AD 64-03-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Industrie Aeronautiche e Meccaniche | P.166 | Airworthiness Directives; PIAGGIO Model P.166 Aircraft |
Unsafe Condition
Fatigue cracks have developed in service on nose landing gear steering control unit part numbers 4105.26 and 4105.31.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace old flanges with new flanges (P/N 4105.26A for Modification 2-22027 and P/N 4105.31A for Modification 22027) following Piaggio Service Bulletin No. 166-35 dated July 8, 1963.
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Compliance Time
within the next 50 hours' time in service after the effective date of this AD
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Affected Aircraft
All Model P.166 Aircraft equipped with Magnaghi Modification 22027 or Modification 2-22027 Shock Absorbers.
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Federal Register Abstract
Nose Landing Gear Steering Control Unit
Applicability Source Text
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AD Final Rules - DRS_64-03-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 64-03-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; PIAGGIO Model P.166 Aircraft Subject: Nose Landing Gear Steering Control Unit Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 02/20/1964 Make: Industrie Aeronautiche e Meccaniche Model: P.166 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 64-03-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 64-03-04 SUBJECT HEADING: Airworthiness Directives; PIAGGIO Model P.166 Aircraft ACTION: SUMMARY: DATES: Effective February 20, 1964. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 64-03-04 PIAGGIO: Amdt. 675 Part 507 Federal Register January 21, 1964. Applies to All Model P.166 Aircraft Equipped With Magnaghi Modification 22027 or Modification 2-22027 Shock Absorbers. Compliance required within the next 50 hours' time in service after the effective date of this AD. Fatigue cracks have developed inservice on nose landing gear steering control unit P/N's 4105.26 and 4105.31. To correct this condition, replace flanges in nose undercarriage unit as follows: (a) On aircraft equipped with Modification 2-22027 shock absorber, replace old flange P/N 4105.26 with new flange P/N 4105.26A. (b) On aircraft equipped with Modification 22027 shock absorber, replace old flange P/N 4105.31 with new flange P/N 4105.31A. (c) Accomplish replacement as provided for in Piaggio Service Bulletin No. 166-35 dated July 8, 1963. (Piaggio Service Bulletin No. 166-35 dated July 8, 1963, covers the same subject.) This directive effective February 20, 1964. FOOTER:
Document Text
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AD Final Rules - DRS_64-03-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 64-03-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; PIAGGIO Model P.166 Aircraft Subject: Nose Landing Gear Steering Control Unit Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 02/20/1964 Make: Industrie Aeronautiche e Meccaniche Model: P.166 Product Type: Aircraft Product Subtype: Small 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: 64-03-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 64-03-04 SUBJECT HEADING: Airworthiness Directives; PIAGGIO Model P.166 Aircraft ACTION: SUMMARY: DATES: Effective February 20, 1964. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 64-03-04 PIAGGIO: Amdt. 675 Part 507 Federal Register January 21, 1964. Applies to All Model P.166 Aircraft Equipped With Magnaghi Modification 22027 or Modification 2-22027 Shock Absorbers. Compliance required within the next 50 hours' time in service after the effective date of this AD. Fatigue cracks have developed inservice on nose landing gear steering control unit P/N's 4105.26 and 4105.31. To correct this condition, replace flanges in nose undercarriage unit as follows: (a) On aircraft equipped with Modification 2-22027 shock absorber, replace old flange P/N 4105.26 with new flange P/N 4105.26A. (b) On aircraft equipped with Modification 22027 shock absorber, replace old flange P/N 4105.31 with new flange P/N 4105.31A. (c) Accomplish replacement as provided for in Piaggio Service Bulletin No. 166-35 dated July 8, 1963. (Piaggio Service Bulletin No. 166-35 dated July 8, 1963, covers the same subject.) This directive effective February 20, 1964. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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