AD 75-09-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sundance Balloons (US) | AX-6 | Airworthiness Directives; Piccard Balloons Hot Air Balloon Model AX-6 |
Unsafe Condition
Fuel system failure or an inflight fire due to potential failure of the valve actuating lever roll pin, valve stem seal leakage, improper valve seat retaining screw torque, or water contamination in fuel system.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove and inspect valve actuating lever roll pin P/N 7553S-8, replace 'O' ring stem seal with Rego P/N 1421-7, lubricate new seal, check valve seat screw torque to 10 in-lbs with thread locking compound, reinstall components with cotter pin or machine screw, update flight manual with warning on water contamination and methanol addition.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
prior to further flight unless previously accomplished within one year prior to the effective date of this AD, and thereafter at intervals not to exceed the annual inspection or 100 hours time in service, whichever occurs earlier
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Piccard Balloons Hot Air Balloon Model AX-6 with Rego Blast Valves P/N 7553S Series
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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