Service Instruction

SI 1596

Lycoming Engines

Issued: 2026-07-20
Revision: -
Document type: SI
Models covered: 0

Opens your browser's print dialog. Choose “Save as PDF” to export a file. Keyboard: Ctrl+P or Cmd+P.

SI 1596

Lycoming Engines

Issued 2026-07-20

Manufacturer - not an FAA rule

NOT AN FAA REQUIREMENT — This is a manufacturer document. It is not an FAA Airworthiness Directive and compliance is not required by 14 CFR 39 unless an AD cites it.

Recommended Time Between Overhaul Periods for Engines Affected by and Not in Compliance with AD 2012-19-01

Source: Lycoming Engines, retrieved 2026-09-01

View on Lycoming Engines' site

We have not yet linked this bulletin to specific aircraft or engine models in our index.