AD 81-26-02

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AD Number:
81-26-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS) Models SA360C and SA36...Show more
Subject:
Stabilizer Spar Tube Structure
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
12/21/1981
Make:
Airbus Helicopters
Model:
SA-360C Dauphin | SA-365C | SA-365C1 | SA-365C2
Product Type:
Aircraft
Product Subtype:
Rotorcraft
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 81-26-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-4278

AD NUMBER:   81-26-02

SUBJECT HEADING:   Airworthiness Directives; SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS) Models SA360C and SA365C Series Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective December 21, 1981.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
81-26-02 SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS): Amendment 39-4278. Applies to Models SA360C and SA365C series helicopters certificated in all categories.

Compliance is required as indicated.

To improve fatigue resistance and prevent possible cracks in the tail boom stabilizer spar attachment structure and to detect possible cracks in the stabilizer spar, accomplish the following:

(a) For Model SA360C series helicopters S/N up to and including 1034 and SA365C helicopter S/N 5003 only, comply with the following within 200 hours' time in service after the effective date of this AD unless already accomplished.

Modify the tail boom at the stabilizer tube mount in accordance with Aerospatiale Service Bulletin No. 53.01 dated July 17, 1978, by installing modification AMS 365A.07.1310 or by installing an equivalent modification approved by Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Office.

(b) For all Model SA360C series and SA365C series helicopters equipped with spar tubes, P/N 360A13.0012.01, comply with the following within 10 hours' time in service after the effective date of this AD unless already accomplished and thereafter at intervals not to exceed 50 hours' time in service from the last inspection.

(1) Remove the stabilizer spar tube from the helicopter and inspect the spar tube for cracks at the location of the weld beads for spacers and spar tube junction using a dye penetrant or equivalent inspection method.

(2) If the spar tube is cracked, discard the tube and install a serviceable tube before further flight and conduct repetitive inspections as specified in subparagraph (b).

(c) Equivalent means of compliance with the AD may be approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Offices.

(Aerospatiale SA360 Dauphin Service Bulletin No. 05.01 pertains to tail boom inspections. Telex Service 05-06 Dauphin pertains to the stabilizer spar tube inspections. Modification No. AMS07-3255 may improve the spar tube to spacer weld joint.)

This amendment becomes effective December 21, 1981.

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