Regulatory Brief -- FAA issues long-awaited twin Cessna exhaust AD

Figure 1 of Docket No. 97-CE-67-AD

Compliance Table

Letters in ( ) correspond with AD paragraphs	(b)	(c)	(d)	(e)	(f)	(g)	Throughout the AD
Actions of Docket No. 97-CE-67-AD	Visually inspect the exhaust system.	Remove the tailpipes and visually inspect for any crack, corrosion, holes, or distortion.	Visually inspect the outboard engine beams, firewalls, and canted bulkheads.	Inspect and pressure test the exhaust system.	Replace the multi-segment V-band clamps.	Remove the exhaust system from the slip joints aft to all turbo-charger components.	If any damage is found on any component or part, repair or replace the damaged component or part in accordance with this AD.
Initial Compliance Time	Within the next 50 hours TIS after the effective date of this AD or within the next 30 calendar days, whichever occurs later.	Upon the accumulation of 5 years since installing a new or overhauled exhaust system or within the next 100 hours TIS after the effective date of this AD, whichever occurs later.	Within the next 100 hours TIS after the effective date of this AD.	Upon the accumulation of 5 years since installing a new or overhauled exhaust system or within the next 100 hours TIS after the effective date of this AD, whichever occurs later.	Within 500 hours TIS after the last replacement required by AD 75-23-08 R5 or within the next 500 hours TIS after the effective date of this AD, whichever occurs first.	At whichever occurs later: - At the next engine overhaul that occurs after the accumulation of 2,500 hours TIS since installing a new or overhauled exhaust system;or - Within the next 100 hours TIS after the effective date of this AD.	Prior to further flight after damage is found.
Repetitive Compliance Times	Thereafter at intervals not to exceed 50 hours TIS or 30 calendar days, whichever occurs later.	Thereafter at intervals not to exceed 12 calendar months.	Thereafter at intervals not to exceed 500 hours TIS.	Thereafter at intervals not to exceed 12 calendar months.	Thereafter at intervals not to exceed 500 hours TIS.	Thereafter at intervals not to exceed 2,500 hours TIS or 12 years, whichever occurs first. These inspection intervals are established to coincide with each regularly scheduled engine overhaul.	Prior to further flight after damage is found.