AD 52-13-01

AD Final Rules - DRS_52-13-01.html
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AD Number:
52-13-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; COLLINS RADIO: Applies to All Models 51R-1 and 51R-2 Radio Receivers
Subject:
Radio Receivers
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Collins Radio
Model:
Receivers
Product Type:
Appliance
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Superseded AD: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Superseded By: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: 52-13-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   52-13-01

SUBJECT HEADING:   Airworthiness Directives; COLLINS RADIO: Applies to All Models 51R-1 and 51R-2 Radio Receivers

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
52-13-01 COLLINS RADIO: Applies to All Models 51R-1 and 51R-2 Radio Receivers.

Compliance required by November 1, 1952.

To eliminate failures of 90/150 cycle tone localizer filters due to electrodeposition of copper from the coil windings to the laminated iron core, modify the receiver in accordance with Collins 51R-1 and -2 Service Bulletin No. 21, dated May 7, 1952, by removing the B plus voltage from the 90 and 150 cycle filter input circuits.

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