48-11-04: Hydraulic Pump Handle

FAA order 48-11-04 is an airworthiness directive. The FAA's subject line: Hydraulic Pump Handle. System: heating, ice protection and utility systems.

What it applies to as the FAA lists it

Kind of product: Aircraft
Makes: Sky Enterprises, Inc.
Models: RC-3

Dates and paperwork

Docket: Unknown
Status: Current
The FAA's document: Read the order on the FAA's site

The order itself the regulatory text, as published

Show the full text (507 characters)

48-11-04	REPUBLIC:  Applies to Model RC-3 Aircraft. 

Compliance required by April 15, 1948. 

To provide security for the hydraulic pump handle attachment, the four self-locking nuts now used should be replaced by three AN 310-4 and one AN 310-5 castle nuts and cotters.  The fulcrum bolt is already drilled for a cotter.  The present clevis bolts may be drilled for the cotter or may be replaced by two AN 24-17 and one AN 24-13 clevis bolts. 

(Republic Service Bulletin No. 22 covers this same subject.)

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/48-11-04.json · aircraft systems.