AD 59-02-02

AD Final Rules - DRS_59-02-02.html
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AD Number:
59-02-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; DOUGLAS All DC-7 Series Aircraft
Subject:
Engine Cowling Alining
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
The Boeing Company
Model:
DC-7 | DC-7B | DC-7C
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Superseded AD: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Superseded By: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:
AIRWORTHINESS DIRECTIVES FINAL RULES: 59-02-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   59-02-02

SUBJECT HEADING:   Airworthiness Directives; DOUGLAS All DC-7 Series Aircraft

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
59-02-02 DOUGLAS: Applies to All DC-7 Series Aircraft.

Compliance required as indicated.

There have been several incidents of the engine cowling moving forward in flight and striking the propeller. This has been caused by incorrect installation of the cowling on its mountings. In order to prevent incorrect installation of the cowling, more positive means of indexing and aligning must be provided. Pending installation of these means, special inspections are established.

(1) Effective at next cowl removal, unless modification per paragraph (2) has already been accomplished, perform a special inspection each time any segment of cowl is removed and replaced to assure that cowl indexing means are in satisfactory condition and that cowling is properly positioned.

(2) Not later than November 1, 1959, install improved supports for indexing and aligning the top left and right-hand cowling segments of each of the four powerplants. Douglas Service Bulletin No. 131 dated August 21, 1956, revised February 5, 1958, covers an acceptable means of accomplishing this change.


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