Friday, December 4, 2015

Piper Aircraft - Rear Spar Corrosion

            The FAA recommends that owners and operators incorporate the actions in Piper SBs 789A, 977, and 1006 based on the applicability of the individual SB. Due to similarity of design (steel plate 66762-00 adjacent to aluminum spar) and since improper maintenance or painting procedures have been a contributing factor in past service reports, all PA-28, PA-32, PA-34, and PA-44 airplanes are susceptible to this corrosion development. 
             Therefore, the inspections in the SBs should be implemented for all PA-28, PA-32, PA-34, and PA-44 models. We recommend that all the actions be taken within 100 hours. We further recommend inspection and incorporation as soon as feasible, but no more than 100 hours, for those airplanes at higher risk due to age, environment, lack of protective coatings, etc., as discussed above. We also recommend that owners and operators incorporate the actions in Piper SB 1244B following the compliance time in the SB.

SAIB: CE-11-12R1  Date: December 2, 2015

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