AircraftDirectives
Menu
Service Instruction

SI 1255

Lycoming Engines

Issued
2016-05-13
Models covered
4

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

SI

SI 1255

Lycoming Engines

Issued 2016-05-13

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.

Thermostatic Oil Cooler Valve Replacement

Source: Lycoming Engines, retrieved 2026-09-01

View on Lycoming Engines' site (opens in a new tab)

Applies to 4 models in our index

Search