Aviation Mechanic - General, Airframe, and Powerplant › III. Powerplant › Task L. Engine Exhaust and Reverser Systems

AM.III.L.R3

Risk management

Operation of reciprocating engines with exhaust systems leaks.

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - Powerplant p. 3-23
Chapter 3: Induction & Exhaust Systems › Reciprocating Engine Exhaust Systems › Reciprocating Engine Exhaust System Maintenance Practices
The lead, zinc, or galvanized mark is absorbed by the metal of…
Aviation Maintenance Technician Handbook - Airframe p. 17-7
Chapter 17: Fire Protection Systems › Fire Detection/Overheat Systems › Fire Zones
should develop a leak, the loss of gas pressure would allow the integrity switch to open and signal a lack of detector integrity. The system then does not operate during test. Figure 17-8. Aircraft detection system control module. Fire ... obstructions. The power section of a reciprocating engine is usually of this type. 2. Class B zone—area of heavy airflow past aerodynamically clean obstructions. Included in this type are heat exchanger ducts, exhaust manifold shrouds, and areas where…
Aviation Maintenance Technician Handbook - Powerplant p. 3-21
Chapter 3: Induction & Exhaust Systems › Reciprocating Engine Exhaust Systems
Modern exhaust systems, though comparatively light, adequately resist high temperatures, corrosion, and vibration to provide long, trouble-free operation with minimum maintenance. There are two general types of exhaust systems in use on reciprocating aircraft engines: the short stack ... open) system and the collector system. The short stack system is generally used on nonsupercharged engines and low-powered engines where noise level is not too objectionable. The collector system is used on most large nonsupercharged engines…