FAA orders · airworthiness directive · current

2004-07-25: New design blades

FAA order 2004-07-25 is an airworthiness directive in force since May 21, 2004. The FAA's subject line: New design blades. System: propeller.

What it applies to as the FAA lists it

Kind of product: Propeller
Makes: Hartzell Propeller, Inc.
Models: HC-B5MP-3

Dates and paperwork

In force since: May 21, 2004
Published: April 16, 2004 (signed March 30, 2004)
Docket: 2003-NE-44-AD
Replaces: 87-16-02
Status: Current
The FAA's document: Read the order on the FAA's site

The FAA's summary their words, unchanged

The FAA is superseding an existing airworthiness directive (AD) for Hartzell Propeller Inc. Model HC-B5MP-3C/M10876K propellers, installed on Short Brothers Model SD3-60 airplanes. That AD currently requires initial and repetitive removal, disassembly, inspection, and rework if necessary of Hartzell Propeller Inc. Model HC-B5MP-3C/M10876K propellers until blades are replaced with new design blades, no later than March 31, 1988. This ad requires installation of new design blades before further flight, on Hartzell Propeller Inc. Models HC-B5MP-3C/ M10876K propellers. This AD supersedure is prompted by a review of all currently effective ADs, which found that AD 87-16-02 was not published in the Federal Register to make it effective to all operators, as opposed to just the operators who received actual notice of the original AD. We are issuing this AD to prevent propeller blade separation near the hub, which could result in engine separation from the airplane.

The order itself the regulatory text, as published

Show the full text (1,576 characters)

2004-07-25 Hartzell Propeller Inc.: Amendment 39-13569. Docket No. 2003-NE-44-AD. Supersedes Priority Letter AD 87-16-02. 

Effective Date 

	(a) This AD becomes effective May 21, 2004. 

Affected ADs 

	(b) This AD supersedes Priority Letter AD 87-16-02 

Applicability 

	(c) This AD applies to Hartzell Propeller Inc. Model HC-B5MP-3C/ M10876K propellers. These propellers are installed on, but not limited to, Short Brothers Model SD3-60 airplanes. 

Unsafe Condition 

	(d) This AD is prompted by a review of all currently effective ADs, which found that AD 87-16-02 was not published in the Federal Register to make it effective to all operators, as opposed to just the operators who received actual notice of the original AD. We are issuing this AD to prevent propeller blade separation near the hub, which could result in engine separation from the airplane. 

Compliance 

	(e) You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. 

Required Actions 

	(f) Before further flight, replace propeller blades Model M10876K with blades Model M10876ASK. 

	(g) After the effective date of this AD, do not install propeller blades Model M10876K on any airplane. 

Alternative Methods of Compliance 

	(h) The Manager, Chicago Aircraft Certification Office, has the authority to approve alternative methods of compliance for this AD if requested using the procedures found in 14 CFR 39.19. 

Material Incorporated by Reference 

	(i) None. 

Related Information 

	(j) None.

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/2004-07-25.json · aircraft systems.