AD 84-26-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | CFM International, S.A. | CFM56-2 | CFM INTERNATIONAL Model CFM 56-2 Engines |
Unsafe Condition
Fuel injectors without heat shields can cause flameouts in CFM56-2 engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace fuel injectors P/N 9984M90G20 with P/N 9984M90G28 or P/N 9984M90G14 in accordance with CFM56 SB 73-021, or approved fuel nozzles per SBs 73-024 and 73-034, or FAA approved equivalent.
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Compliance Time
Within 30 days of the effective date of this AD for engines using JP-4 fuel or mixtures containing JP-4; by January 31, 1986 for engines using only Jet A fuel.
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Affected Aircraft
CFM International Model CFM56-2 engines with fuel injectors P/N 9984M90G20.
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Federal Register Abstract
Fuel Injector
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_84-26-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 84-26-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: CFM INTERNATIONAL Model CFM 56-2 Engines Subject: Fuel Injector Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 02/22/1985 Make: CFM International, S.A. Model: CFM56-2 Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 84-26-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4976 AD NUMBER: 84-26-03 SUBJECT HEADING: CFM INTERNATIONAL Model CFM 56-2 Engines ACTION: SUMMARY: DATES: Effective February 22, 1985. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 84-26-03 CFM INTERNATIONAL: Amendment 39-4976. Applies to all Model CFM 56-2 turbofan engines incorporating fuel injector P/N 9984M90G20. Compliance is required as indicated unless already accomplished. To prevent flameouts in engines equipped with fuel injectors without heat shields, accomplish the following: Replace all fuel injectors, P/N 9984M90G20 with P/N 9984M90G28 or P/N 9984M90G14 fuel injectors in accordance with CFM56 SB 73-021, or approved fuel nozzles in accordance with SBs 73-024 and 73-034, or FAA approved equivalent. (a) For engines being operated with JP-4 fuel (or equivalent) or with a mixture containing JP-4, compliance is required within 30 days of the effective date of this AD. (b) For engines which are operated only with Jet A fuel (or equivalent), compliance is required by January 31, 1986. Aircraft may be ferried in accordance with the provisions of Federal Aviation Regulations (FARs) 21.197 and 21.199 to a base where the AD can be accomplished. Upon request, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Engine Certification Office, Aircraft Certification Division, FAA, New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803. The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received this document from the manufacturer may obtain copies upon request to CFM International, Neumann Way, Cincinnati, Ohio 45215. This document also may be examined at the Office of the Regional Counsel, FAA, New England Region, Attn: Rules Docket No. 83-ANE-30, 12 New England Executive Park, Burlington, Massachusetts 01803, weekdays, except Federal Holidays, between 8:00 a.m. and 4:30 p.m. This amendment becomes effective on February 22, 1985. FOOTER:
Document Text
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AD Final Rules - DRS_84-26-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 84-26-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: CFM INTERNATIONAL Model CFM 56-2 Engines Subject: Fuel Injector Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 02/22/1985 Make: CFM International, S.A. Model: CFM56-2 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: 84-26-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4976 AD NUMBER: 84-26-03 SUBJECT HEADING: CFM INTERNATIONAL Model CFM 56-2 Engines ACTION: SUMMARY: DATES: Effective February 22, 1985. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 84-26-03 CFM INTERNATIONAL: Amendment 39-4976. Applies to all Model CFM 56-2 turbofan engines incorporating fuel injector P/N 9984M90G20. Compliance is required as indicated unless already accomplished. To prevent flameouts in engines equipped with fuel injectors without heat shields, accomplish the following: Replace all fuel injectors, P/N 9984M90G20 with P/N 9984M90G28 or P/N 9984M90G14 fuel injectors in accordance with CFM56 SB 73-021, or approved fuel nozzles in accordance with SBs 73-024 and 73-034, or FAA approved equivalent. (a) For engines being operated with JP-4 fuel (or equivalent) or with a mixture containing JP-4, compliance is required within 30 days of the effective date of this AD. (b) For engines which are operated only with Jet A fuel (or equivalent), compliance is required by January 31, 1986. Aircraft may be ferried in accordance with the provisions of Federal Aviation Regulations (FARs) 21.197 and 21.199 to a base where the AD can be accomplished. Upon request, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Engine Certification Office, Aircraft Certification Division, FAA, New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803. The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received this document from the manufacturer may obtain copies upon request to CFM International, Neumann Way, Cincinnati, Ohio 45215. This document also may be examined at the Office of the Regional Counsel, FAA, New England Region, Attn: Rules Docket No. 83-ANE-30, 12 New England Executive Park, Burlington, Massachusetts 01803, weekdays, except Federal Holidays, between 8:00 a.m. and 4:30 p.m. This amendment becomes effective on February 22, 1985. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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