CESSNA 421C Eagle II & Eagle III

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CESSNA 421C Eagle II & Eagle III AD 2000-01-16 Applies to all S/N's Visual inspection of exhaust system every 50 hrs or 30 days of operation. Remove/inspect tailpipes for cracks, corrosion, holes or distortion every 12 months. Inspect/pressure test exhaust system every 12 months. Replace multi-segment V-band clamps every 500 hrs Of operation. Remove exhaust system from slip-joints aft to all turbo- charger components every 2500 hrs of operation or 12 yrs whichever occurs first and send to approved repair facility. 12 11 2 3 4 5 6 7 8 9 10 9 13 1 Inspect tailpipes for internal pitting and wall thickness especially at the outside radius, which is the thin section, and at support bracket. Inspect joints for freedom of movement and distortion. Inspect turbo header for internal pitting, warped and or cracked flow divider and thin sections. Some of the parts for this aircraft are Inconel. Although Inconel is a far superior metal, it is more difficult to inspect. Inconel tends to corrode from the inside without showing signs of flaking or bulging like stainless steel. The carbon on the inside of the exhaust parts should be removed to properly inspect the components. If the welds are developing pinholes the component may not pass an internal inspection. Slip fit stack assemblies should be ordered in a complete assembly to ensure good joint integrity with smooth slip fitting. Item Part Number Description Item Part Number Description 9910295-15 STACK ASSY LEFT HAND 9910295-16 STACK ASSY RIGHT HAND 9910295-17 RISER LEFT HAND FRONT 9910295-18 RISER RIGHT HAND FRONT 9910295-19 RISER LEFT HAND CENTER 9910295-20 RISER RIGHT HAND CENTER 9910295-21 RISER LEFT HAND REAR 9910295-22 RISER RIGHT HAND REAR 9910296-2/7 SLIP JOINT 9910300-13 HEADER 9910300-7 HEADER 9910300-3 BYPASS ELBOW 9910300-1 TAILPIPE LEFT ENGINE 9910300-2 TAILPIPE RIGHT ENGINE 9910300-4 HEAT SHIELD RIGHT HAND 9910300-5 HEAT SHIELD LEFT HAND 628260 GASKET 011-252 SPRING KIT NH1000897-50 CLAMP TAILPIPE 3063CC262 CLAMP MANIFOLD SUPPORT 3063CC450 CLAMP TAILPIPE SUPPORT (2 NEEDED) 9910306-1 GASKET WASTEGATE 002957006 GASKET WASTEGATE VARIOUS INDUCTION AIR CANISTER VARIOUS SEAT BASE 5155011-1 BRACKET TURBO SUPPORT RIGHT HAND 5155011-21 BRACKET TURBO SUPPORT LEFT HAND 1 2 3 4 5 6 7 8 9 10 10 11 12 - - - - - 13 - - - - - - - - L E L N E C C E X E (toll free) 1-888-388-8803 1-780-447-5955 Fax: 1-780-447-5980 sales@acornwelding.com parts@acornwelding.com www.acornwelding.com (toll free) 1-888-388-8803 1-780-447-5955 Fax: 1-780-447-5980 sales@acornwelding.com parts@acornwelding.com www.acornwelding.com ©2010 Acorn Welding Ltd.