AD 56-27-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-23 | Airworthiness Directives; Piper Model PA-23 Aircraft |
Unsafe Condition
Fatigue cracking in the aileron balance weight bracket at the point where the bracket tubes are welded to form a 90 degree angle.
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Required Actions
Remove both right and left aileron balance weight brackets and reinforce them with gussets, Piper P/N 17126-07, following Piper Service Bulletin No. 149 dated December 10, 1956.
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Compliance Time
February 1, 1957
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Affected Aircraft
Piper Model PA-23, Serial Numbers 23-1 Through 23-800 Except 23-732, 23-736, 23-739, 23-740, 23-741, 23-769, 23-777, 23-784, 23-787, 23-794, 23-797 and 23-799.
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Federal Register Abstract
Aileron Balance Weight Bracket
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_56-27-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 56-27-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-23 Aircraft Subject: Aileron Balance Weight Bracket Status: Current Citation: This information is not available. Citation Publish Date: 04/11/1957 Effective Date: Make: Piper Aircraft Inc. Model: PA-23 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part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: Unable to find issue date AIRWORTHINESS DIRECTIVES FINAL RULES: 56-27-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 56-27-03 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-23 Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 56-27-03 PIPER: Applies to Model PA-23, Serial Numbers 23-1 Through 23-800 Except 23-732, 23-736, 23-739, 23-740, 23-741, 23-769, 23-777, 23-784, 23-787, 23-794, 23-797 and 23-799. Compliance required by February 1, 1957. In order to prevent fatigue cracking in the aileron balance weight bracket at a point where the bracket tubes are welded to form a 90 degree angle, it will be necessary to remove both the right and left aileron balance weight brackets and reinforce them with gussets, Piper P/N 17126- 07 in accordance with the instructions and sketch contained in Piper Service Bulletin No. 149 dated December 10, 1956. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_56-27-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 56-27-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-23 Aircraft Subject: Aileron Balance Weight Bracket Status: Current Citation: This information is not available. Citation Publish Date: 04/11/1957 Effective Date: Make: Piper Aircraft Inc. Model: PA-23 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: Unable to find issue date AIRWORTHINESS DIRECTIVES FINAL RULES: 56-27-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 56-27-03 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-23 Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 56-27-03 PIPER: Applies to Model PA-23, Serial Numbers 23-1 Through 23-800 Except 23-732, 23-736, 23-739, 23-740, 23-741, 23-769, 23-777, 23-784, 23-787, 23-794, 23-797 and 23-799. Compliance required by February 1, 1957. In order to prevent fatigue cracking in the aileron balance weight bracket at a point where the bracket tubes are welded to form a 90 degree angle, it will be necessary to remove both the right and left aileron balance weight brackets and reinforce them with gussets, Piper P/N 17126- 07 in accordance with the instructions and sketch contained in Piper Service Bulletin No. 149 dated December 10, 1956. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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