FAA Advisory Circular 43.13-1B
Acceptable Methods, Techniques, and Practices
Aircraft Inspection and Repair
AC 43.13-1B | 8. Engines, Fuel, Exhaust, and Propellers | 3. Exhaust Systems | 8-51. Turbo-supercharger
9/8/98
AC 43.13-1B
FIGURE 8-19. Failed internal baffle partially obstructing
the muffler outlet.
FIGURE 8-21a. Example of exhaust outlet guard.
FIGURE 8-21b. Example of exhaust outlet guard
installed.
FIGURE 8-20. Failed internal baffle completely ob-
structing the muffler outlet.
the completed repair has not warped or other-
wise affected the alignment of the exhaust
system. Repairs or sloppy weld beads, which
protrude internally, are not acceptable since
they cause local hotspots and may restrict ex-
haust gas flow. All repairs must meet the
manufacturer’s specifications. When repairing
or replacing exhaust system components, be
sure that the proper hardware and clamps are
used. Do not substitute steel or low-
temperature self-locking nuts for brass or spe-
cial high-temperature locknuts used by the
manufacturer. Never reuse old gaskets or old
star lock washers. When disassembly is neces-
sary replace gaskets with new ones of the same
type provided by the manufacturer.
8-51. TURBO-SUPERCHARGER. When
a turbo-supercharger is included, the exhaust
system operates under greatly-increased pres-
sure and temperature conditions. Extra pre-
cautions should be taken in the exhaust
system’s care and maintenance. During
Par 8-50
Page 8-27