AD 80-11-07
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Robinson Helicopter Company | R22 | Airworthiness Directives; ROBINSON HELICOPTER COMPANY Model R22 Series Helicopters |
Unsafe Condition
Main rotor blade structural failure
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove from service all main rotor blades with serial numbers 1 through 91 and replace with like serviceable parts. Mark the blades with 'UNAIRWORTHY' on the upper surface mid-span using 2-inch high lettering and stamp the data plate with 'UNAIRWORTHY'.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Robinson Helicopter Company Model R22 series helicopters with main rotor blades serial numbers 1 through 91
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Main Rotor Blades
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_80-11-07.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 80-11-07 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; ROBINSON HELICOPTER COMPANY Model R22 Series Helicopters Subject: Main Rotor Blades Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/14/1980 Make: Robinson Helicopter Company Model: R22 Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 80-11-07 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3834 AD NUMBER: 80-11-07 SUBJECT HEADING: Airworthiness Directives; ROBINSON HELICOPTER COMPANY Model R22 Series Helicopters ACTION: SUMMARY: DATES: Effective July 14, 1980. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 80-11-07 ROBINSON HELICOPTER COMPANY: Amendment 39-3834. Applies to Model R22 series helicopters certificated in all categories. Compliance is required as indicated. To prevent main rotor blade structural failure, accomplish the following: (a) Prior to further flight remove from service all main rotor blades Serial numbers 1 through 91 and replace with like serviceable part. (b) Mark all blades Serial numbers 1 through 91 "UNAIRWORTHY" on the blade upper surface at the approximate mid-span with lettering at least 2 inches high and, using a metal stamp, mark "UNAIRWORTHY" on data plate. This supersedes Amendment 39-3751, (45 FR 26032), AD 80-08-08. This amendment becomes effective July 14, 1980, and was effective earlier for all recipients of the telegram T80WE25 dated May 20, 1980. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_80-11-07.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 80-11-07 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; ROBINSON HELICOPTER COMPANY Model R22 Series Helicopters Subject: Main Rotor Blades Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/14/1980 Make: Robinson Helicopter Company Model: R22 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: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 80-11-07 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3834 AD NUMBER: 80-11-07 SUBJECT HEADING: Airworthiness Directives; ROBINSON HELICOPTER COMPANY Model R22 Series Helicopters ACTION: SUMMARY: DATES: Effective July 14, 1980. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 80-11-07 ROBINSON HELICOPTER COMPANY: Amendment 39-3834. Applies to Model R22 series helicopters certificated in all categories. Compliance is required as indicated. To prevent main rotor blade structural failure, accomplish the following: (a) Prior to further flight remove from service all main rotor blades Serial numbers 1 through 91 and replace with like serviceable part. (b) Mark all blades Serial numbers 1 through 91 "UNAIRWORTHY" on the blade upper surface at the approximate mid-span with lettering at least 2 inches high and, using a metal stamp, mark "UNAIRWORTHY" on data plate. This supersedes Amendment 39-3751, (45 FR 26032), AD 80-08-08. This amendment becomes effective July 14, 1980, and was effective earlier for all recipients of the telegram T80WE25 dated May 20, 1980. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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