AD 64-28-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-30 | Airworthiness Directives; Piper Model PA-30 Aircraft |
Unsafe Condition
Progressively stronger stabilator vibration due to the original stabilator torque tube design.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a new design stabilator torque tube (Piper P/N 22655-07) in accordance with Piper Service Bulletin No. 222A, and remove the 'Do not exceed 205 m.p.h. IAS' placard. Destroy the original torque tube to prevent reinstallation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 30 hours' time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Piper Model PA-30 Aircraft, Serial Numbers 30-1 through 30-565
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Heavy Walled Torque Tube
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_64-28-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 64-28-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-30 Aircraft Subject: Heavy Walled Torque Tube Status: Current Citation: Federal Register: December 24, 1964 Citation Publish Date: 12/24/1964 Effective Date: 12/24/1964 Make: Piper Aircraft Inc. Model: PA-30 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 64-28-03 CITATION: [Federal Register: December 24, 1964] PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-15 AD NUMBER: 64-28-03 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-30 Aircraft ACTION: SUMMARY: DATES: Effective December 24, 1964. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 64-28-03 PIPER: Amdt. 39-15 Part 39 Federal Register December 24, 1964. Applies to Model PA-30 Aircraft, Serial Numbers 30-1 through 30-565. Compliance required within 30 hours' time in service after the effective date of this AD, unless already accomplished: As a result of instances of progressively stronger stabilator vibration, accomplish the following: Install a new design stabilator torque tube, Piper P/N 22655-07, in accordance with the instructions attached to Piper Service Bulletin No. 222A, dated August 10, 1964, or an equivalent modification approved by the Engineering and Manufacturing Branch, FAA Eastern Region and then remove the "Do not exceed 205 m.p.h. IAS" placard. NOTE: The original stabilator torque tube removed during compliance with this AD should be destroyed to avoid inadvertent reinstallation. (Piper Service Letter No. 428, dated June 30, 1964, and Piper Service Bulletin No. 222A dated August 10, 1964, pertains to this subject.) This supersedes AD 64-16-07. This directive effective December 24, 1964. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_64-28-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 64-28-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-30 Aircraft Subject: Heavy Walled Torque Tube Status: Current Citation: Federal Register: December 24, 1964 Citation Publish Date: 12/24/1964 Effective Date: 12/24/1964 Make: Piper Aircraft Inc. Model: PA-30 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 64-28-03 CITATION: [Federal Register: December 24, 1964] PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-15 AD NUMBER: 64-28-03 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-30 Aircraft ACTION: SUMMARY: DATES: Effective December 24, 1964. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 64-28-03 PIPER: Amdt. 39-15 Part 39 Federal Register December 24, 1964. Applies to Model PA-30 Aircraft, Serial Numbers 30-1 through 30-565. Compliance required within 30 hours' time in service after the effective date of this AD, unless already accomplished: As a result of instances of progressively stronger stabilator vibration, accomplish the following: Install a new design stabilator torque tube, Piper P/N 22655-07, in accordance with the instructions attached to Piper Service Bulletin No. 222A, dated August 10, 1964, or an equivalent modification approved by the Engineering and Manufacturing Branch, FAA Eastern Region and then remove the "Do not exceed 205 m.p.h. IAS" placard. NOTE: The original stabilator torque tube removed during compliance with this AD should be destroyed to avoid inadvertent reinstallation. (Piper Service Letter No. 428, dated June 30, 1964, and Piper Service Bulletin No. 222A dated August 10, 1964, pertains to this subject.) This supersedes AD 64-16-07. This directive effective December 24, 1964. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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