AD 82-16-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Pratt & Whitney Division | JT9D-20 | PRATT & WHITNEY AIRCRAFT Model JT9D-20 Engines |
Unsafe Condition
B flange separation under adverse conditions
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Required Actions
Rework fan exit case assembly, incorporate riveted segmented strengthening plates along with improved B flange attachment hardware, and reidentify components in accordance with Service Bulletin No. 5335.
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Compliance Time
prior to March 31 1984
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Affected Aircraft
Pratt & Whitney Aircraft Model JT9D-20 engines installed in wing positions on DC-10-40 aircraft
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Federal Register Abstract
Fan Exit Case Assembly
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_82-16-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 82-16-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: PRATT & WHITNEY AIRCRAFT Model JT9D-20 Engines Subject: Fan Exit Case Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/16/1982 Make: Pratt & Whitney Division Model: JT9D-20 Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 82-16-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4417 AD NUMBER: 82-16-10 SUBJECT HEADING: PRATT & WHITNEY AIRCRAFT Model JT9D-20 Engines ACTION: SUMMARY: DATES: Effective August 16, 1982. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 82-16-10 PRATT & WHITNEY AIRCRAFT: Amendment 39-4417. Applies to all JT9D-20 engines installed in wing positions on DC-10-40 aircraft. Compliance required on installed engines prior to March 31 1984, unless already accomplished. To preclude "B" flange separation under adverse conditions, rework fan exit case assembly, incorporate riveted segmented strengthening plates along with improved "B" flange attachment hardware, and reidentify components in accordance with Pratt & Whitney JT9D-20 Service Bulletin No. 5335, dated September 3, 1981, or later revision approved by the Chief, Engine Certification Branch, FAA, New England Region. NOTE: Rework, replacement, and addition of various airframe brackets are necessary to ensure compatibility with the flange modifications specified in Pratt & Whitney Aircraft Service Bulletin No. 5335. All persons affected by this directive who have not already received the referenced service bulletin from the manufacturer may obtain copies upon request to Pratt & Whitney Aircraft, Division of United Technologies Corporation, 400 Main Street, East Hartford, Connecticut 06108. This document may also be examined at Federal Aviation Administration, New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803. A historical file on this AD which includes the material in full is maintained by the FAA at the New England Region Office. This amendment becomes effective on August 16, 1982. FOOTER:
Document Text
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AD Final Rules - DRS_82-16-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 82-16-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: PRATT & WHITNEY AIRCRAFT Model JT9D-20 Engines Subject: Fan Exit Case Assembly Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/16/1982 Make: Pratt & Whitney Division Model: JT9D-20 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: AIRWORTHINESS DIRECTIVES FINAL RULES: 82-16-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4417 AD NUMBER: 82-16-10 SUBJECT HEADING: PRATT & WHITNEY AIRCRAFT Model JT9D-20 Engines ACTION: SUMMARY: DATES: Effective August 16, 1982. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 82-16-10 PRATT & WHITNEY AIRCRAFT: Amendment 39-4417. Applies to all JT9D-20 engines installed in wing positions on DC-10-40 aircraft. Compliance required on installed engines prior to March 31 1984, unless already accomplished. To preclude "B" flange separation under adverse conditions, rework fan exit case assembly, incorporate riveted segmented strengthening plates along with improved "B" flange attachment hardware, and reidentify components in accordance with Pratt & Whitney JT9D-20 Service Bulletin No. 5335, dated September 3, 1981, or later revision approved by the Chief, Engine Certification Branch, FAA, New England Region. NOTE: Rework, replacement, and addition of various airframe brackets are necessary to ensure compatibility with the flange modifications specified in Pratt & Whitney Aircraft Service Bulletin No. 5335. All persons affected by this directive who have not already received the referenced service bulletin from the manufacturer may obtain copies upon request to Pratt & Whitney Aircraft, Division of United Technologies Corporation, 400 Main Street, East Hartford, Connecticut 06108. This document may also be examined at Federal Aviation Administration, New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803. A historical file on this AD which includes the material in full is maintained by the FAA at the New England Region Office. This amendment becomes effective on August 16, 1982. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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