Supersedes Service Bulletin No. 569 Aprl 11, 2006 MODELS AFFECTED Any Lycoming engine model specified below manufactures, rebuilt, overhauled, or repaired after March 1, 1997: Lycoming counterweighted (L)IO-360, and AEIO-360 engines described in section 1. Lycoming IO-390 and AEIO-590 engines described in Section 2. Lycoming O-540, IO-540, AEIO-540 and (L)TIO-540 engines described in Section 3...

DATE: July 11, 2005 MODELS AFFECTED Any Lycoming engine model specified below manufactured, rebuilt, overhauled or repaired after March 1, 1999: Lycoming O-540, IO-540, AEIO-540 and TIO-540 engines rated at 290 horsepower or lower as described in Section 1 and listed in Table 1. Lycoming IO-540-P, -S, -AA engines rated at 250-290 horsepower by Lycoming as described in Section 2 and listed in Table...

November 19, 2009 MODELS AFFECTED Engines Shipped From Lycoming: All new, overhauled, rebuilt, or repaired (L)IO, AIO, HIO, IGO, IVO, (L)TIO, AEIO series engines with either a Precision Airmotive or Bendix RSA-5 or RSA-10 series Fuel Injection Servo, or a Precision Airmotive Silverhawk EX Fuel Injection Kit shipped from Lycoming between August 22, 2006 and April 2, 2008. Spares Shipped From...

Many of the aircraft engines produced today are equipped with fullflow, spin-on oil filters. For long engine life, it is necessary to change both the oil and the filter at regular intervals. The information we receive indicates that problems are sometimes encountered because proper procedures are not followed when changing the spin-on filter. Therefore, it is appropriate to provide a few tips from...