AD 73-13-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Twin Commander Aircraft LLC | 690 | Airworthiness Directives; Rockwell International Model 690 Airplanes |
Unsafe Condition
Failure of oil supply lines in the event of an engine fire
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove existing oil supply hose assembly and install tube assembly (P/N 610488-111), check valve (P/N 816T-6TT (.014)-12), hose assembly (P/N 610488-113), and attaching parts as listed in Rockwell International Service Bulletin 123, dated April 5, 1973, or equivalent parts and methods approved by the Chief, Engineering and Manufacturing Branch, Southwest Region, Federal Aviation Administration, Fort Worth, Texas.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 50 hours time in service after the effective date of this AD
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Affected Aircraft
Rockwell International Model 690 airplanes, Serial Numbers 11001 through 11063
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Federal Register Abstract
Oil Supply Line Failure
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_73-13-09.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-13-09 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Rockwell International Model 690 Airplanes Subject: Oil Supply Line Failure Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/25/1973 Make: Twin Commander Aircraft LLC Model: 690 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 73-13-09 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1667 AD NUMBER: 73-13-09 SUBJECT HEADING: Airworthiness Directives; Rockwell International Model 690 Airplanes ACTION: SUMMARY: DATES: Effective June 25, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-13-09 ROCKWELL INTERNATIONAL: Amdt. 39-1667. Applies to Model 690 airplanes, Serial Numbers 11001 through 11063. Compliance required within the next 50 hours time in service after the effective date of this AD, unless already accomplished. To prevent failure of oil supply lines in the event of an engine fire, accomplish the following: Remove existing oil supply hose assembly and install tube assembly (P/N 610488-111), check valve (P/N 816T-6TT (.014)-12), hose assembly (P/N 610488-113), and attaching parts as listed in Rockwell International Service Bulletin 123, dated April 5, 1973, or equivalent parts and methods approved by the Chief, Engineering and Manufacturing Branch, Southwest Region, Federal Aviation Administration, Fort Worth, Texas. This amendment becomes effective June 25, 1973. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_73-13-09.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-13-09 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Rockwell International Model 690 Airplanes Subject: Oil Supply Line Failure Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/25/1973 Make: Twin Commander Aircraft LLC Model: 690 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 73-13-09 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1667 AD NUMBER: 73-13-09 SUBJECT HEADING: Airworthiness Directives; Rockwell International Model 690 Airplanes ACTION: SUMMARY: DATES: Effective June 25, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-13-09 ROCKWELL INTERNATIONAL: Amdt. 39-1667. Applies to Model 690 airplanes, Serial Numbers 11001 through 11063. Compliance required within the next 50 hours time in service after the effective date of this AD, unless already accomplished. To prevent failure of oil supply lines in the event of an engine fire, accomplish the following: Remove existing oil supply hose assembly and install tube assembly (P/N 610488-111), check valve (P/N 816T-6TT (.014)-12), hose assembly (P/N 610488-113), and attaching parts as listed in Rockwell International Service Bulletin 123, dated April 5, 1973, or equivalent parts and methods approved by the Chief, Engineering and Manufacturing Branch, Southwest Region, Federal Aviation Administration, Fort Worth, Texas. This amendment becomes effective June 25, 1973. 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.
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