AD 83-07-13

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AD Number:
83-07-13
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; AERONAUTICA MACCHI S.p.A. Model AL60 and AL60- B Airplanes
Subject:
Engine Mount Structure
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
04/14/1983
Make:
Aeronautica Macchi S.p.A.
Model:
AL 60 | AL 60-B
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Superseded AD: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Superseded By: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: 83-07-13
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-4626

AD NUMBER:   83-07-13

SUBJECT HEADING:   Airworthiness Directives; AERONAUTICA MACCHI S.p.A. Model AL60 and AL60- B Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective April 14, 1983.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
83-07-13 AERONAUTICA MACCHI S.p.A.: Amendment 39-4626. Applies to Model AL60 and AL60- B airplanes certificated in any category.

Compliance: Required as indicated, unless already accomplished.

To preclude failure of the engine mount structure, accomplish the following:

(a) Within the next 100 hours time-in-service and thereafter at intervals not to exceed 100 hours time- in-service, visually inspect the front left hand brace of the engine mount for dents as specified in Aer Macchi Service Bulletin No. SB-L-0005, Revision 1, dated September 26, 1978; herein referred to as the Service Bulletin.

(1) If no dents are found in the front left hand brace of the engine mount during accomplishment of the visual inspection in accordance with paragraph (a) of this AD, return aircraft to service.

(2) If dents of a depth less than 0.5mm are found in the front left hand brace of the engine mount during accomplishment of the visual inspection in accordance with paragraph (a) of this AD, before further flight, reposition attaching collar of the exhaust ducts as high as possible to obtain clearance between the attaching collar and the left hand brace of the engine mount and return aircraft to service.

(3) If dents of a depth of 0.5mm or greater are found in the front left hand brace of the engine mount during accomplishment of the visual inspection in accordance with paragraph (a) of this AD, before further flight, repair in accordance with instructions provided in the "DESCRIPTION AND INSTRUCTION DATA" section of the Service Bulletin, reposition attaching collar of the exhaust ducts as high as possible to obtain clearance between the attaching collar and the left hand brace of the engine mount and return aircraft to service.

(b) Repair those aircraft which have previously been modified in accordance with the instructions contained in Aer Macchi Service Bulletin No. AL60/12 dated November 23, 1964, within the next 1200 hours time- in-service of the modification, in accordance with paragraph (a)(3) of this AD.

(c) Operators who have not kept records of hours time-in-service of the engine mounting structure must substitute airplane hours time-in-service in lieu thereof.

(d) Aircraft may be flown in accordance with Federal Aviation Regulation 21.197 to a location where this AD can be accomplished.

(e) An equivalent method of compliance with this AD, if used, must be approved by the Manager, Aircraft Certification Staff, AEU-100, Europe, Africa and Middle East Office, FAA, c/o American Embassy, 1000 Brussels, Belgium.

This amendment becomes effective on April 14, 1983.

FOOTER: