EASA SIB CE-12-41
Cessna (incl. formerly Reims Aviation) 177, F177, 182, F182, 206, 207, 210, 337 and F337 Series Aeroplanes — Flight Control Column Loose Glide Screw
Summary
The Special Airworthiness Information Bulletin SAIB: CE-12-41 is an FAA advisory concerning a potential loose glide screw in the flight control columns of various Cessna aircraft models, including the 177, F177, 182, F182, 206, 207, 210, 337, and F337 series. This bulletin informs owners, operators, and maintenance personnel about the risk of the glide screw backing out and jamming the elevator control system. The affected screw part numbers are NAS220-14 and MS27039-0814.
What Changed
This bulletin introduces awareness of a flight control safety concern involving a loose glide screw that can jam the elevator control system in flight. It recommends compliance with specific Cessna service bulletins SEB-27-01 or MEB-27-01, which require replacing the original screw with a lock-wired screw to prevent it from backing out. The bulletin clarifies that SB98-27-04 does not address this issue and should not be followed for this concern.
Why It Matters
This issue matters because a loose glide screw can cause elevator control jamming, posing a significant flight safety risk. Aviation professionals, including operators and maintenance organizations, need to be aware of this potential hazard to prevent in-flight control failures. Addressing this concern proactively helps maintain aircraft airworthiness and ensures safe flight operations.
What To Do
Affected stakeholders should inspect the flight control columns on the listed Cessna models and comply with Cessna service bulletins SEB-27-01 or MEB-27-01 to replace the glide screw with a lock-wired version. Operators should not rely on service bulletin SB98-27-04 for this issue. No mandatory compliance deadline is specified, but timely action is recommended to mitigate the risk.
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