AD 2006-07-15
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Quality Aerospace | Various | Airworthiness Directives; Thrush Aircraft, Inc. Model 600 S2D and S2R (S-2R) Series Airplanes |
Unsafe Condition
Fatigue cracking in the ¼-inch and ¼-inch bolt hole areas on the lower wing spar caps could lead to lower wing spar cap failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Increase the frequency of repetitive inspections for fatigue cracking in the ¼-inch and ¼-inch bolt hole areas on the lower wing spar caps for Groups 1, 2, 3, and 6 airplanes. Decrease the time-in-service (TIS) for the initial inspection on Group 2 airplanes. Replace or repair any lower wing spar cap where fatigue cracking is found.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the specified time intervals as outlined in the AD for each group of airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Thrush Aircraft, Inc. Model 600 S2D and S2R (S-2R) series airplanes, grouped into six categories based on usage and configuration.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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