In March 2020, Flying reported on an airworthiness directive focused on corrosion concerns on most models of the Cessna 210. On Tuesday, May 11, the FAA published a Notice of Proposed Rulemaking (NPRM) that may broaden the scope of that original AD to include both the Cessna 210R and N models, as well as all models of the Cessna 177 Cardinal. An NPRM is a preliminary announcement of the FAA’s intentions that could lead to a new AD. The agency will base its final decision to proceed onto a new AD after reviewing the user comments that the NPRM is requesting.
FAA’s NPRM On Corrosion Concerns Includes Additional Cessna Singles
Key Takeaways:
- The FAA has issued a Notice of Proposed Rulemaking (NPRM) to broaden an existing airworthiness directive concerning corrosion on Cessna 210 models to include 210R and N models, as well as all Cessna 177 Cardinal aircraft.
- This proposed action is a direct response to the fatal 2019 in-flight break-up of a Cessna T210M in Australia, which was caused by wing spar failure due to fatigue cracking initiated by corrosion.
- The NPRM outlines requirements for visual and eddy current inspections of the carry-thru spar lower cap, with corrective actions ranging from applying protective coatings to immediate spar replacement if cracks are detected.
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