AD 96-18-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Hartzell Propeller, Inc. | HC-A3V | Hartzell Propeller Inc. Models HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC-B4T, and HC-B5M Series Propellers |
| aircraft | Hartzell Propeller, Inc. | HC-B3M | Hartzell Propeller Inc. Models HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC-B4T, and HC-B5M Series Propellers |
| aircraft | Hartzell Propeller, Inc. | HC-B3MN-3 | Hartzell Propeller Inc. Models HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC-B4T, and HC-B5M Series Propellers |
| aircraft | Hartzell Propeller, Inc. | HC-B3T | Hartzell Propeller Inc. Models HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC-B4T, and HC-B5M Series Propellers |
| aircraft | Hartzell Propeller, Inc. | HC-B4MN-5 | Hartzell Propeller Inc. Models HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC-B4T, and HC-B5M Series Propellers |
| aircraft | Hartzell Propeller, Inc. | HC-B4MP-3 | Hartzell Propeller Inc. Models HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC-B4T, and HC-B5M Series Propellers |
| aircraft | Hartzell Propeller, Inc. | HC-B4TN-3 | Hartzell Propeller Inc. Models HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC-B4T, and HC-B5M Series Propellers |
| aircraft | Hartzell Propeller, Inc. | HC-B4TN-5 | Hartzell Propeller Inc. Models HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC-B4T, and HC-B5M Series Propellers |
| aircraft | Hartzell Propeller, Inc. | HC-B5MA-3 | Hartzell Propeller Inc. Models HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC-B4T, and HC-B5M Series Propellers |
| aircraft | Hartzell Propeller, Inc. | HC-B5MP-3 | Hartzell Propeller Inc. Models HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC-B4T, and HC-B5M Series Propellers |
Unsafe Condition
The hub may have a manufacturing defect that could result in blade separation during operation.
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Required Actions
Inspect the propeller hub serial numbers and replace hubs with specific serial ranges as outlined in Table 1. Perform concurrent blade and blade clamp inspections during hub replacements over a 10-year timeframe.
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Compliance Time
before further flight
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Affected Aircraft
Hartzell Propeller Inc. models HC-A3V, HC-B3M, HC-B3T, HC-B4M, HC-B4T, and HC-B5M series propellers.
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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