The US Federal Aviation Administration has issued an airworthiness directive (AD) to owners of some 20,000 Beech, Bellanca, Cessna, Piper and Wing light aircraft. The directive requires immediate de-activation or removal of a modified, inflatable door seal installed to reduce cabin noise. If the seal is punctured, the electric air pump may continue to run and could overheat, the FAA says. The AD bars further installations of the seal, which is produced by Santa Paula, California-based Bob Fields Aerocessories.

Source: Flight International