AircraftDirectives
Airworthiness Directive

AD 2016-21-04 81 FR 70929

Federal Aviation Administration · 14 CFR part 39

FR document
2016-24794
Amendment
39-18685
Published
2016-10-14
Models covered
1
Last live check
2026-08-17

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AD

2016-21-04

FR doc 2016-24794 · 81 FR 70929

AD 2016-21-04Published 2016-10-14Effective 2016-11-18

Requires replacing the oil cooler cross fitting assembly.

Full official abstract

We are adopting a new airworthiness directive (AD) for certain Continental Motors, Inc. (CMI) TSIO-550-K, TSIOF-550-K, TSIO-550-C, TSIOF-550-D, and TSIO-550-N reciprocating engines. This AD was prompted by a report of an uncommanded in-flight shutdown (IFSD) resulting in injuries and significant airplane damage. This AD requires replacing the oil cooler cross fitting assembly. We are issuing this AD to prevent failure of the oil cooler cross fitting and engine, IFSD, and loss of the airplane.

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Applies to 1 model in our index