AD 66-30-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dornier-Werke GmbH | Do 28 B-1 | Airworthiness Directives; Dornier Model DO 28 B-1 Series Airplanes |
Unsafe Condition
Cracks in the welded hinge brackets P/N 28.315-01 H01 on the stabilizer front spars in the area of the upper and lower spar flanges.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect the brackets using a lamp, mirror, and three-powered glass within 10 hours' time in service after the effective date. If cracks less than 1/2 inch are found, repeat inspections at intervals not exceeding 10 hours until 100 hours' time in service, then replace with P/N 28.315-01 H03 or FAA-approved equivalent. If cracks over 1/2 inch are found, replace immediately before next flight. Discontinue inspections after installing the new bracket.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 10 hours' time in service after the effective date of the AD, unless already accomplished within the last 90 hours' time in service before the effective date
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Affected Aircraft
Dornier-Werke GmbH Model DO 28 B-1 Airplanes
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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