AD 51-21-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | JGS Properties, LLC | 11A | Airworthiness Directives; Luscombe Model 11A Airplanes |
Unsafe Condition
Cracks, loose rivets, or deformation in the early type rudder bellcrank (P/N 11-5417) could lead to failure of the rudder control system.
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Required Actions
Inspect the rudder control system bellcrank (P/N 11-5417) for cracks, loose rivets, or deformation. Replace damaged bellcranks with late type P/N 11-5417-D. Rig the system per Luscombe Drawing 11-5402 and avoid overtensioning rudder cables.
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Compliance Time
prior to 50 hours additional flight time and not later than October 15, 1951, and each 50 hours thereafter unless Luscombe P/N 11-5417-D is installed
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Affected Aircraft
Luscombe Model 11A Airplanes
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Federal Register Abstract
Rudder Bellcrank
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_51-21-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 51-21-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Luscombe Model 11A Airplanes Subject: Rudder Bellcrank Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: JGS Properties, LLC Model: 11A Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 51-21-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 51-21-03 SUBJECT HEADING: Airworthiness Directives; Luscombe Model 11A Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 51-21-03 LUSCOMBE: Applies to Model 11A Airplanes. Compliance required prior to 50 hours additional flight time and not later than October 15, 1951, and each 50 hours thereafter unless Luscombe P/N 11-5417-D is installed. Inspect rudder control system bellcrank, P/N 11-5417, located under forward cabin floor, for cracks, loose rivets, or deformation. If this bellcrank is damaged in any way, it must be repaired or replaced with the late type, P/N 11-5417-D. The early type bellcrank may be identified by its having four rivets or four AN 3 bolts attaching the center bearing block to the bellcrank. The late type bellcrank has 10 rivets attaching the center bearing block to the bellcrank, and this bearing block is longer to accommodate the added rivets. If the early type bellcrank is installed and is found undamaged, or is repaired and reinstalled, this inspection must be repeated each 50 hours of flight time. If the late type bellcrank is found to be installed, or is installed to replace the early type, only routine maintenance inspections are required. In installing either type of bellcrank in the rudder system, the system must be rigged in accordance with Luscombe Airplane Corp., Drawing 11-5402. Care must be taken not to overtension the rudder cables, since this overtensioning can cause failure of the bellcrank. FOOTER:
Document Text
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AD Final Rules - DRS_51-21-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 51-21-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Luscombe Model 11A Airplanes Subject: Rudder Bellcrank Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: JGS Properties, LLC Model: 11A 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: 51-21-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 51-21-03 SUBJECT HEADING: Airworthiness Directives; Luscombe Model 11A Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 51-21-03 LUSCOMBE: Applies to Model 11A Airplanes. Compliance required prior to 50 hours additional flight time and not later than October 15, 1951, and each 50 hours thereafter unless Luscombe P/N 11-5417-D is installed. Inspect rudder control system bellcrank, P/N 11-5417, located under forward cabin floor, for cracks, loose rivets, or deformation. If this bellcrank is damaged in any way, it must be repaired or replaced with the late type, P/N 11-5417-D. The early type bellcrank may be identified by its having four rivets or four AN 3 bolts attaching the center bearing block to the bellcrank. The late type bellcrank has 10 rivets attaching the center bearing block to the bellcrank, and this bearing block is longer to accommodate the added rivets. If the early type bellcrank is installed and is found undamaged, or is repaired and reinstalled, this inspection must be repeated each 50 hours of flight time. If the late type bellcrank is found to be installed, or is installed to replace the early type, only routine maintenance inspections are required. In installing either type of bellcrank in the rudder system, the system must be rigged in accordance with Luscombe Airplane Corp., Drawing 11-5402. Care must be taken not to overtension the rudder cables, since this overtensioning can cause failure of the bellcrank. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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