# AD 85-18-03: Stage 1 Turbine Disk

- Type: Airworthiness directive
- Status: Current
- Products: General Electric CF700-2D, CF700-2D-2, CJ610-8A and CJ610-9
- Effective: November 15, 1985
- Superseded by: Nothing supersedes this AD
- Product type: Engine
- Amendment: 39-5130
- Registered aircraft: 67 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2EDE4C77E2DAF75586256840005FFF77.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/85-18-03

## The airworthiness directive

85-18-03 GENERAL ELECTRIC COMPANY: Amendment 39-5130. Applies to General Electric Model CJ610-8A, -9, and CF700-2D, -2D-2 turbine engines.

Compliance is required as indicated unless already accomplished.

To prevent failure of the stage 1 turbine disk, P/N 5011T75P01, with serial numbers beginning with the letters GATSRM, accomplish the following:

Remove the disk from service in accordance with General Electric Alert SBs (CJ610) A72-142 or (CF700) A72-145, dated August 30, 1983, at or prior to accumulating 5,000 total cycles.

Aircraft may be ferried in accordance with the provisions of FAR 21.197 and 21.199 to a base where the AD can be accomplished.

Upon request, an alternative means of compliance may be approved by the Manager, Engine Certification Office, Aircraft Certification Division, New England Region, Federal Aviation Administration, 12 New England Executive Park, Burlington, Massachusetts 01803.

The General Electric Alert SBs (CJ610) A72-142 and (CF700) A72-145, dated August 30, 1983, described in this directive are incorporated herein and made part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received the SBs from the manufacturer may obtain copies upon request to Project Manager, CJ610/CF700, General Electric Company, 1000 Western Avenue, Lynn, Massachusetts 01910. These documents also may be examined at the Office of the Regional Counsel, Federal Aviation Administration, New England Region, Rules Docket No. 83-ANE-24, 12 New England Executive Park, Burlington, Massachusetts 01803, between the hours of 8:00 a.m. and 4:30 p.m., Monday through Friday, except Federal holidays.

This amendment becomes effective on November 15, 1985.

## Affected data sheets (2) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1E16](https://openairdocs.org/tcds/1E16): General Electric Company; names 2 of 7 models: CJ610-8A, CJ610-9
- [TCDS E7EA](https://openairdocs.org/tcds/E7EA): General Electric Company; names 2 of 3 models: CF700-2D, CF700-2D-2

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 67 (0 by airframe model, 67 by engine model)
- Makers: Dassault/Sud 20, Gates Lear Jet 15, Learjet 13, Gates Learjet 7, Dassault-Breguet 3, Aero Commander 2, Classic Fighter Industries 1, Dassault Breguet 1, Hamm Dennis DBA Pacific Sunset 1, Lockheed 1

Models with the most aircraft:

- [GE CJ610-SER series](https://openairdocs.org/engine/ge-cj610-ser-series): 31 aircraft (engine model)
- [GE CF700 series](https://openairdocs.org/engine/ge-cf700-series): 27 aircraft (engine model)
- [GE CJ-610-8A](https://openairdocs.org/engine/ge-cj-610-8a): 9 aircraft (engine model)

All 3 models: https://openairdocs.org/ad/85-18-03/models.md
Every aircraft: https://openairdocs.org/ad/85-18-03/aircraft.md

Its text cites no advisory circulars or STCs.

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