M91-4

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Continental Aerospace Technologies

Issued 1991-02-11

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.

PISTON IDENTIFICATION AND PISTON RING APPLICATION BULLETIN

Source: Continental Aerospace Technologies, retrieved 2026-09-01

View on Continental Aerospace Technologies' site

Applies to 9 models in our index

Continental C-85 Continental Aerospace Technologies · engine
Continental C-90 Continental Aerospace Technologies · engine
Continental E165/E185/E225 Continental Aerospace Technologies · engine
Continental IO-360 Continental Aerospace Technologies · engine
Continental IO-520 Continental Aerospace Technologies · engine
Continental IO-550 Continental Aerospace Technologies · engine
Continental O-200 Continental Aerospace Technologies · engine
Continental O-300 Continental Aerospace Technologies · engine
Continental O-470 Continental Aerospace Technologies · engine