, Appendix A to Part 135—Additional Airworthiness Standards for 10 or More Passenger Airplanes

  possible for hazardous contamination of the cabin air system to occur in event of lubrication system failure. Exhaust System 50. Exhaust system drains. Turbopropeller engine exhaust systems having low spots or pockets must incorporate drains at those locations. These drains…

• Aviation Maintenance Technician Handbook - Powerplantp. 3-23
  Chapter 3: Induction & Exhaust Systems › Reciprocating Engine Exhaust Systems › Muffler & Heat Exchanger Failures

  cabin heat system. These failures, in most cases, are caused by thermal and vibration fatigue cracking in areas of stress concentration. Failure of the spot-welds, which attach the heat transfer pins, can result in exhaust gas leakage. In addition ... heat exchanger surfaces can permit exhaust gases to be drawn into the engine induction system, causing engine overheating and power loss. Exhaust Manifold & Stack Failures Exhaust manifold and stack failures are usually fatigue failures at welded or clamped points…