EASA SIB 2010-32: WITHDRAWN - REPLACED BY EASA AD 2011-0043

What to do

Operators of affected aircraft equipped with Gables G7490, G7492, and G7493 series control panels are recommended to contact Gables Engineering support to arrange for a product upgrade and implement the modification as described in the referenced service bulletins. There is no mandatory compliance deadline, but timely action is advised to mitigate the risk.

Summary

EASA Safety Information Bulletin 2010-32 is an informational bulletin addressing the potential loss of ATC transponder transmissions caused by a loose resistor connection in Gables Engineering Inc ATC/TCAS control panels, specifically the G7490, G7492, and G7493 series. These control panels are installed on various aircraft types including Airbus A310, ATR 42, BAE Systems BAe146, Boeing 707 through 777 series, Fokker F28, Lockheed Hercules and Tristar, McDonnell Douglas DC and MD series, and Sabreliner NA-265 series. The bulletin provides guidance but does not mandate corrective action.

What changed

This bulletin informs operators of a known issue with certain Gables Engineering ATC/TCAS control panels that may cause loss of transponder transmissions due to a loose resistor connection. It replaces the previous advisory with updated information but does not introduce mandatory airworthiness directives or regulatory actions.

Why it matters

This information is important for aviation professionals because loss of ATC transponder transmissions can affect aircraft tracking and safety communications. Operators and maintenance organizations need to be aware of this potential issue to ensure continued airworthiness and operational reliability of affected aircraft. Although not mandatory, addressing the issue proactively can prevent operational disruptions.

What to do

Summary

What changed

Why it matters

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