AD 73-20-05

AD Final Rules - DRS_73-20-05.html
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AD Number:
73-20-05
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; de Havilland Model DHC-6 Twin Otter Floatplanes all Series
Subject:
Float To Fuselage Bolts
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/03/1973
Make:
Viking Air Limited
Model:
DHC-6-1 | DHC-6-100 | DHC-6-200 | DHC-6-300
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Superseded AD: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Superseded By: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: 73-20-05
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-1725

AD NUMBER:   73-20-05

SUBJECT HEADING:   Airworthiness Directives; de Havilland Model DHC-6 Twin Otter Floatplanes all Series

ACTION:  

SUMMARY:  

DATES:   Effective October 3, 1973.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
73-20-05 de HAVILLAND: Model DHC-6. Amdt. 39-1725. Applies to de Havilland Model DHC-6 Twin Otter Floatplanes, all Series, certificated in all categories, equipped with Canadian Aircraft Products Model 12000A or 12000B Floats installed prior to Float Serial No. 71.

1. Compliance is required within the next ten hours in service from the effective date of this Airworthiness Directive, unless already accomplished.

To prevent loosening and subsequent pullout failure of certain float to fuselage bolts, comply with accomplishment instruction of de Havilland Service Bulletin 6/296, Revision A, dated May 11, 1973, or an equivalent alteration approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.

This amendment is effective October 3, 1973.

FOOTER: