AD 70-01-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Schweizer Aircraft Corporation | 269A | Airworthiness Directives; Hughes Model 269A, 269A-1, 269A-2 and 269B Helicopters |
| aircraft | Schweizer Aircraft Corporation | 269A-1 | Airworthiness Directives; Hughes Model 269A, 269A-1, 269A-2 and 269B Helicopters |
| aircraft | Schweizer Aircraft Corporation | 269B | Airworthiness Directives; Hughes Model 269A, 269A-1, 269A-2 and 269B Helicopters |
Unsafe Condition
Failure of the P/N 269A7506 lateral pitch mixer idler bellcrank assembly due to fatigue cracking could result in loss of lateral pitch control.
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Required Actions
Remove and replace P/N 269A7506 bellcrank assembly with serviceable P/N 269A7506 or P/N 269A7508 units before specified time-in-service limits. Mark removed assemblies to prevent reuse.
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Compliance Time
Prior to accumulation of 900 hours time in service (for assemblies with less than 875 hours on AD effective date) or 25 additional hours time in service (for assemblies with 875+ hours on AD effective date).
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Affected Aircraft
Schweizer Aircraft Corporation Models 269A, 269A-1, 269A-2, and 269B helicopters with P/N 269A7506 lateral pitch mixer idler bellcrank assembly installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Lateral pitch idler bell crank
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_70-01-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-01-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Hughes Model 269A, 269A-1, 269A-2 and 269B Helicopters Subject: Lateral pitch idler bell crank Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/17/1970 Make: Schweizer Aircraft Corporation Model: 269A | 269A-1 | 269B Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 70-01-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-921 AD NUMBER: 70-01-06 SUBJECT HEADING: Airworthiness Directives; Hughes Model 269A, 269A-1, 269A-2 and 269B Helicopters ACTION: SUMMARY: DATES: Effective January 17, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-01-06 HUGHES: Amdt. 39-921. Applies to Model 269A, 269A-1, 269A-2 and 269B helicopters certificated in all categories with P/N 269A7506 lateral pitch mixer idler bellcrank assembly installed. To insure continued airworthiness of Hughes Model 269A, 269A-1, 269A-2 and 269B helicopters, with P/N 269A7506 lateral pitch mixer idler bellcrank assembly installed, accomplish the following: (a) For helicopters equipped with P/N 269A7506 bellcrank assembly having less than 875 hours time in service on the effective date of this AD, remove from service P/N 269A7506 lateral pitch mixer idler bellcrank assembly prior to the accumulation of 900 hours time in service, and mark it permanently and conspicuously to prevent its inadvertent return to service. Replace it with a serviceable P/N 269A7506 or P/N 269A7508 lateral pitch mixer idler bellcrank assembly. (b) For helicopters equipped with P/N 269A7506 bellcrank assembly having 875 or more hours' time in service on the effective date of this AD, remove from service P/N 269A7506 lateral pitch mixer idler bellcrank assembly prior to the accumulation of 25 additional hours time in service, and mark it permanently and conspicuously to prevent its inadvertent return to service. Replace it with a serviceable P/N 269A7506 or P/N 269A7508 lateral pitch mixer idler bellcrank assembly. This amendment becomes effective January 17, 1970. FOOTER:
Document Text
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AD Final Rules - DRS_70-01-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-01-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Hughes Model 269A, 269A-1, 269A-2 and 269B Helicopters Subject: Lateral pitch idler bell crank Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/17/1970 Make: Schweizer Aircraft Corporation Model: 269A | 269A-1 | 269B Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 70-01-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-921 AD NUMBER: 70-01-06 SUBJECT HEADING: Airworthiness Directives; Hughes Model 269A, 269A-1, 269A-2 and 269B Helicopters ACTION: SUMMARY: DATES: Effective January 17, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-01-06 HUGHES: Amdt. 39-921. Applies to Model 269A, 269A-1, 269A-2 and 269B helicopters certificated in all categories with P/N 269A7506 lateral pitch mixer idler bellcrank assembly installed. To insure continued airworthiness of Hughes Model 269A, 269A-1, 269A-2 and 269B helicopters, with P/N 269A7506 lateral pitch mixer idler bellcrank assembly installed, accomplish the following: (a) For helicopters equipped with P/N 269A7506 bellcrank assembly having less than 875 hours time in service on the effective date of this AD, remove from service P/N 269A7506 lateral pitch mixer idler bellcrank assembly prior to the accumulation of 900 hours time in service, and mark it permanently and conspicuously to prevent its inadvertent return to service. Replace it with a serviceable P/N 269A7506 or P/N 269A7508 lateral pitch mixer idler bellcrank assembly. (b) For helicopters equipped with P/N 269A7506 bellcrank assembly having 875 or more hours' time in service on the effective date of this AD, remove from service P/N 269A7506 lateral pitch mixer idler bellcrank assembly prior to the accumulation of 25 additional hours time in service, and mark it permanently and conspicuously to prevent its inadvertent return to service. Replace it with a serviceable P/N 269A7506 or P/N 269A7508 lateral pitch mixer idler bellcrank assembly. This amendment becomes effective January 17, 1970. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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