AD 81-25-01
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Maule Aerospace Technology, Inc. | Woodward Governor Company | M-5-235C | Airworthiness Directives; WOODWARD GOVERNOR COMPANY Model F210681 Serial Numbers 1446751 through 1446783, 1446785 through 1446806, 1446808, 1446809, 1446811, 1446812, 1446814 through 1446817, 1567547 through 1567562, 1567564 through 1567594, and 1567596 through 1567612 |
| aircraft | Maule Aerospace Technology, Inc. | Woodward Governor Company | Flyweights | Airworthiness Directives; WOODWARD GOVERNOR COMPANY Model F210681 Serial Numbers 1446751 through 1446783, 1446785 through 1446806, 1446808, 1446809, 1446811, 1446812, 1446814 through 1446817, 1567547 through 1567562, 1567564 through 1567594, and 1567596 through 1567612 |
| appliance | Maule Aerospace Technology, Inc. | Woodward Governor Company | M-5-235C | Airworthiness Directives; WOODWARD GOVERNOR COMPANY Model F210681 Serial Numbers 1446751 through 1446783, 1446785 through 1446806, 1446808, 1446809, 1446811, 1446812, 1446814 through 1446817, 1567547 through 1567562, 1567564 through 1567594, and 1567596 through 1567612 |
| appliance | Maule Aerospace Technology, Inc. | Woodward Governor Company | Flyweights | Airworthiness Directives; WOODWARD GOVERNOR COMPANY Model F210681 Serial Numbers 1446751 through 1446783, 1446785 through 1446806, 1446808, 1446809, 1446811, 1446812, 1446814 through 1446817, 1567547 through 1567562, 1567564 through 1567594, and 1567596 through 1567612 |
Unsafe Condition
Failure of the flyweights
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove Woodward Governor Model F210681 with the listed serial numbers and replace with a Woodward Governor Model F210681 S/N not listed in accordance with Woodward Service Bulletin 33576 dated October 1981.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 50 hours time in service from the effective date of this AD
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Affected Aircraft
WOODWARD GOVERNOR COMPANY Model F210681 Serial Numbers 1446751 through 1446783, 1446785 through 1446806, 1446808, 1446809, 1446811, 1446812, 1446814 through 1446817, 1567547 through 1567562, 1567564 through 1567594, and 1567596 through 1567612 installed on Maule M5 235C airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Flyweights
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_81-25-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-25-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; WOODWARD GOVERNOR COMPANY Model F210681 Serial Numbers 1446751 through 14...Show more Subject: Flyweights Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/07/1981 Make: Maule Aerospace Technology, Inc. | Woodward Governor Company Model: M-5-235C | Flyweights Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 81-25-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4269 AD NUMBER: 81-25-01 SUBJECT HEADING: Airworthiness Directives; WOODWARD GOVERNOR COMPANY Model F210681 Serial Numbers 1446751 through 1446783, 1446785 through 1446806, 1446808, 1446809, 1446811, 1446812, 1446814 through 1446817, 1567547 through 1567562, 1567564 through 1567594, and 1567596 through 1567612 ACTION: SUMMARY: DATES: Effective December 7, 1981. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-25-01 WOODWARD GOVERNOR COMPANY: Amendment 39-4269. Applies to Model F210681 Serial Numbers 1446751 through 1446783, 1446785 through 1446806, 1446808, 1446809, 1446811, 1446812, 1446814 through 1446817, 1567547 through 1567562, 1567564 through 1567594, and 1567596 through 1567612 installed on Maule M5 235C airplanes. Compliance is required as indicated, unless already accomplished. To prevent the possible failure of the flyweights, accomplish the following: Within the next 50 hours time in service from the effective date of this AD, remove Woodward Governor Model F210681 with the above listed serial numbers and replace with a Woodward Governor Model F210681 S/N not listed above in accordance with Woodward Service Bulletin 33576 dated October 1981. This amendment becomes effective December 7, 1981. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_81-25-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-25-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; WOODWARD GOVERNOR COMPANY Model F210681 Serial Numbers 1446751 through 14...Show more Subject: Flyweights Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/07/1981 Make: Maule Aerospace Technology, Inc. | Woodward Governor Company Model: M-5-235C | Flyweights Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 81-25-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4269 AD NUMBER: 81-25-01 SUBJECT HEADING: Airworthiness Directives; WOODWARD GOVERNOR COMPANY Model F210681 Serial Numbers 1446751 through 1446783, 1446785 through 1446806, 1446808, 1446809, 1446811, 1446812, 1446814 through 1446817, 1567547 through 1567562, 1567564 through 1567594, and 1567596 through 1567612 ACTION: SUMMARY: DATES: Effective December 7, 1981. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-25-01 WOODWARD GOVERNOR COMPANY: Amendment 39-4269. Applies to Model F210681 Serial Numbers 1446751 through 1446783, 1446785 through 1446806, 1446808, 1446809, 1446811, 1446812, 1446814 through 1446817, 1567547 through 1567562, 1567564 through 1567594, and 1567596 through 1567612 installed on Maule M5 235C airplanes. Compliance is required as indicated, unless already accomplished. To prevent the possible failure of the flyweights, accomplish the following: Within the next 50 hours time in service from the effective date of this AD, remove Woodward Governor Model F210681 with the above listed serial numbers and replace with a Woodward Governor Model F210681 S/N not listed above in accordance with Woodward Service Bulletin 33576 dated October 1981. This amendment becomes effective December 7, 1981. FOOTER:
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Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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