AD 85-19-07 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Burkhart Grob Luft-Und | GROB G 109 | Airworthiness Directives; BURKHART GROB Model G109 and G109B Powered Gliders |
| aircraft | Burkhart Grob Luft-Und | GROB G 109B | Airworthiness Directives; BURKHART GROB Model G109 and G109B Powered Gliders |
Unsafe Condition
Failure of the main landing gear legs due to cracks in legs with boreholes (P/N 109-5000.01).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect landing gear legs to determine if they have boreholes. If boreholes are present, inspect for cracks within the next 10 hours time in service and every 25 hours thereafter. Replace cracked legs before further flight and exchange borehole legs for non-borehole legs by January 31, 1986.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 10 hours time in service, and thereafter at intervals not to exceed 25 hours time in service from the last inspection. Exchange borehole legs no later than January 31, 1986.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Burkhart Grob Model G109 (serial numbers 6001 through 6159) and Model G109B (serial numbers 6200 through 6317 inclusive).
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Landing Gear Legs
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_85-19-07_R.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 85-19-07 R1 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BURKHART GROB Model G109 and G109B Powered Gliders Subject: Landing Gear Legs Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/10/1986 Make: Burkhart Grob Luft-Und Model: GROB G 109 | GROB G 109B Product Type: Aircraft Product Subtype: Glider Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 85-19-07 R1 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5202 AD NUMBER: 85-19-07 R1 SUBJECT HEADING: Airworthiness Directives; BURKHART GROB Model G109 and G109B Powered Gliders ACTION: SUMMARY: DATES: Effective January 10, 1986. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 85-19-07 R1 BURKHART GROB: Amendment 39-5132 as amended by Amendment 39-5202. Applies to Model G109 Powered Gliders (serial numbers 6001 through 6159 inclusive) and Model G109B Powered Gliders (serial numbers 6200 through 6317 inclusive) certificated in any category. Compliance is required as indicated unless already accomplished. To prevent failure of the main landing gear legs, accomplish the following: (a) Within the next 10 hours time in service, inspect the landing gear legs to determine if they are constructed with boreholes (P/N 109-5000.01) or without boreholes (P/N 109B-5000.01) in accordance with Instruction 1 of Grob-Werke Technical Information TM 817- 19, dated March 18, 1985. (b) If the landing gear is equipped with legs without boreholes no further action is necessary. (c) If the glider is equipped with landing gear legs with boreholes: (1) Within the next 10 hours time in service and thereafter at intervals not to exceed 25 hours time in service from the last inspection, inspect the legs for cracks in accordance with Instruction 2 of Grob-Werke Technical Information TN 817-19, dated March 18, 1985. If cracks are found, replace landing gear leg with a serviceable part before further flight. (2) Exchange landing gear legs with boreholes for landing gear legs without boreholes in accordance with Instruction 4 of Grob-Werke Technical Information TM 817-19, dated March 18, 1985, no later than January 31, 1986. NOTE: Dimensions shown in TM 817-19 are in millimeters. Upon request, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Aircraft Certification Office, AEU-100, FAA, Europe, Africa, and Middle East Office, c/o American Embassy, Brussels, Belgium 09667-1011, telephone 513.38.30. Upon submission of substantiating data by an owner or operator through an FAA maintenance inspector, the Manager, Brussels Aircraft Certification Office, may adjust the compliance time specified in this AD. Grob-Werke Technical Information TM 817-19 dated March 18, 1985, is incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received this document from the manufacturer may obtain copies upon request to Burkhart Grob of America, 1070 Navajo Drive, Bluffton Airport Complex, Bluffton, Ohio 45817. These documents also may be examined at the Office of the Regional Counsel, FAA, New England Region, Room 311, 12 New England Executive Park, Burlington, Massachusetts 01803. Amendment 39-5132 became effective on September 19, 1985. This Amendment 39-5202 becomes effective on January 10, 1986. FOOTER:
Document Text
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AD Final Rules - DRS_85-19-07_R.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 85-19-07 R1 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BURKHART GROB Model G109 and G109B Powered Gliders Subject: Landing Gear Legs Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/10/1986 Make: Burkhart Grob Luft-Und Model: GROB G 109 | GROB G 109B 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: 85-19-07 R1 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-5202 AD NUMBER: 85-19-07 R1 SUBJECT HEADING: Airworthiness Directives; BURKHART GROB Model G109 and G109B Powered Gliders ACTION: SUMMARY: DATES: Effective January 10, 1986. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 85-19-07 R1 BURKHART GROB: Amendment 39-5132 as amended by Amendment 39-5202. Applies to Model G109 Powered Gliders (serial numbers 6001 through 6159 inclusive) and Model G109B Powered Gliders (serial numbers 6200 through 6317 inclusive) certificated in any category. Compliance is required as indicated unless already accomplished. To prevent failure of the main landing gear legs, accomplish the following: (a) Within the next 10 hours time in service, inspect the landing gear legs to determine if they are constructed with boreholes (P/N 109-5000.01) or without boreholes (P/N 109B-5000.01) in accordance with Instruction 1 of Grob-Werke Technical Information TM 817- 19, dated March 18, 1985. (b) If the landing gear is equipped with legs without boreholes no further action is necessary. (c) If the glider is equipped with landing gear legs with boreholes: (1) Within the next 10 hours time in service and thereafter at intervals not to exceed 25 hours time in service from the last inspection, inspect the legs for cracks in accordance with Instruction 2 of Grob-Werke Technical Information TN 817-19, dated March 18, 1985. If cracks are found, replace landing gear leg with a serviceable part before further flight. (2) Exchange landing gear legs with boreholes for landing gear legs without boreholes in accordance with Instruction 4 of Grob-Werke Technical Information TM 817-19, dated March 18, 1985, no later than January 31, 1986. NOTE: Dimensions shown in TM 817-19 are in millimeters. Upon request, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Aircraft Certification Office, AEU-100, FAA, Europe, Africa, and Middle East Office, c/o American Embassy, Brussels, Belgium 09667-1011, telephone 513.38.30. Upon submission of substantiating data by an owner or operator through an FAA maintenance inspector, the Manager, Brussels Aircraft Certification Office, may adjust the compliance time specified in this AD. Grob-Werke Technical Information TM 817-19 dated March 18, 1985, is incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received this document from the manufacturer may obtain copies upon request to Burkhart Grob of America, 1070 Navajo Drive, Bluffton Airport Complex, Bluffton, Ohio 45817. These documents also may be examined at the Office of the Regional Counsel, FAA, New England Region, Room 311, 12 New England Executive Park, Burlington, Massachusetts 01803. Amendment 39-5132 became effective on September 19, 1985. This Amendment 39-5202 becomes effective on January 10, 1986. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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