Cirrus Design Corporation (CDC) SR22 and SR22T Aeroplanes - Corrosion of Fuel Return Lines
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Cirrus SR22 and SR22T airplanes should complete Cirrus service bulletin SB 2X-28-11 R2 as soon as possible to replace and seal the fuel return lines and update the TKS tank sealant. Additionally, owners and operators are encouraged to provide feedback on the condition of the fuel lines and sealant after compliance to the FAA contact provided. No specific compliance deadline is stated.
Summary
The Special Airworthiness Information Bulletin SAIB CE-13-43R1 addresses potential corrosion issues in the fuel return lines passing through the Tecalemit Kilfrost-Sheepbridge-Stokes (TKS) deicing fluid tanks on Cirrus Design Corporation SR22 and SR22T airplanes equipped with ice protection. It highlights concerns about corrosion-induced pinholes in fuel return lines and softening of the TKS tank sealant in affected serial numbers. This bulletin provides information and recommendations but does not mandate regulatory action.
What changed
SAIB CE-13-43R1 revises the affected serial numbers for the SR22 model, correcting the range to include serial numbers 2334, 2420, and 2438 through 3961, instead of the previously stated range. It also updates the service bulletin to revision R2, which calls for replacement and sealing of the fuel return line and the use of a new TKS tank sealant that resists softening from long-term exposure to TKS fluid.
Why it matters
This bulletin is important for operators and maintenance personnel because corrosion in fuel return lines can lead to fuel leaks into the TKS tank, potentially causing fuel to vent overboard and affecting aircraft safety. The softening of the TKS tank sealant may compromise the integrity of the deicing system. Addressing these issues helps maintain aircraft airworthiness and prevents potential operational disruptions.
More for Cirrus Design Corporation SR22
All 3Get the next one by email
New ADs and bulletins for Cirrus Design Corporation SR22 and Design Corporation SR22T, summarized like this page, every Monday.