AD 69-15-06
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Learjet Inc. | 23 | Airworthiness Directives; LEARJET Model 23, 24 and 25 Airplanes. |
| aircraft | Learjet Inc. | 24 | Airworthiness Directives; LEARJET Model 23, 24 and 25 Airplanes. |
| aircraft | Learjet Inc. | 25 | Airworthiness Directives; LEARJET Model 23, 24 and 25 Airplanes. |
Unsafe Condition
Engine throttle cable jamming due to one-piece Controlex ball bearing design.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove one-piece Controlex throttle cables and install two-piece quick-disconnect type ball bearing throttle cables per Lear Service Kit No. 23/24/25-317 or later FAA-approved revision.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 hours' time in service after the effective date of this Airworthiness Directive
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Learjet Model 23 (Serial Numbers 23-012, 23-019, 23-030-099), Model 24 (Serial Numbers 24-100-139 and 24-140-180), and Model 25 (Serial Numbers 25-003-024) equipped with Controlex ball bearing throttle cables.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Engine Throttle Cable
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_69-15-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 69-15-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; LEARJET Model 23, 24 and 25 Airplanes. Subject: Engine Throttle Cable Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/15/1969 Make: Learjet Inc. Model: 23 | 24 | 25 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 69-15-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-802 AD NUMBER: 69-15-06 SUBJECT HEADING: Airworthiness Directives; LEARJET Model 23, 24 and 25 Airplanes. ACTION: SUMMARY: DATES: Effective August 15, 1969. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 69-15-06 LEARJET: Amendment 39-802. Applies to Model 23 (Serial Numbers 23-012, 23-019 and 23-030 thru 23-099) equipped with Controlex ball bearing throttle cables; Model 24 (Serial Numbers 24-100 thru 24-139) equipped with Controlex ball bearing throttle cables; and (Serial Numbers 24-140 thru 24-180); and Model 25 (Serial Numbers 25-003 thru 25-024) Airplanes. Compliance: Within 50 hours' time in service after the effective date of this Airworthiness Directive, unless already accomplished: To prevent the possibility of the engine power control cable jamming, accomplish the following: Remove the one-piece Controlex throttle cables and install two-piece quick-disconnect type ball bearing throttle cables in accordance with Lear Service Kit No. 23/24/25-317, dated May 19, 1969, or later Federal Aviation Administration approved revision, or an equivalent approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Central Region. This amendment becomes effective August 15, 1969. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_69-15-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 69-15-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; LEARJET Model 23, 24 and 25 Airplanes. Subject: Engine Throttle Cable Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/15/1969 Make: Learjet Inc. Model: 23 | 24 | 25 Product Type: Aircraft Product Subtype: Large 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: 69-15-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-802 AD NUMBER: 69-15-06 SUBJECT HEADING: Airworthiness Directives; LEARJET Model 23, 24 and 25 Airplanes. ACTION: SUMMARY: DATES: Effective August 15, 1969. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 69-15-06 LEARJET: Amendment 39-802. Applies to Model 23 (Serial Numbers 23-012, 23-019 and 23-030 thru 23-099) equipped with Controlex ball bearing throttle cables; Model 24 (Serial Numbers 24-100 thru 24-139) equipped with Controlex ball bearing throttle cables; and (Serial Numbers 24-140 thru 24-180); and Model 25 (Serial Numbers 25-003 thru 25-024) Airplanes. Compliance: Within 50 hours' time in service after the effective date of this Airworthiness Directive, unless already accomplished: To prevent the possibility of the engine power control cable jamming, accomplish the following: Remove the one-piece Controlex throttle cables and install two-piece quick-disconnect type ball bearing throttle cables in accordance with Lear Service Kit No. 23/24/25-317, dated May 19, 1969, or later Federal Aviation Administration approved revision, or an equivalent approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Central Region. This amendment becomes effective August 15, 1969. 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.