60-13-04: Rotor Shank Rod
FAA order 60-13-04 is an airworthiness directive. The FAA's subject line: Rotor Shank Rod. It names Sikorsky S-55: about 15 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: other and general.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Orlando Helicopter Airways, Inc.; Sikorsky Aircraft Corporation
- Models
- HRS-1/CH-19, HRS-3/H-19B, S-51, S-55, S-55B, S-55C
- On this site
- Sikorsky S-55 15 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 (1,335 characters)
60-13-04 SIKORSKY: Amdt. 171 Part 507 Federal Register June 24, 1960. Applies to All Models S-51 and S-55 Helicopters.
Compliance required by August 15, 1960.
A fatigue failure of the RE5M7 shank rod end bearing has occurred in the S-55 main rotor upper controls. This rod had a hollow shank rather than a solid shank and is not an approved part. Preliminary investigation indicates that the hollow shank part has been installed in S-51 and S-55 helicopters because of improper identification. To ensure removal of this part from service, the following must be accomplished:
Unless already accomplished, remove the following rod assemblies and inspect for RE5M7 rod end bearings with hollow shanks and S510085 pivots with hollow shanks, as noted (S510085 pivots are altered RE5M7 rod ends.)
(a) Model S-51 main rotor assembly, P/N S510000.
(1) P/N S510333 (Alternate P/N S510140) rod assembly contains one RE5M7 rod end.
(2) P/N S510082 rod assembly contains one RE5M7 rod end and one P/N S510085 pivot.
(b) Model S-51 main rotor assembly, P/N S10-10-1100.
(1) P/N S510333 rod assembly contains one RE5M7 rod end.
(c) Model S-55 servo unit assembly, P/N S14-40-5000.
(1) P/N S14-40-5024 control arm contains one RE5M7 rod end.
Remove all hollow shank units and replace with solid shank units.
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/60-13-04.json · aircraft systems.