Fuel / Oil — Check Valves — Inspection / Replacement
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must measure the outside diameter of affected check valves within 25 hours time-in-service or 30 days after July 6, 2022, whichever occurs first. If measurements exceed the specified limit, perform repetitive inspections for cracks and leaks every 25 hours TIS or 30 days until the valve is removed from service within 600 hours TIS or 12 months. Do not install affected check valves on any helicopter after the effective date.
Summary
Federal Register Volume 87, Number 105 (June 1, 2022) Final Rule titled "Fuel / Oil — Check Valves — Inspection / Replacement" is an FAA Airworthiness Directive (AD 2022-11-19) addressing Bell Textron Inc. Model 212, 412, 412CF, and 412EP helicopters. It targets engine oil check valve P/N 209-062-520-001 and fuel check valve P/N 209-062-607-001 manufactured by Circor Aerospace with specific markings and manufacturing dates. The directive mandates inspection and replacement procedures to mitigate risks associated with cracked check valves.
What changed
This new AD introduces mandatory inspection and replacement requirements for certain engine oil and fuel check valves on specified Bell Textron helicopters. It requires measuring the outside diameter of the check valve housing and, if certain criteria are met, repetitive inspections for cracks and leaks, followed by removal from service within specified timeframes. The AD also prohibits installation of affected check valves on any helicopter from the effective date.
Why it matters
This AD is critical for aviation professionals to prevent potential engine failure or fire caused by cracked check valves, which could lead to loss of helicopter control. Operators and maintenance teams must ensure compliance to maintain airworthiness and safety. The directive helps mitigate risks related to manufacturing defects and improper assembly torque that could compromise engine lubrication or fuel supply.
More for Bell Textron Inc. (Bti) 212
All 25- EASA AD 2015-0226R8Equipment / Furnishings — Hoist — Test / ReplacementJul 16, 2025
- EASA AD US-2024-20-07Equipment / Furnishings - Emergency Float Kit Activation Handle - Repetitive Inspections / ReplacementNov 29, 2024
- EASA AD 2022-0047-CNCANCELLED: Fuselage — Tailboom Attachment — Inspection / ReplacementOct 31, 2024
- EASA AD US-2024-16-19Fuselage — Tailboom Attachment — Inspection / ReplacementOct 31, 2024
- EASA AD US-2024-19-17
Get the next one by email
New ADs and bulletins for these 6 aircraft types, summarized like this page, every Monday.