AD 80-16-01 R1

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AD Number:
80-16-01 R1
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directive; MESSERSCHMITT-BOLKOW-BLOHM GmbH Model BO-105 Series Helicopters
Subject:
Engine Cowling Assemblies
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
09/19/1980
Make:
Airbus Helicopters Deutschland GmbH
Model:
BO-105A | BO-105C | BO-105S
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Superseded AD: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Superseded By: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: 80-16-01 R1
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-3929

AD NUMBER:   80-16-01 R1

SUBJECT HEADING:   Airworthiness Directive; MESSERSCHMITT-BOLKOW-BLOHM GmbH Model BO-105 Series Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective September 19, 1980.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
80-16-01 R1 MESSERSCHMITT-BOLKOW-BLOHM GmbH: Amendment 39-3859 as amended by Amendment 39-3929. Applies to Model BO-105 series helicopters, serial numbers up to and including 450, which have engine cowling assemblies P/N's 105-62502, 105-62503, 105-62651, 105-62656, 105-62657 or 105-62658 installed, certificated in all categories.

Compliance required prior to accumulation of 100 hours time in service after the effective date of this AD, or before November 15, 1980, whichever occurs later.

To assure the proper application of the fire protection paint and compliance with airworthiness requirements accomplish the following, unless already accomplished:

(a) (1) Remove the engine cowling; and

(2) Inspect for the presence of fire protection paint between the cowling and the asbestos fabric in accordance with paragraph A of Part 2, "ACCOMPLISHMENT INSTRUCTIONS," of Messerschmitt-Bolkow-Blohm Service Bulletin No. 60-46, dated August 20, 1979 (hereinafter referred to as the Service Bulletin), or an FAA-approved equivalent.

(b) If as a result of the inspection required in paragraph (a)(2) of this AD, no evidence of the presence of fire protection paint between the engine cowling and the asbestos fabric is found.

(1) Replace asbestos fabric if heat damage or brittleness are present in accordance with paragraph 2.B of "ACCOMPLISHMENT INSTRUCTIONS," of the Service Bulletin, or an FAA-approved equivalent; and

(2) Return the engine cowling assembly to service.

(c) If as a result of the inspection required in paragraph (a)(2) of this AD, evidence of the presence of fire protection paint between the engine cowling and the asbestos fabric is found, comply with the following in accordance with paragraph B of Part 2, "ACCOMPLISHMENT INSTRUCTIONS", of the Service Bulletin, or an FAA-approved equivalent -

(1) Remove the asbestos lining and install new asbestos lining;

(2) Apply fire protection paint and top lacquer to the asbestos lining; and

(3) Apply two coats Wiedokoll fire protection paint N6582.

(d) In accordance with FAR 21.197 and 21.199, the helicopter may be flown to a base where the repairs required by this AD may be accomplished.

(e) Before release to service of any engine cowling assemblies held as spares to which this AD is applicable, accomplish the inspection required in paragraph (a)(2) of this AD, and comply with paragraph (b) or (c) of this AD, as appropriate.

(f) For purposes of this AD, an FAA-approved equivalent must be approved by the Chief, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, Brussels, Belgium.

Amendment 39-3859 became effective August 11, 1980.
This Amendment 39-3929 becomes effective September 19, 1980.

FOOTER: