AD 91-02-05
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | GQ Security Parachutes | Parachute Canopies | Airworthiness Directives; GQ SECURITY PARACHUTES, INC. Model No. 79A1684-( ) Parachute Canopies approved under TSO C23b. |
| appliance | GQ Security Parachutes | Parachute Canopies | Airworthiness Directives; GQ SECURITY PARACHUTES, INC. Model No. 79A1684-( ) Parachute Canopies approved under TSO C23b. |
Unsafe Condition
Failure of parachute canopy due to deteriorating canopy material, including deteriorating fabric tensile strength and acidic mesh (netting) material.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove or obliterate TSO C23b marking and remove canopy from service prior to further use after June 17, 1988. For canopies previously granted an alternate means of compliance, at the next repack after the effective date, test canopy fabric tensile strength per PIA Technical Standard 108 and test mesh material acidity using Bromocresol Green Solution. Neutralize acidity if present. Acceptable prior tests under AD 88-05-08 may be used.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to further use after June 17, 1988. For canopies previously granted an alternate means of compliance, at the next repack after the effective date of this amendment (January 14, 1991).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
GQ Security Parachutes, Inc. Model No. 79A1684-( ) Parachute Canopies approved under TSO C23b.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Parachute Canopies
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_91-02-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-02-05 Document Type: AD Final Rules Docket Number: 90-NM-246-AD Subject Heading: Airworthiness Directives; GQ SECURITY PARACHUTES, INC. Model No. 79A1684-( ) Parachute Canopies app...Show more Subject: Parachute Canopies Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/14/1991 Make: GQ Security Parachutes Model: Parachute Canopies Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 91-02-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 90-NM-246-AD AMENDMENT: 39-6854 AD NUMBER: 91-02-05 SUBJECT HEADING: Airworthiness Directives; GQ SECURITY PARACHUTES, INC. Model No. 79A1684-( ) Parachute Canopies approved under TSO C23b. ACTION: SUMMARY: DATES: Effective January 14, 1991. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-02-05 GQ SECURITY PARACHUTES, INC.: Amendment 39-6854. Docket No. 90-NM-246-AD. Applicability: Model No. 79A1684-( ) parachute canopies approved under TSO C23b. Compliance: Required as indicated, unless previously accomplished. To prevent the failure of parachute canopy due to deteriorating canopy material, accomplish the following: A. Prior to further use after June 17, 1988 (the effective date of Amendment 39-5942, AD 88-05-08), remove or obliterate the TSO C23b marking from the parachute canopy and remove the canopy from service. B. For canopies previously granted an alternate means of compliance with AD 88-05-08 and subsequently returned to service: At the next repack after the effective date of this amendment, remove the canopy from service until the requirements of paragraph B.1. and B.2. of this AD are accomplished 1. Determine that canopy fabric tensile strength is acceptable in accordance with Parachute Industry Association Publication PIA - Technical Standard 108, Parachute Canopy Fabric Tensile Test, Non-Destructive Method, dated January 25, 1989. 2. Test the mesh (netting) material, using Bromocresol Green Solution, to determine if it is acidic. If it is acidic, the canopy cannot be returned to service unless the acidic condition is neutralized. NOTE: Washing the canopy in detergent has been found to be effective in acid neutralization. C. Acidity tests and fabric tensile tests conducted as an approved alternate means of compliance with AD 88-05-08 meet the requirements of paragraphs B.1. and B.2. of this AD. D. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Los Angeles Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. A copy of all documents applicable to this AD may be examined at the Federal Aviation Administration (FAA), Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington; or at the Los Angeles Aircraft Certification Office, 3229 East Spring Street, Long Beach, California. Airworthiness Directive 91-02-05 supersedes AD 88-05-08, Amendment 39-5942. This amendment (39-6854, AD 91-02-05) becomes effective on January 14, 1991. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_91-02-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 91-02-05 Document Type: AD Final Rules Docket Number: 90-NM-246-AD Subject Heading: Airworthiness Directives; GQ SECURITY PARACHUTES, INC. Model No. 79A1684-( ) Parachute Canopies app...Show more Subject: Parachute Canopies Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/14/1991 Make: GQ Security Parachutes Model: Parachute Canopies Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 91-02-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: 90-NM-246-AD AMENDMENT: 39-6854 AD NUMBER: 91-02-05 SUBJECT HEADING: Airworthiness Directives; GQ SECURITY PARACHUTES, INC. Model No. 79A1684-( ) Parachute Canopies approved under TSO C23b. ACTION: SUMMARY: DATES: Effective January 14, 1991. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 91-02-05 GQ SECURITY PARACHUTES, INC.: Amendment 39-6854. Docket No. 90-NM-246-AD. Applicability: Model No. 79A1684-( ) parachute canopies approved under TSO C23b. Compliance: Required as indicated, unless previously accomplished. To prevent the failure of parachute canopy due to deteriorating canopy material, accomplish the following: A. Prior to further use after June 17, 1988 (the effective date of Amendment 39-5942, AD 88-05-08), remove or obliterate the TSO C23b marking from the parachute canopy and remove the canopy from service. B. For canopies previously granted an alternate means of compliance with AD 88-05-08 and subsequently returned to service: At the next repack after the effective date of this amendment, remove the canopy from service until the requirements of paragraph B.1. and B.2. of this AD are accomplished 1. Determine that canopy fabric tensile strength is acceptable in accordance with Parachute Industry Association Publication PIA - Technical Standard 108, Parachute Canopy Fabric Tensile Test, Non-Destructive Method, dated January 25, 1989. 2. Test the mesh (netting) material, using Bromocresol Green Solution, to determine if it is acidic. If it is acidic, the canopy cannot be returned to service unless the acidic condition is neutralized. NOTE: Washing the canopy in detergent has been found to be effective in acid neutralization. C. Acidity tests and fabric tensile tests conducted as an approved alternate means of compliance with AD 88-05-08 meet the requirements of paragraphs B.1. and B.2. of this AD. D. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Los Angeles Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. A copy of all documents applicable to this AD may be examined at the Federal Aviation Administration (FAA), Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington; or at the Los Angeles Aircraft Certification Office, 3229 East Spring Street, Long Beach, California. Airworthiness Directive 91-02-05 supersedes AD 88-05-08, Amendment 39-5942. This amendment (39-6854, AD 91-02-05) becomes effective on January 14, 1991. FOOTER:
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