AD 95-03-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Hartzell Propeller, Inc. | HC-B4TN-3 | Hartzell Propeller Inc. Model HC-B4TN-3/T10173F(N)(B,K)-12.5 and HC-B4TN-3A/T10173F(N)(B,K)-12.5 Propellers |
Unsafe Condition
Fatigue cracks in the propeller hub arm bore and resonant speed shifting into the permitted ground idle operating range may result in hub arm and blade departure, leading to loss of aircraft control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect and rework or retire propeller hub assemblies and blades per Hartzell ASB A196A. Replace rejected blades with inspected or new assemblies. Replace hubs with those having compressive rolled bores or with inspected hubs marked with 'M' suffix. Follow repetitive inspection intervals of 3,000 hours TIS or 60 calendar months for blades and 600 hours TIS or 60 calendar months for hubs.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 150 hours Time-In-Service or the next 12 calendar months after the effective date (March 17, 1995), whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Hartzell Propeller Inc. Models HC-B4TN-3/T10173F(N)(B,K)-12.5 and HC-B4TN-3A/T10173F(N)(B,K)-12.5 propellers installed on Beech A100 and A100A aircraft.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.