AD 75-15-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dowty Propellers | (c) R212/4-30-4/ | DOWTY ROTOL Model (c) R212/4-30-4/22 Propellers |
Unsafe Condition
Cracking of the propeller hub front wall/snout radius areas between the eyebolt guides.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect propeller hubs in accordance with Dowty Rotol Service Bulletin No. 61-828 or FAA-approved equivalent. Inspections are required at next overhaul or within 4000 hours' time in service after the AD's effective date, with subsequent intervals not exceeding 4000 hours' time in service. If a cracked hub is found, replace it before further flight and adjust inspection intervals as specified.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Compliance is required as indicated in the AD's inspection intervals (e.g., within 4000 hours' time in service after effective date, or prior to specific accumulated hours).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Dowty Propellers Model (c) R212/4-30-4/22 propellers with hub and driving center assemblies P/N 601022294, 601022211, 601022105, and RA 64883, not modified per Dowty Rotol Modification Nos. (c) VP2388 or (c) VP2779.
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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