AD 58-07-01

AD Final Rules - DRS_58-07-01.html
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AD Number:
58-07-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
HARTZELL Models HC-12X20, HC-13X20, HC-82X and HC-83X Series Propellers
Subject:
Split Rings
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Hartzell Propeller, Inc.
Model:
HC-12X20-1 | HC-12X20-2 | HC-12X20-3 | HC-12X20-4 | HC-12X20-5 | HC-12X20-6 | HC-12X20-7 | HC-12X20-...Show more
Product Type:
Propeller
Product Subtype:
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 58-07-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   58-07-01

SUBJECT HEADING:   HARTZELL Models HC-12X20, HC-13X20, HC-82X and HC-83X Series Propellers

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
58-07-01 HARTZELL: Applies to All HC-12X20, HC-13X20, HC-82X and HC-83X Series Propellers.

Compliance required at the next propeller overhaul.

To minimize the possibility of fatigue failure of the split rings used to retain the blades in the hub, replace all unmarked split rings with new split rings marked with the letter "N". The new production rings have a higher safety factor. Recent failures involving the old type split rings have been covered in airworthiness directives concerned with the particular propeller model or hub-blade combination involved.

(Hartzell Service Bulletin No. 58 covers this same subject.)

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