AD 88-17-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Schempp-Hirth Flugzeugbau | Mini-Nimbus B | Airworthiness Directives; SCHEMPP-HIRTH GMBH Models Nimbus-2B, Janus B, and Mini-Nimbus B Gliders |
| aircraft | Schempp-Hirth Flugzeugbau | Nimbus-2B | Airworthiness Directives; SCHEMPP-HIRTH GMBH Models Nimbus-2B, Janus B, and Mini-Nimbus B Gliders |
Unsafe Condition
Failure of the elevator drive bracket, part number 30.055, due to cracks adjacent to the welds on both sides of the bracket, leading to loss of pitch control.
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Required Actions
Within 10 hours time in service after the effective date, and every 50 hours thereafter, visually inspect the elevator drive bracket using a 5-power magnifying glass for cracks near the welds as per the manufacturer's technical notes. Replace the bracket with part number 30.055 modification 'a' if cracks are found or by November 30, 1988.
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Compliance Time
Within the next 10 hours time in service after the effective date, and thereafter at intervals not to exceed 50 hours time in service from the last inspection. Replacement must be completed before further flight if cracks are found or prior to November 30, 1988.
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Affected Aircraft
Schempp-Hirth Flugzeugbau Models Nimbus-2B, Janus B, and Mini-Nimbus B gliders certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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