AD 83-07-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aermacchi S.p.A. | S.205 - 20/F | Airworthiness Directives; SIAI-MARCHETTI Models S205-20F and S205- 20R Airplanes |
| aircraft | Aermacchi S.p.A. | S.205 - 20/R | Airworthiness Directives; SIAI-MARCHETTI Models S205-20F and S205- 20R Airplanes |
Unsafe Condition
Loss or failure of the attachment connecting the butterfly valve to the shaft of the engine induction valve assembly.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the attachment of the butterfly valve (P/N 205-5-260-09) to the shaft (P/N 205-5-260-07) of the engine induction valve assembly (P/N 205-5-260-101 or P/N 205-5-260-01) per SIAI-Marchetti Service Bulletin No. 205B55. Flights to a location where this AD can be accomplished are allowed under FAR 21.197. Equivalent compliance methods require FAA approval.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 100 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
SIAI-MARCHETTI Models S205-20F and S205-20R airplanes with specified serial numbers including 222, 4-101, 4-102, 4-106, 4-172, 4-206, 4-241, 5-303, 003, 103, 106, 215, 218, 220, 221, 227, 237, 238, 345-347, 349, 351, 355, 357, 359-363, 366-368, 375-377, 4-107-4-113, 4-115, 4-116, 4-133-4-139, 4-141, 4-159-4-163, 4-173, 4-174, 4-197-4-202, 4-205, 4-208-4-215, 4-236-4-240, 4-242-4-244, 4-248, 4-249, 4-251-4-253, 4-255, 4-269-4-271, 4-273, 4-274, 4-275, 4-276, 4-282, 5-302, and 06-001-06-040.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Butterfly Valve Attachment
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_83-07-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 83-07-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; SIAI-MARCHETTI Models S205-20F and S205- 20R Airplanes Subject: Butterfly Valve Attachment Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/14/1983 Make: Aermacchi S.p.A. Model: S.205 - 20/F | S.205 - 20/R 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: 83-07-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4613 AD NUMBER: 83-07-10 SUBJECT HEADING: Airworthiness Directives; SIAI-MARCHETTI Models S205-20F and S205- 20R Airplanes ACTION: SUMMARY: DATES: Effective April 14, 1983. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 83-07-10 SIAI-MARCHETTI: Amendment 39-4613. Applies to Models S205-20F and S205- 20R (Serial Numbers 222, 4-101, 4-102, 4-106, 4-172, 4-206, 4-241, 5-303, 003, 103, 106, 215, 218, 220, 221, 227, 237, 238, 345 thru 347, 349, 351, 355, 357, 359 thru 363, 366 thru 368, 375 thru 377, 4-107 thru 4-113, 4-115, 4-116, 4-133 thru 4-139, 4-141, 4-159 thru 4-163, 4-173, 4- 174, 4-197 thru 4-202, 4-205, 4-208 thru 4-215, 4-236 thru 4-240, 4-242 thru 4-244, 4-248, 4- 249, 4-251 thru 4-253, 4-255, 4-269 thru 4-271, 4-273, 4-274, 4-275, 4-276, 4-282, 5-302, and 06-001 thru 06-040) airplanes certificated in any category. Compliance: Required as indicated unless already accomplished. To prevent loss or failure of the attachment that connects the butterfly valve to the shaft of the engine induction valve assembly, within the next 100 hours time-in-service after the effective date of this AD, accomplish the following: a) Modify the attachment of the butterfly valve (Part Number (P/N) 205-5-260-09) to the shaft (P/N 205-5-260-07) of the engine induction valve assembly (P/N 205-5-260-101 or P/N 205-5-260-01) in accordance with the "Instruction" section of SIAI-Marchetti Service Bulletin No. 205B55, dated December 11, 1981. b) Airplane may be flown in accordance with FAR 21.197 to a location where this Airworthiness Directive (AD) can be accomplished. c) An equivalent method of compliance with this AD if used must be approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, 1000 Brussels, Belgium. This amendment becomes effective on April 14, 1983. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_83-07-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 83-07-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; SIAI-MARCHETTI Models S205-20F and S205- 20R Airplanes Subject: Butterfly Valve Attachment Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/14/1983 Make: Aermacchi S.p.A. Model: S.205 - 20/F | S.205 - 20/R 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: 83-07-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4613 AD NUMBER: 83-07-10 SUBJECT HEADING: Airworthiness Directives; SIAI-MARCHETTI Models S205-20F and S205- 20R Airplanes ACTION: SUMMARY: DATES: Effective April 14, 1983. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 83-07-10 SIAI-MARCHETTI: Amendment 39-4613. Applies to Models S205-20F and S205- 20R (Serial Numbers 222, 4-101, 4-102, 4-106, 4-172, 4-206, 4-241, 5-303, 003, 103, 106, 215, 218, 220, 221, 227, 237, 238, 345 thru 347, 349, 351, 355, 357, 359 thru 363, 366 thru 368, 375 thru 377, 4-107 thru 4-113, 4-115, 4-116, 4-133 thru 4-139, 4-141, 4-159 thru 4-163, 4-173, 4- 174, 4-197 thru 4-202, 4-205, 4-208 thru 4-215, 4-236 thru 4-240, 4-242 thru 4-244, 4-248, 4- 249, 4-251 thru 4-253, 4-255, 4-269 thru 4-271, 4-273, 4-274, 4-275, 4-276, 4-282, 5-302, and 06-001 thru 06-040) airplanes certificated in any category. Compliance: Required as indicated unless already accomplished. To prevent loss or failure of the attachment that connects the butterfly valve to the shaft of the engine induction valve assembly, within the next 100 hours time-in-service after the effective date of this AD, accomplish the following: a) Modify the attachment of the butterfly valve (Part Number (P/N) 205-5-260-09) to the shaft (P/N 205-5-260-07) of the engine induction valve assembly (P/N 205-5-260-101 or P/N 205-5-260-01) in accordance with the "Instruction" section of SIAI-Marchetti Service Bulletin No. 205B55, dated December 11, 1981. b) Airplane may be flown in accordance with FAR 21.197 to a location where this Airworthiness Directive (AD) can be accomplished. c) An equivalent method of compliance with this AD if used must be approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, 1000 Brussels, Belgium. This amendment becomes effective on April 14, 1983. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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