AD 49-43-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8 | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft. |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8A | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft. |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8B | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft. |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8C | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft. |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8D | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft. |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8E | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft. |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | 8F | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft. |
| aircraft | Don Luscombe Aviation History Foundation, Inc. | T-8F | Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft. |
Unsafe Condition
Excessive tightening of the stabilizer-fuselage front fittings attachment bolts causing crushing of the spacers and spar flanges, potentially leading to cracks in the stabilizer front spar.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect stabilizer front spar and aluminum alloy reinforcing spacers for crushing or cracks. Replace crushed spacers with 4130 steel spacers of at least 0.049-inch thickness, either fabricated from tube or using blind rivets. Repair spar if cracks or appreciable crushing is found.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
before December 15, 1949, or at the next 100-hour inspection whichever occurs first
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
LUSCOMBE Model 8 Series Aircraft (all models: 8, 8A, 8B, 8C, 8D, 8E, 8F, T-8F)
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Stabilizer Spar Inspection
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_49-43-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 49-43-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft. Subject: Stabilizer Spar Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Don Luscombe Aviation History Foundation, Inc. Model: 8 | 8A | 8B | 8C | 8D | 8E | 8F | T-8F 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: 49-43-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 49-43-02 SUBJECT HEADING: Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft. ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 49-43-02 LUSCOMBE: Applies to All Model 8 Series Aircraft. Compliance required before December 15, 1949, or at the next 100-hour inspection whichever occurs first. As a result of several cases of excessive tightening of the attachment bolts for the stabilizer-fuselage front fittings thereby crushing the spacers and spar flanges, the following inspections and/or replacement are necessary: Inspect for crushing of the stabilizer front spar and the aluminum alloy reinforcing spacers. A slight set in the spar flange is not considered critical as long as no cracks exist in the spar. If appreciable crushing of the spar flange or cracks are found, the spar must be repaired and the aluminum alloy reinforcing spacers must be replaced. If spacers are crushed, they must be replaced. Spacers should be replaced with similar spacers fabricated of 4130 steel of at least 0.049- inch thickness and may be attached to the spar using blind rivets the same size as the original rivets. An acceptable alternate replacement spacer may be made by cutting a 3/8-inch by 0.049- inch steel tube to fit between the spar flanges. The steel spacers should be zinc-chromated prior to the reassembly. Excessive tightening of the attachment bolts should be avoided on reassembly. (A torque value of 50 to 75 inch-pounds should be sufficient.) FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_49-43-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 49-43-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft. Subject: Stabilizer Spar Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Don Luscombe Aviation History Foundation, Inc. Model: 8 | 8A | 8B | 8C | 8D | 8E | 8F | T-8F 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: 49-43-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 49-43-02 SUBJECT HEADING: Airworthiness Directives; LUSCOMBE Model 8 Series Aircraft. ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 49-43-02 LUSCOMBE: Applies to All Model 8 Series Aircraft. Compliance required before December 15, 1949, or at the next 100-hour inspection whichever occurs first. As a result of several cases of excessive tightening of the attachment bolts for the stabilizer-fuselage front fittings thereby crushing the spacers and spar flanges, the following inspections and/or replacement are necessary: Inspect for crushing of the stabilizer front spar and the aluminum alloy reinforcing spacers. A slight set in the spar flange is not considered critical as long as no cracks exist in the spar. If appreciable crushing of the spar flange or cracks are found, the spar must be repaired and the aluminum alloy reinforcing spacers must be replaced. If spacers are crushed, they must be replaced. Spacers should be replaced with similar spacers fabricated of 4130 steel of at least 0.049- inch thickness and may be attached to the spar using blind rivets the same size as the original rivets. An acceptable alternate replacement spacer may be made by cutting a 3/8-inch by 0.049- inch steel tube to fit between the spar flanges. The steel spacers should be zinc-chromated prior to the reassembly. Excessive tightening of the attachment bolts should be avoided on reassembly. (A torque value of 50 to 75 inch-pounds should be sufficient.) FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
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