Airworthiness Directive
AD 2018-17-01: Bell Helicopter Textron, Inc. (Bell) Helicopters
Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters
- Effective
- Sep 5, 2018
- Published
- Aug 21, 2018
- Registered aircraft
- 147
Models this AD may apply to
AI-extracted — verify against originalMatched from the AD's applicability section. Applicability must be confirmed by a mechanic against the aircraft's records.
Aircraft
- Bell 212
- Bell 212
- Bell 412
- Bell 412
- Bell 412 CF
- Bell 412 RSAF
- Bell 412EP
- Bell 412EP
- Bell 412EP
- Only with: Engine oil check valve P/N 209-062-520-001 or fuel check valve P/N 209-062-607-001 manufactured by Circor Aerospace, marked "Circle Seal" with manufacturing date code 10/11 through 03/15, installed, except valves marked "TQL" next to the date code.
- Only with: Engine oil check valve P/N 209-062-520-001 or fuel check valve P/N 209-062-607-001 manufactured by Circor Aerospace, marked "Circle Seal" with manufacturing date code 10/11 through 03/15, installed, except valves marked "TQL" next to the date code.
Applicability
From the AD textThis AD applies to Bell 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, marked ``Circle Seal'' and with a manufacturing date code of ``10/11'' (October 2011) through ``03/15'' (March 2015), except a check valve marked ``TQL'' next to the manufacturing date code, installed.
Related ADs
Superseded or revised by AD 2019-09-02.
Supersedes or revises AD 2017-15-02.
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