AD 90-23-03

AD Final Rules - DRS_90-23-03.html
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AD Number:
90-23-03
Document Type:
AD Final Rules
Docket Number:
89-ASW-66
Subject Heading:
Airworthiness Directives; AEROSPATIALE (SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE) Model AS 350 an...Show more
Subject:
Main Rotor Servo Control
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
11/02/1990
Effective Date:
12/03/1990
Make:
Airbus Helicopters
Model:
AS355E | AS355F | AS355F1 | AS355F2 | AS350B | AS350B1 | AS350B2 | AS350C | AS350D | AS350D1
Product Type:
Aircraft
Product Subtype:
Rotorcraft
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
AIR-700: Compliance & Airworthiness Division
Office of Primary Responsibility:
AIR-730: International Validation Branch
CFR Part Reference:
Part 39
Comments:
Updated RGL applicability to match AD applicability; CAR C-11-185
AIRWORTHINESS DIRECTIVES FINAL RULES: 90-23-03
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   89-ASW-66

AMENDMENT:   39-6777

AD NUMBER:   90-23-03

SUBJECT HEADING:   Airworthiness Directives; AEROSPATIALE (SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE) Model AS 350 and AS 355 Series Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective December 3, 1990.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
90-23-03 AEROSPATIALE (SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE): Amendment 39-6777. Docket No. 89-ASW-66.

Applicability: Model AS 350 and AS 355 series helicopters, with Dunlop main rotor servo controls, part numbers (P/N) AC 64182, AC 67030, AC 66442, and AC 67034 installed.

Compliance: Required as indicated, unless already accomplished.

To prevent failure or malfunction of the main rotor servo controls due to icing, which could result in loss of control of the helicopter, accomplish the following:

(a) Within the next 300 hours' time in service, install a protective cover on each main rotor servo control in accordance with the Accomplishment Instructions of Aerospatiale Service Bulletin No. 67.11, dated March 23, 1989, or 67.14, dated April 18, 1990, as applicable.

(b) An alternate method of compliance or adjustment of the compliance times, which provides an equivalent level of safety, may be used if approved by the Manager, Rotorcraft Standards Staff, ASW-110, Rotorcraft Directorate, Aircraft Certification Service, Fort Worth, Texas 76193-0110.

The installation procedures shall be done in accordance with Aerospatiale Service Bulletin No. 67.11, dated March 23, 1989, or 67.14, dated April 18, 1990, as applicable. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Aerospatiale Helicopter Corporation, 2701 Forum Drive, Grand Prairie, Texas 75053-4005. Copies may be inspected at the Rules Docket in the Office of the Assistant Chief Counsel, FAA, 4400 Blue Mound Road, Bldg. 3B, Room 158, Fort Worth, Texas, or at the Office of the Federal Register, 1100 L Street, N.W., Room 8301, Washington, DC.

This amendment (39-6777, AD 90-23-03) becomes effective on December 3, 1990.

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