AD NO.
2022-11-19
SUBJECT
Joint Aircraft System Component (JASC) Code: 2800 Aircraft Fuel System and 7900 Engine Oil System (Airframe).
APPLICABILITY
This AD applies to Bell Textron Inc. Model 212, 412, 412CF, and 412EP helicopters, certificated in any category, with an engine oil check valve part number (P/N) 209-062-520-001 or fuel check valve P/N 209-062-607-001 manufactured by Circor Aerospace that: (1) Is marked “Circle Seal” and “CORONA CA,” except not a check valve marked with “TQL,” and (2) Has a manufacturing date code of, or prior to, “9/11” (September 2011), or does not have a manufacturing date code, installed.
ISSUED BY
FAA