AD 2010-04-05 Airworthiness Directives; McCauley Propeller Systems 1A103/TCM Series Propellers

Makes named: mccauley. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to McCauley Propeller Systems 1A103/TCM series propellers, all serial numbers. These propellers are installed on, but not limited to Cessna 152, Cessna A152, Reims F152, and Reims FA152 series airplanes, and on airplanes with Lycoming 0-235-L2C reciprocating engines modified by Supplemental Type Certificates SA1763SO, SA5695NM, SA1000NW, and SA432NE.

You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. Initial Inspection of Propellers Not Previously Inspected (f) For propellers not previously inspected using McCauley Service Bulletin (Alert) No. 221C, dated September 7, 1999, or McCauley Alert Service Bulletin (ASB) No. ASB221D, dated January 28, 2008, do the following: (1) For propellers with more than 1,500 operating hours time-since-new (TSN) or unknown operating hours TSN on the effective date of this AD, within the next 50 operating hours time-in-service (TIS), do the actions specified in paragraphs (h) through (m) of this AD. (2) For propellers with 1,500 or fewer operating hours TSN on the effective date of this AD, upon reaching 1,500 operating hours TSN or within the next 50 operating hours TIS, whichever is later, do the actions specified in paragraphs (h) through (m) of this AD. Initial Inspection of Propellers Previously Inspected (g) For propellers previously inspected using McCauley Service Bulletin (Alert) No. 221C, dated September 7, 1999, or McCauley ASB No. ASB221D, dated January 28, 2008, do the following: (1) For propellers with more than 1,500 operating hours TSN on the effective date of this AD, and with 750 or more operating hours time-since-last-inspection (TSLI), within the next 50 operating hours TIS, do the actions specified in paragraphs (h) through (m) of this AD. (2) For propellers with more than 1,500 operating hours TSN on the effective date of this AD, and with fewer than 750 operating hours TSLI, before reaching 750 operating hours TSLI or within the next 50 operating hours TIS, whichever occurs later, do the actions specified in paragraphs (h) through (m) of this AD. (h) Visual- and dye-penetrant-inspect for cracks in the propeller hub. (i) Inspect the bolt holes and ream the holes if necessary. (j) Inspect the steel reinforcement plates and gaskets. (k) Remove propellers that are not within the bolt hole inspection limits or have cracks that are not within the rework limits. (l) Rework propellers that have cracks that meet acceptable rework limits. (m) Use the Accomplishment Instructions of McCauley ASB No. ASB221E, dated January 28, 2010, to do the inspections, rework, and removals from service. Repetitive Propeller Inspections (n) Thereafter, for all propellers, within every additional 750 operating hours TIS, perform the actions in paragraphs (h) through (m) of this AD. Alternative Methods of

This AD results from 16 reports received of propeller hubs found cracked since AD 2003-12-05 was issued. We are issuing this AD to prevent propeller separation due to hub fatigue cracking, which can result in loss of control of the airplane.