AD 47-41-08

AD Final Rules - DRS_47-41-08.html
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AD Number:
47-41-08
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Bell Model 47B Series Airplanes
Subject:
Stabilizer Bar Mixing Levers
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Scotts-Bell 47 Inc
Model:
47B | 47B3
Product Type:
Aircraft
Product Subtype:
Rotorcraft
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 47-41-08
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   47-41-08

SUBJECT HEADING:   Airworthiness Directives; Bell Model 47B Series Airplanes

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
47-41-08 BELL: (Was Mandatory Note 20 of AD-1H-2.) Applies to All Models of 47B Series, Through Serial Number 78.

Compliance required at next 100-hour inspection.

The stabilizer bar mixing levers should be reworked by cutting away the lower inboard edge of a 2-inch radius from a center position 1 1/2 inches from the vertical centerline of the center hole. The cut should not be more than 1/8 inch at its deepest point and the sharp corners, resulting from the removal of this segment, should be rounded by a 1/2-inch radius. This reworking will eliminate the interference between those levers and the stabilizer bar damper, which may exist when the stabilizer bar is depressed 5 degrees.

(Complete instructions are carried by Bell Service Bulletin 47C52, dated July 9, 1947.)

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