57-19-02: Engine Cooling Fan Assembly
FAA order 57-19-02 is an airworthiness directive. The FAA's subject line: Engine Cooling Fan Assembly. It names Sikorsky S-58: about 25 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: engine.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Sikorsky Aircraft Corporation
- Models
- S-58A, S-58B, S-58BT, S-58C, S-58D, S-58DT, S-58E, S-58ET, S-58F, S-58FT, S-58G, S-58H, S-58HT, S-58J, S-58JT
- On this site
- Sikorsky S-58 25 registered
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 (506 characters)
57-19-02 SIKORSKY: Applies to all Model S-58 Helicopters.
Compliance required as soon as possible but not later than October 30, 1957.
To avoid the possibility of slippage in S-58 hydromechanical clutch due to adverse tolerance conditions replace S1635-91046-1 rollers with S1635-91065 rollers.
The new rollers are three-thousandths (0.003) larger in diameter and may be identified by their dulite finish.
(Sikorsky telegraphic message SST-1-281 dated September 12, 1957, covers the 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/57-19-02.json · aircraft systems.