AD 81-21-06

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AD Number:
81-21-06
Document Type:
AD Final Rules
Docket Number:
81-ASW-42
Subject Heading:
Airworthiness Directives; SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS) Model SA 330 Series Helicopters
Subject:
Main Rotor Heads
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/12/1981
Make:
Airbus Helicopters
Model:
SA330F | SA330G | SA330J
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Superseded AD: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Superseded By: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: 81-21-06
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   81-ASW-42

AMENDMENT:   39-4226

AD NUMBER:   81-21-06

SUBJECT HEADING:   Airworthiness Directives; SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS) Model SA 330 Series Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective October 12, 1981.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
81-21-06 SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS): Amendment 39-4226. Applies to all Model SA 330 series helicopters certificated in all categories. (Airworthiness Docket No. 81-ASW-42.)

Compliance is required within 50 hours' time in service after the effective date of this AD, unless already accomplished.

To ensure bearing lubrication and to prevent balls escaping from each main rotor blade lever assembly eyebolt pivot ball bearing, accomplish the following:

(a) Applies to main rotor heads P/N 330A.31.0020 and 330A.31.0030, all dash numbers, not modified to AMS 07.43.008. Incorporate modification AMS 07.43.008 as described in paragraph 2, Accomplishment Instructions, of SNIAS Service Bulletin No. 65.30, dated November 20, 1979, or FAA approved equivalent.

(b) Applies to main rotor heads P/N 330A.31.0020 and 330A.31.0030, all dash numbers, not modified to AMS 07.43.028. Incorporate modification AMS 07.43.028 as described in paragraph 2, Accomplishment Instructions, of SNIAS Service Bulletin No. 65.38, dated July 4, 1980, or FAA approved equivalent.

(c) Applies to main rotor heads P/N 330A.31.0000.05 to .18 inclusive not modified to AMS 330A.07.43.038, and main rotor heads 330A.31.0020.00 to .04 inclusive not modified to AMS 330A.07.43.037, and main rotor heads P/N 330A.31.0030.00 to .03 inclusive not modified to AMS 330A.07.43.037. Inspect in accordance with paragraph C, Description, of SNIAS Service Bulletin No. 01.33, dated March 31, 1981, or FAA approved equivalent. Before further flight, replace bearings which are not fitted with sealing flange retaining ring, with serviceable bearings having the same MRC part number, that are fitted with the sealing flange retaining ring, or with serviceable bearings manufactured by FAFNIR, or with an FAA approved equivalent bearing.

(d) Equivalent means of compliance with this AD must be approved by the Chief, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Office, Federal Aviation Administration, c/o American Embassy, Brussels Belgium.

This amendment becomes effective October 12, 1981.

FOOTER: