Models Affected: PA-28, PA-32, PA-34, PA-44 (check bulletin pdf for complete list and other specifics)
Subject: Forward Wing Spar-to-Fuselage Attach Fitting Corrosion Inspection
PURPOSE: Some of the affected aircraft may have corrosion at the forward wing attach fittings and forward wing spars. Aircraft operating in high salt or high humidity environments, such as coastal locations, are particularly susceptible. This service bulletin mandates an initial and recurring inspection of the forward wing attach fittings and forward wing spars for corrosion and, on condition, replacement of the fittings and either cleaning the spars of corrosion and returning them to service (if structural integrity and minimum material thickness can be retained after removal of corrosion) or replacement of the spars.
