Service Instruction No. 1397 A

Overflow Oil from Breather Fitting of Inverted Oil System

  • Publications

June 1, 2016

MODELS AFFECTED

All AEIO-320, -360, -390, -540 and -580 Aerobatic series engines

TIME OF COMPLIANCE

Every 300 hours of operation or any time there is evidence of oil discharge from the breather.

REASON FOR REVISION

Added 390 and 580 engine models and clarification.

This Service Instruction identifies necessary routine maintenance to be done on the inverted oil system of aerobatic Lycoming engines models.

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