Airworthiness directives › 2016-01-01
AD 2016-01-01 Airworthiness Directives; Piper Aircraft, Inc. Airplanes
Makes named: piper. Models named: PA-46-500TP. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Piper Aircraft, Inc. Model PA-46-500TP airplanes, serial numbers 4697001 through 4697528, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within the next 100 hours time-in-service (TIS) after February 17, 2016 (the effective date of this AD) or 12 months after February 17, 2016 (the effective date of this AD), whichever occurs first, inspect the upper skin joints for adequate sealant following Part I of Piper Aircraft, Inc. Service Bulletin No. 1262B, dated April 23, 2015. No further action per this AD is required if adequate sealant is already applied.
Unsafe condition
This AD was prompted by a report of wing upper skin joints being manufactured without sealant, which allows water to enter and stay in sealed, bonded stringers. We are issuing this AD to prevent water from entering the stringers common to the upper wing skin. Left uncorrected, corrosion could develop, and freeze/thaw cycles of water at this location could cause deformation of the skin with follow-on disbonding between the stringer flanges and the inner surface of the wing skin. Consequently, the corrosion or disbonding could reduce the structural integrity of the wing.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1