AD 51-21-03

final rule

Airworthiness Directives; Luscombe Model 11A Airplanes

AD Number
51-21-03
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of an aircraft flight control surface and actuator
Problem area Flight controls

Applicability

TypeManufacturerModelDetails
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.

AI-generated summary from the source AD text. Verify against the official source before acting.

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.

AI-generated summary from the source AD text. Verify against the official source before acting.

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

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Luscombe Model 11A Airplanes

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Rudder Bellcrank

Applicability Source Text

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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Superseded AD: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Superseded By: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

Show stored source text (verify against official source)
AD Final Rules - DRS_51-21-03.html
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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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