Service Bulletin No. 564 A 

Inspection of Suction Screen Length

Publications

Supersedes Service Bulletin No. 564

August 22, 2008 

MODELS AFFECTED

Lycoming  AEIO­360­A1B6, ­A1E, ­H1B model engines listed below in Table.

TIME OF COMPLIANCE

Prior to  any inverted flight but no later than next scheduled  oil change (50 hours of engine operation).

The incorrect oil suction screen may have been installed in the aerobatic engines listed below. This will  result in the plug installed in the oil suction pickup to become loose, resulting in a loss of oil pressure during  inverted flight.

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