AD 79-26-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bendix Energy Controls Division | Fuel Injection Units | Airworthiness Directives; BENDIX ENERGY CONTROLS DIVISION: Applies To All Model No. RSA-5AD1, P/N's 2524145-8 and 2524145-9 Fuel Injector Units |
| appliance | Bendix Energy Controls Division | Fuel Injection Units | Airworthiness Directives; BENDIX ENERGY CONTROLS DIVISION: Applies To All Model No. RSA-5AD1, P/N's 2524145-8 and 2524145-9 Fuel Injector Units |
Unsafe Condition
The regulator stem and lock nut on the Bendix RSA-5AD1 fuel injector units (P/N 2524145-8 and 2524145-9) may have an incorrect number of threads extending beyond the lock nut, leading to potential fuel flow discrepancies or failure of the fuel injector system.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the regulator stem and lock nut, and accomplish instructions in Bendix Service Bulletin RS-68 or FAA-approved equivalent based on the number of threads extending beyond the lock nut.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to the next twenty-five (25) hours of aircraft time in service, or within the next thirty (30) calendar days from the date of this AD, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bendix Energy Controls Division Model No. RSA-5AD1 fuel injector units with P/N's 2524145-8 and 2524145-9.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Fuel Injector Systems
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_79-26-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-26-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BENDIX ENERGY CONTROLS DIVISION: Applies To All Model No. RSA-5AD1, P/N'...Show more Subject: Fuel Injector Systems Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/26/1979 Make: Bendix Energy Controls Division Model: Fuel Injection Units Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 79-26-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3636 AD NUMBER: 79-26-03 SUBJECT HEADING: Airworthiness Directives; BENDIX ENERGY CONTROLS DIVISION: Applies To All Model No. RSA-5AD1, P/N's 2524145-8 and 2524145-9 Fuel Injector Units ACTION: SUMMARY: DATES: Effective December 26,1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-26-03 BENDIX ENERGY CONTROLS DIVISION: Amendment 39-3636. Applies to all Model No. RSA-5AD1, P/N's 2524145-8 and 2524145-9 fuel injector units. Compliance required as indicated unless previously accomplished. Compliance/rework is indicated by the letter "N" stamped on the head of the brass plug. Prior to the next twenty-five (25) hours of aircraft time in service, or within the next thirty (30) calendar days from the date of this AD, whichever occurs first, inspect the regulator stem and lock nut on the Bendix fuel injector units, Model Nos. RSA-5AD1, P/N's 2524145-8 and 2524145-9. Based upon the number of threads extending beyond the lock nut, accomplish the instructions as outlined in Bendix Service Bulletin RS-68 dated August 20, 1979 or FAA approved equivalent. (Amendment 2 dated September 6, 1979 picks up these two RSA-5AD1 units which were not included in the basic bulletin.) This amendment becomes effective December 26, 1979. FOOTER:
Document Text
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AD Final Rules - DRS_79-26-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-26-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BENDIX ENERGY CONTROLS DIVISION: Applies To All Model No. RSA-5AD1, P/N'...Show more Subject: Fuel Injector Systems Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/26/1979 Make: Bendix Energy Controls Division Model: Fuel Injection Units Product Type: Appliance 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: 79-26-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3636 AD NUMBER: 79-26-03 SUBJECT HEADING: Airworthiness Directives; BENDIX ENERGY CONTROLS DIVISION: Applies To All Model No. RSA-5AD1, P/N's 2524145-8 and 2524145-9 Fuel Injector Units ACTION: SUMMARY: DATES: Effective December 26,1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-26-03 BENDIX ENERGY CONTROLS DIVISION: Amendment 39-3636. Applies to all Model No. RSA-5AD1, P/N's 2524145-8 and 2524145-9 fuel injector units. Compliance required as indicated unless previously accomplished. Compliance/rework is indicated by the letter "N" stamped on the head of the brass plug. Prior to the next twenty-five (25) hours of aircraft time in service, or within the next thirty (30) calendar days from the date of this AD, whichever occurs first, inspect the regulator stem and lock nut on the Bendix fuel injector units, Model Nos. RSA-5AD1, P/N's 2524145-8 and 2524145-9. Based upon the number of threads extending beyond the lock nut, accomplish the instructions as outlined in Bendix Service Bulletin RS-68 dated August 20, 1979 or FAA approved equivalent. (Amendment 2 dated September 6, 1979 picks up these two RSA-5AD1 units which were not included in the basic bulletin.) This amendment becomes effective December 26, 1979. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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