AD 48-34-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aircraft Dusting & Spraying | Sulphur Dusting | Airworthiness Directives; Applies to All Aircraft Engaged In Sulphur Dusting |
Unsafe Condition
Exhaust gases discharging under or along the bottom of the airplane, un-bonded fuselage aft of the hopper, inadequate agitator bearings, non-compliant hopper gate materials, and insufficient fire-resistant protection on fuselage surfaces during sulphur dusting operations could lead to fire hazards.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install exhaust systems that prevent exhaust gas discharge under or along the fuselage bottom; bond fuselage aft of the hopper and adjacent fittings/struts; provide agitator with sealed bearings or ensure bearings are accessible for lubrication; use nonferrous hopper gate material properly fitted and bonded; cover fuselage surfaces near spreader discharge with fire-resistant material and secure to prevent dust accumulation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
By October 1, 1948, if previously certificated and Airworthiness Maintenance Bulletin No. 63 has not been complied with.
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Affected Aircraft
All aircraft engaged in sulphur dusting operations.
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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