AD 2004-21-02
Unsafe Condition
Cracks in the fuselage front bulkhead attachment fitting, which could result in structural failure of the bulkhead and lead to loss of control of the sailplane.
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Required Actions
Inspect the front and back of the fuselage front bulkhead attachment fitting for cracks using a fluorescent dye-penetrant or dye-check method within the next 25 hours time-in-service after November 29, 2004. Replace the attachment fitting if any cracks are found. Repeat inspections at intervals not exceeding 12 calendar months.
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Compliance Time
Within 25 hours time-in-service after November 29, 2004.
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Affected Aircraft
Przedsiebiorstwo Doswiadczalno-Produkcyjne Szybownictwa 'PZL-Bielsko' Model SZD-50-3 'Puchacz' sailplanes, all serial numbers, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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