78-17-06: Fuel Manifold Adapter Assemblies
FAA order 78-17-06 is an airworthiness directive in force since August 31, 1978. The FAA's subject line: Fuel Manifold Adapter Assemblies. It names the Pratt & Whitney Canada JT15D-4 engine: about 357 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 Canada Corp.
- Models
- JT15D-4
- Engine series
- Pratt & Whitney Canada JT15D-4 357 aircraft
Dates and paperwork
- In force since
- August 31, 1978
- 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 (1,160 characters)
78-17-06 PRATT & WHITNEY AIRCRAFT OF CANADA, LIMITED: Amendment 39-3286. Applies to all Pratt & Whitney Aircraft of Canada, Limited JT15D-4 engines prior to Serial Number PCE-70111 and Pratt & Whitney Aircraft JT15D-4 engines prior to Serial Number P-70111 with Part Number 3023031 and 3023035 fuel manifold adapter assemblies.
Compliance required within the next 50 hours in service after the effective date of this AD, unless already accomplished.
To preclude fuel leakage from the fuel adapter assemblies, replace the Part Number 3023031 and 3023035 fuel manifold adapter assemblies with Part Number 3021699 and 3021698 fuel manifold adapter assemblies in accordance with Paragraph 2, Accomplishment Instructions in Pratt & Whitney Aircraft of Canada, Limited Service Bulletin No. 7087 as revised or approved equivalent parts.
Aircraft may be flown to a base for performance of maintenance required by this AD per FAR 21.197 or FAR 21.199.
All equivalent parts must be approved by the Chief, Engineering and Manufacturing Branch of the Eastern Region of the Federal Aviation Administration (FAA).
This amendment is effective August 31, 1978.
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 5, 2026. Connections as data: /graph/directive/78-17-06.json · aircraft systems.