AD 71-17-09
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | K & L Soaring LLC | SGS 1-23H | Airworthiness Directives; Schweizer Model SGS 1-23H Glider |
| aircraft | K & L Soaring LLC | SGS 1-23H-15 | Airworthiness Directives; Schweizer Model SGS 1-23H Glider |
Unsafe Condition
Excessively loose rudder fittings can cause severe oscillations and vibrations.
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Required Actions
Inspect lower and upper rudder and fin hinges (P/N 1A-107-2, P/N 23H704-16 & -17, P/N 1A-105-2, P/N 23H705-21) to ensure free-play does not exceed 0.005 inches. Replace hinges and bolts with same part numbers or FAA-approved equivalents if limits are exceeded, or incorporate Schweizer SB No. 102-23-2 or equivalent modification approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.
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Compliance Time
Within the next 25 hours time in service unless accomplished within the last 75 hours time in service and thereafter at intervals not to exceed 100 hours time in service
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Affected Aircraft
Schweizer Model SGS 1-23H Gliders
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Federal Register Abstract
Loose Rudder Fittings
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_71-17-09.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 71-17-09 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Schweizer Model SGS 1-23H Glider Subject: Loose Rudder Fittings Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/26/1971 Make: K & L Soaring LLC Model: SGS 1-23H | SGS 1-23H-15 Product Type: Aircraft Product Subtype: Glider Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 71-17-09 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1272 AD NUMBER: 71-17-09 SUBJECT HEADING: Airworthiness Directives; Schweizer Model SGS 1-23H Glider ACTION: SUMMARY: DATES: Effective August 26, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 71-17-09 SCHWEIZER AIRCRAFT: Amdt. 39-1272. Applies to SGS 1-23H. Type Gliders. To prevent severe oscillations and vibrations resulting from excessively loose rudder fittings accomplish the following: (a) Within the next 25 hours time in service unless accomplished within the last 75 hours time in service and thereafter at intervals not to exceed 100 hours time in service, inspect the lower and upper rudder and fin hinges P/N 1A-107-2, P/N 23H704-16 & -17, P/N 1A-105-2 and P/N 23H705-21, to assure that neither the fore and aft nor the sidewards free-play exceeds five-thousandths (0.005) inches. (b) If free-play in excess of the limits set forth in paragraph (a) is found, replace hinges and their connecting bolts with parts of the same part number or with FAA approved equivalent parts; or incorporate a modification described in Schweizer Aircraft Corporation Service Bulletin No. 102-23-2 dated 29 June 1971 or an FAA approved equivalent modification. Equivalent parts or modifications must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. (c) The compliance times may be increased by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region upon receipt of substantiating data submitted through an FAA Maintenance Inspector. This amendment becomes effective August 26, 1971. FOOTER:
Document Text
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AD Final Rules - DRS_71-17-09.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 71-17-09 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Schweizer Model SGS 1-23H Glider Subject: Loose Rudder Fittings Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/26/1971 Make: K & L Soaring LLC Model: SGS 1-23H | SGS 1-23H-15 Product Type: Aircraft Product Subtype: Glider Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 71-17-09 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1272 AD NUMBER: 71-17-09 SUBJECT HEADING: Airworthiness Directives; Schweizer Model SGS 1-23H Glider ACTION: SUMMARY: DATES: Effective August 26, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 71-17-09 SCHWEIZER AIRCRAFT: Amdt. 39-1272. Applies to SGS 1-23H. Type Gliders. To prevent severe oscillations and vibrations resulting from excessively loose rudder fittings accomplish the following: (a) Within the next 25 hours time in service unless accomplished within the last 75 hours time in service and thereafter at intervals not to exceed 100 hours time in service, inspect the lower and upper rudder and fin hinges P/N 1A-107-2, P/N 23H704-16 & -17, P/N 1A-105-2 and P/N 23H705-21, to assure that neither the fore and aft nor the sidewards free-play exceeds five-thousandths (0.005) inches. (b) If free-play in excess of the limits set forth in paragraph (a) is found, replace hinges and their connecting bolts with parts of the same part number or with FAA approved equivalent parts; or incorporate a modification described in Schweizer Aircraft Corporation Service Bulletin No. 102-23-2 dated 29 June 1971 or an FAA approved equivalent modification. Equivalent parts or modifications must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. (c) The compliance times may be increased by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region upon receipt of substantiating data submitted through an FAA Maintenance Inspector. This amendment becomes effective August 26, 1971. FOOTER:
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