AD 89-22-15

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AD Number:
89-22-15
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; AIRSHIP INDUSTRIES Model Skyship 600 Airships
Subject:
Envelope
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
02/16/1990
Make:
Skyship Services
Model:
Skyship 600
Product Type:
Aircraft
Product Subtype:
Airship
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 89-22-15
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-6435

AD NUMBER:   89-22-15

SUBJECT HEADING:   Airworthiness Directives; AIRSHIP INDUSTRIES Model Skyship 600 Airships

ACTION:  

SUMMARY:  

DATES:   Effective February 16, 1990.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
89-22-15 AIRSHIP INDUSTRIES: Amendment 39-6435. Final copy of priority letter AD.

Applicability: Model Skyship 600 (all serial numbers) airships, certificated in the airship category.

Compliance: Required as indicated, unless already accomplished.

To prevent seam delamination which could result in deflation of the envelope, accomplish the following:

(a) Prior to further flight, inspect the envelope for delamination of the envelope seams according to the instructions contained in Airship Industries Alert Service Bulletin No. SB REF 600-53-A317, dated September 15, 1989, and Revision 1, dated September 20, 1989.

(b) If delaminations of the envelope seams are found, prior to further flight, repair the seams according to the instructions contained in the above service bulletin.

(c) Within the next three calendar months after initial helium inflation of the airship, or within the next 10 days after receipt of this AD, whichever is later, paint the envelope in accordance with the appropriate manufacturer's instructions.

(d) Airships may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished.

(e) An alternate method of compliance or adjustment of the compliance times which provides an equivalent level of safety, may be approved by the Manager, Brussels Aircraft Certification Office, c/o American Embassy, APO New York 09667-1011.

NOTE: The request should be forwarded through an FAA Maintenance Inspector, who may add comments and then send it to the Manager, Brussels Aircraft Certification Office.

All persons affected by this directive may obtain copies of the document referred to herein upon request to Airship Industries, No. 1 Hanger, Cardington Airfield, Shortstown, Bedfordshire MK 42 OTF; or may examine this document at the FAA, Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106.

This amendment becomes effective February 16, 1990, as to all persons except those persons to whom it was made immediately effective by priority letter AD 89-22-15, issued October 27, 1989, which contained this amendment.

FOOTER: