AD 75-11-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Eagle Balloons Corp. | Challenger | Airworthiness Directives; Semco Balloons Model T, TC-4A and Challenger Balloons |
| aircraft | Eagle Balloons Corp. | T | Airworthiness Directives; Semco Balloons Model T, TC-4A and Challenger Balloons |
| aircraft | Eagle Balloons Corp. | TC-4A | Airworthiness Directives; Semco Balloons Model T, TC-4A and Challenger Balloons |
Unsafe Condition
Improper owner/operator assembly of the deflation system has resulted in excessive force being required to operate the deflation cable and fraying of the deflation cable end. The frayed cable end may draw deflation sleeve material into the hole in the locking block and brass rod preventing proper operation of the deflation system.
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Required Actions
Prior to each flight until the revised Balloon Flight Manual is incorporated, check the deflation cable end for fraying or loose strands and ensure proper cable routing. Within 20 hours time in service after the effective date, obtain and incorporate Revision 1 or later FAA-approved revision to the Balloon Flight Manual.
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Compliance Time
Prior to each flight after the effective date until the revised Balloon Flight Manual is incorporated, and within 20 hours time in service after the effective date of this AD.
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Affected Aircraft
Semco Balloons Model T, TC-4A, and Challenger balloons certificated in the Balloon category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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