Lycoming Connecting Rods Ad

Lycoming engin es formerly textron lycoming 360 and 540 series reciprocating.

Lycoming connecting rods ad.

If a piston is to be replaced it is strongly recommended that the power plant mechanic refer to lycoming service instruction no. You may have to register before you can post. For the purpose of this ad connecting rod accessibility is defined as any maintenance action in which a cylinder assembly is removed for maintenance. Lycoming piston engines ad lyc 116 eci connecting rods 7 2006 tx applicability.

On my o 320 rods the bearing notch on the connecting rod piece not the cap piece is on the same side as the cylinder number stamp. We are issuing this ad to prevent connecting rod failure. In late july as tens of thousands of ga aircraft owners were converging on oshkosh for airventure 2017 lycoming published mandatory service bulletin 632 titled identification of connecting rods with non conforming small end bushings this was a very nasty service bulletin affecting lycoming engines of all models that were built rebuilt overhauled or repaired during the past two years. 632b dated august 4 2017.

Whenever new connecting rods and or new connecting rod bolts are being installed. 0 0 12 24 2014 11 33 pm 5. Use of a connecting rod stamped with an s will ensure that the weight match between rods is always within the tolerance allowed by the lycoming specification for that particular part number. Lycoming engines mandatory service bulletin msb no.

The msb describes procedures for inspecting connecting rods and replacing connecting rod small end bushings. The faa issued an ad requiring operators of lycoming engines to inspect and possibly replace off spec connecting rod small end bushings in engines overhauled between november 2015 and february 2017. Click the register link above to proceed. Faa proposes emergency ad for lycoming rods if this is your first visit be sure to check out the faq by clicking the link above.

Related service information under 1 cfr part 51. The faa has issued an airworthiness directive ad for the connecting rods in certain models of lycoming engines and asked for comments on the ad 2017 16 11. All supported lycoming reciprocating aircraft engines.