80-19-03: Fifth Stage Compressor Disks
FAA order 80-19-03 is an airworthiness directive in force since October 7, 1980. The FAA's subject line: Fifth Stage Compressor Disks. It names the Pratt & Whitney JT3D series engine: about 2 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
- Engine
- Makes
- Pratt & Whitney Division
- Models
- JT3D-1-MC7
- Engine series
- Pratt & Whitney JT3D series 2 aircraft
Dates and paperwork
- In force since
- October 7, 1980
- 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 (797 characters)
80-19-03 PRATT & WHITNEY AIRCRAFT: Amendment 39-3911. Applies to all Pratt & Whitney Aircraft JT3D-1-MC7 turbofan engine models.
Compliance required not later than December 31, 1980.
To preclude high cycle fatigue cracking of fifth stage compressor disks which could result in disk fracture, retire from service all fifth stage compressor disks, P/N 426505, and replace with either disk P/N 697105 or P/N 749605.
Upon submission of substantiating data, through an FAA Aviation Safety Inspector, the Chief, Engineering and Manufacturing Branch, New England Region, may adjust the compliance date.
A historical file on this AD is maintained in full by the FAA at its headquarters in Washington, D.C., and at the New England Region.
This amendment becomes effective October 7, 1980.
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 October 7, 2026. Connections as data: /graph/directive/80-19-03.json · aircraft systems.