AD 48-10-02

AD Final Rules - DRS_48-10-02.html
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AD Number:
48-10-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; Bell Model 47B Series and 47D Helicopters
Subject:
Rotor Blade Rework
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Scotts-Bell 47 Inc
Model:
47B | 47B3 | 47D
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Superseded AD: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Superseded By: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: 48-10-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   48-10-02

SUBJECT HEADING:   Airworthiness Directives; Bell Model 47B Series and 47D Helicopters

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
48-10-02 BELL: Applies to Models 47B Series and 47D.

Compliance required by April 1, 1948.

As a precautionary measure, remove main wood rotor blades and inspect area between the outboard edge of face plates and inboard edge of fiberglass cover, and also the extreme butt end for wood checks or cracks. When inspection is completed, the extent of check, cracks and wood condition found should be reported to the manufacturer who has provided forms for this purpose in his Service Bulletin. Report also if inspection results reveal no checks or cracks.

Upon completion of inspection and prior to flight the cracks should be filled with Minnesota Mining and Manufacturing Co. 3M adhesive filler No. EC612. After the filler has dried, five brush coats of Minnesota Mining and Manufacturing Co. adhesive sealer No. EC498 should be applied to the inspected area. If no checks or cracks are present, only the five brush coats of sealer must be applied.

(Bell Service Bulletin No. 47C47, revised March 4, 1948, contains more detailed information on this subject.)

FOOTER: