AD 75-16-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dowty Propellers | (c) R.209/4-40-4.5 | DOWTY ROTOL Models R245/4-40-4.5/13, R259/4-40-4.5/17 and R209/4-40-4.5/2 Propellers |
| aircraft | Dowty Propellers | (c) R.245/4-40-4.5 | DOWTY ROTOL Models R245/4-40-4.5/13, R259/4-40-4.5/17 and R209/4-40-4.5/2 Propellers |
| aircraft | Dowty Propellers | (c) R.259/4-40-4.5 | DOWTY ROTOL Models R245/4-40-4.5/13, R259/4-40-4.5/17 and R209/4-40-4.5/2 Propellers |
Unsafe Condition
Propeller blade failures from cracks or forging defects in flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect and test specified blade serial numbers for cracks or forging defects. Repair blades in accordance with Dowty Rotol Bulletin 61-A862 or remove from service if repair is not possible. Return blades to service only if free of defects or repaired as required.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 300 hours propeller time in service after the effective date of this AD or before the accumulation of 5300 hours propeller time in service, whichever occurs later
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Dowty Propellers models R245/4-40-4.5/13, R259/4-40-4.5/17, and R209/4-40-4.5/2 propellers with specified blade serial numbers listed in the AD, used on Convair 600 series and YS-11 series airplanes.
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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