AD 47-51-12

AD Final Rules - DRS_47-51-12.html
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AD Number:
47-51-12
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; DOUGLAS C-47 Series Aircraft
Subject:
Carburetor Airscoop
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
The Boeing Company
Model:
DC3C-R-1830-90C | DC3C-S1C3G | DC3C-S4C4G
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
Updated RGL applicability to match AD applicability; CAR C-11-185
AIRWORTHINESS DIRECTIVES FINAL RULES: 47-51-12
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   47-51-12

SUBJECT HEADING:   Airworthiness Directives; DOUGLAS C-47 Series Aircraft

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
47-51-12 DOUGLAS: Applies to All converted C-47 Series Aircraft With Ram Non-ram (Hydraulic) Type Carburetor Airscoop.

To be accomplished not later than March 1, 1948.

Compliance with the following items is necessary to preclude carburetor icing:

1. The carburetor alcohol system must be used.

2. The accessory cowling and engine fire seal must maintain not more than 1/4-inch clearance of the collector ring.

3. The cable system for operation of the hot air door must be rigged to 30 pounds tension.

(Part B of Douglas Service Bulletin DC-3 No. 251 dated April 15, 1947, covers this same subject. Part A of the same Bulletin is not mandatory, but optional compliance may be accomplished when parts are available.)


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