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EXEC ADVISORY SERVICE BULLETIN A-06

ROTORWAY EXEC 90 · Service Bulletins

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Overview

This document is an advisory service bulletin for the RotorWay EXEC 90 helicopter, detailing the recommended upgrade from a 1-1/2 inch diameter main rotor shaft to a 1-3/4 inch diameter mainshaft. The upgrade is said to improve performance and component life.

  • The EXEC 90 is equipped with a 1-3/4 inch diameter main rotor shaft.
  • The 1-3/4 inch shaft offers increased strength and improved performance.
  • The conversion to the larger mainshaft is strongly recommended for EXEC helicopters.
  • The old 1-1/2 inch mainshaft is no longer supported by RotorWay International.
  • If the old shaft was purchased, conversion to the larger shaft is mandatory.

Document

Source

Originally published by rotorwaydocumentation.link. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.

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Document details

Type
·
Service Bulletins
Year
·
1992
File size
·
38 KB
Publisher
·
rotorwaydocumentation.link
Language
·
en

Specifications & performance

Extracted from this document.

Specifications

Mainshaft diameter inch
·
1-3/4
Old mainshaft diameter inch
·
1-1/2
About this document
What is the EXEC ADVISORY SERVICE BULLETIN A-06?

The EXEC ADVISORY SERVICE BULLETIN A-06 is a service bulletins for the ROTORWAY EXEC 90, dated 1992.

Where does the EXEC ADVISORY SERVICE BULLETIN A-06 come from?

This copy of the EXEC ADVISORY SERVICE BULLETIN A-06 was originally published by rotorwaydocumentation.link and is hosted on Sprinkle as a free, searchable reference copy.

What year was the EXEC ADVISORY SERVICE BULLETIN A-06 published?

The EXEC ADVISORY SERVICE BULLETIN A-06 — the ROTORWAY EXEC 90 service bulletins on file — is dated 1992.

Documentation completeness
2/7

Most owners only have the POH. Here's the essential set for the ROTORWAY EXEC 90.

More ROTORWAY EXEC 90manuals & documents

Full document text

May 15, 1992 TO ALL EXEC BUILDERS EXEC ADVISORY SERVICE BULLETIN A-06 History: RotorWay International recommends, sells and services only the 1-3/4 inch diameter main rotor shaft and related components, and does not sell or service the 1-1/2 inch diameter shaft that was manufactured by RotorWay Aircraft, as equipped on the EXEC. Action: The EXEC 90 is equipped with a 1-3/4 inch diameter mainshaft. The increased strength of this shaft combined with larger bearings and an innovative slider ball system has resulted in improved performance and component life. The larger EXEC 90 mainshaft may be fitted to the EXEC helicopter, and this conversion is strongly recommended. If you have purchased the old style 1-1/2 inch mainshaft from RotorWay International, the conversion to the larger shaft is considered mandatory.