AD 78-17-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney Canada Corp. | JT15D-4 | PRATT & WHITNEY AIRCRAFT OF CANADA, LIMITED Model JT15D-4 Engines |
Unsafe Condition
Fuel leakage from the fuel manifold adapter assemblies (Part Numbers 3023031 and 3023035).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the Part Number 3023031 and 3023035 fuel manifold adapter assemblies with Part Number 3021699 and 3021698 assemblies in accordance with Service Bulletin No. 7087 or approved equivalent parts. Equivalent parts must be approved by the Chief, Engineering and Manufacturing Branch of the Eastern Region FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 50 hours in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
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.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Fuel Manifold Adapter Assemblies
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_78-17-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 78-17-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: PRATT & WHITNEY AIRCRAFT OF CANADA, LIMITED Model JT15D-4 Engines Subject: Fuel Manifold Adapter Assemblies Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/31/1978 Make: Pratt & Whitney Canada Corp. Model: JT15D-4 Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 78-17-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3286 AD NUMBER: 78-17-06 SUBJECT HEADING: PRATT & WHITNEY AIRCRAFT OF CANADA, LIMITED Model JT15D-4 Engines ACTION: SUMMARY: DATES: Effective August 31, 1978. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 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. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_78-17-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 78-17-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: PRATT & WHITNEY AIRCRAFT OF CANADA, LIMITED Model JT15D-4 Engines Subject: Fuel Manifold Adapter Assemblies Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/31/1978 Make: Pratt & Whitney Canada Corp. Model: JT15D-4 Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 78-17-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3286 AD NUMBER: 78-17-06 SUBJECT HEADING: PRATT & WHITNEY AIRCRAFT OF CANADA, LIMITED Model JT15D-4 Engines ACTION: SUMMARY: DATES: Effective August 31, 1978. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 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. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.