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 proposed an expansion of an existing airworthiness directive (AD) to address corrosion concerns on additional Cessna 210 models (R and N) and all Cessna 177 Cardinal aircraft.
- This proposed AD was prompted by the 2019 in-flight breakup of a Cessna T210M due to fatigue cracking initiated by a corrosion pit in the carry-thru spar, leading to wing separation.
- The proposed AD mandates visual and eddy current inspections of the carry-thru spar lower cap, requiring protective coatings and corrosion inhibiting compounds if necessary, and immediate removal from service if cracks are identified.
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