Cirrus Aircraft Update Webinar

Power plant
SR22T
Inspection/Check - Exhaust System
Visually inspect slip joints for bulges, cracks, or hot spots.
Visually inspect stacks, risers, and elbows for burned areas, cracks, and loose parts or
hardware. Check welded areas and seams for cracks. Replace parts that are cracked,
burned, or worn.
Visually inspect heat exchanger seams, joints and transitions with a flashlight and mirror
or a flexible borescope for physical damage, cracks, corrosion, and burn-through. Inspect
connecting flanges for security and proper mating.
Perform exhaust leak test.
1 Connect a high volume, dust-free, air pressure source to the exhaust tailpipe outlet.
2 Apply 5 psi of air pressure to the exhaust system.
3 Apply soapy water to the exhaust system and check for bubbling. If bubbling is
found, replace the leaking exhaust components.
Visually inspect exhaust stacks and transition unit for wear, leaks, cracks, or distortion.
Replace worn, leaking, cracked, or distorted exhaust parts.
Visually inspect exhaust manifold connections at cylinder for security of exhaust flange,
gasket, and exhaust manifold fasteners.
Visually inspect V-band clamps.
1 Remove V-band clamp from exhaust tailpipe.
2 Clean outer band of V-band clamp with crocus cloth.
3 Inspect V-band clamp spot-weld (or rivet) areas for cracks and looseness.
4 Using a flashlight and mirror, inspect corner radii of clamp inner segments for
cracks. Inspect inner segment spacing.
5 Inspect clamp outer band for flatness using a straight edge, especially within 2
inches of spot-weld tabs that retain the T-bolt fastener. Verify clearance between
clamp outer band and straight edge is less than 0.062 inches (1.57 mm).
6 Verify 100% contact between inner segments and outer band.