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Airworthiness Directive

AD 2008-13-28 73 FR 37791 Active

Federal Aviation Administration · 14 CFR part 39

Requires initial and repetitive eddy current inspections (ECI), of the area around the lubrication holes of the hub blade sockets.

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FR document
E8-14312
Amendment
39-15591
Published
2008-07-02
Effective
2008-07-17
Models covered
3

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2008-13-28 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

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AD

2008-13-28

FR doc E8-14312 · 73 FR 37791

AD 2008-13-28Published 2008-07-02Effective 2008-07-17

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires initial and repetitive eddy current inspections (ECI), of the area around the lubrication holes of the hub blade sockets.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for Hartzell Propeller Inc. left-hand rotating ( )HC-( )(2,3)Y(K,R)-2 two- and three-bladed, aluminum hub, "compact" series propellers, with hubs having a non-suffix serial number, and lubrication holes located on the shoulder of the hub blade socket. These propellers are installed on Lycoming Engines LIO-360 series and LO-360 series reciprocating engines installed on Piper Aircraft, Inc. Seneca PA-34-200 and Seminole PA-44-180, and Hawker Beechcraft Corporation Model 76 Duchess, airplanes. This AD requires initial and repetitive eddy current inspections (ECI), of the area around the lubrication holes of the hub blade sockets. This AD results from four reports of propeller hub cracks, including two in-flight blade separation events. We are issuing this AD to prevent failure of the propeller hub, which could result in blade separation and loss of control of the airplane.

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All Beechcraft Duchess directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab) Print AD packet (opens the full Federal Register document in a new tab)

Applies to 3 models in our index