# AD 72-16-03: Turbine Discs

- Type: Airworthiness directive
- Status: Current
- Products: General Electric CF6-6D and CF6-6D1
- Effective: August 8, 1972
- Superseded by: Nothing supersedes this AD
- Product type: Engine
- Amendment: 39-1495
- Registered aircraft: 11 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EEC6927B4BD33A058625685B0059A00C.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/72-16-03

## The airworthiness directive

72-16-03 GENERAL ELECTRIC: Amendment 39-1495. Applies to Models CF6-6D and CF6-6D1 turbofan engines.

Compliance required as indicated.

To prevent cracking and possible failure of stage 2 high pressure turbine discs, unless already accomplished, remove from service stage 2 high pressure turbine discs Part No. 9687M40P03, P04, P05, or P06 prior to reaching a life limit of 2100 cycles.

For the purposes of this AD, the definition of cycles is that appearing in the CF6 Shop Manual GEK 9266 Section 72-00-00 Inspection page 301.

(General Electric Alert Service Bulletin CF6 72-320 pertains to this subject.)

This amendment is effective August 8, 1972.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS E23EA](https://openairdocs.org/tcds/E23EA): General Electric Company; names 2 of 18 models: CF6-6D, CF6-6D1

## 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: 11 (0 by airframe model, 11 by engine model)
- Makers: Boeing 6, Mcdonnell Douglas 3, Airbus Industrie 2

Models with the most aircraft:

- [GE CF6-6 series](https://openairdocs.org/engine/ge-cf6-6-series): 9 aircraft (engine model)
- [GE CF6-6D](https://openairdocs.org/engine/ge-cf6-6d): 2 aircraft (engine model)

All 2 models: https://openairdocs.org/ad/72-16-03/models.md
Every aircraft: https://openairdocs.org/ad/72-16-03/aircraft.md

Its text cites no advisory circulars or STCs.

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