AD 72-22-02
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Razorback Fabrics, Inc. | Fiberglass Fabric | Airworthiness Directives; RAZORBACK FABRICS, INC: Applies to Airplanes having Wings, Tail, or Control Surfaces Covered with Fiberglass |
| appliance | Razorback Fabrics, Inc. | Fiberglass Fabric | Airworthiness Directives; RAZORBACK FABRICS, INC: Applies to Airplanes having Wings, Tail, or Control Surfaces Covered with Fiberglass |
Unsafe Condition
Fiberglass covering attached with plastic coated glass rib stitch cord may delaminate due to the black plastic coating deteriorating, compromising structural integrity.
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Required Actions
Inspect the interior of wings, tail, or control surfaces to check for plastic coated rib stitch cord. If present, replace stitching with MIL-C-5649 cord or FAA approved equivalent. Patch holes as per FAA Advisory Circular 43.13-1.
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Compliance Time
within the next fifty hours' time in service after the effective date of this airworthiness directive
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Affected Aircraft
Airplanes having wings, tail, or control surfaces covered with fiberglass using the 'razorback' method, certificated in all categories.
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Federal Register Abstract
Fiberglass
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_72-22-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 72-22-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; RAZORBACK FABRICS, INC: Applies to Airplanes having Wings, Tail, or Cont...Show more Subject: Fiberglass Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 11/15/1972 Make: Razorback Fabrics, Inc. Model: Fiberglass Fabric Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 72-22-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1541 AD NUMBER: 72-22-02 SUBJECT HEADING: Airworthiness Directives; RAZORBACK FABRICS, INC: Applies to Airplanes having Wings, Tail, or Control Surfaces Covered with Fiberglass ACTION: SUMMARY: DATES: Effective November 15, 1972. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 72-22-02 RAZORBACK FABRICS, INC: Amdt. 39-1531 as amended Amendment 39-1541. Applies to airplanes having wings, tail, or control surfaces covered with fiberglass using the "razorback" method, certificated in all categories. This covering process has been approved by numerous Supplemental Type Certificates and FAA Forms 337 as complying with Advisory Circular 20-44, "Glass Fiber Fabric for Aircraft Covering." Compliance required within the next fifty hours' time in service after the effective date of this airworthiness directive, unless already accomplished. To determine if the fabric is attached with plastic coated glass rib stitch cord, inspect the interior of the wings, tail, or control surfaces through inspection openings or by cutting small holes in the fabric. The plastic coating on the rib stitch cord is black in color. a. If the fabric is attached with the plastic coated rib stitch cord, replace the stitching with MIL-C-5649 cord or FAA approved equivalent before fifty hours' time in service from the effective date of this Airworthiness Directive. b. If the fabric is attached with MIL-C-5649 cord, or FAA approved equivalent, no further action is required. c. All work required, including patching holes, may be accomplished in accordance with FAA Advisory Circular 43.13-1. Razorback Fabrics, Inc., Service Bulletin 1-1 dated 3/11/64 covers the same subject. (NOTE: Copies of Razorback Fabrics, Inc., Service Bulletin 1-1 may be obtained from the company at Manila, Arkansas 72442.) This supersedes Amendment 39-1531, 37 F.R. Amendment 39-1531 became effective October 16, 1972. This amendment 39-1541 becomes effective November 15, 1972. FOOTER:
Document Text
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AD Final Rules - DRS_72-22-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 72-22-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; RAZORBACK FABRICS, INC: Applies to Airplanes having Wings, Tail, or Cont...Show more Subject: Fiberglass Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 11/15/1972 Make: Razorback Fabrics, Inc. Model: Fiberglass Fabric 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: 72-22-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1541 AD NUMBER: 72-22-02 SUBJECT HEADING: Airworthiness Directives; RAZORBACK FABRICS, INC: Applies to Airplanes having Wings, Tail, or Control Surfaces Covered with Fiberglass ACTION: SUMMARY: DATES: Effective November 15, 1972. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 72-22-02 RAZORBACK FABRICS, INC: Amdt. 39-1531 as amended Amendment 39-1541. Applies to airplanes having wings, tail, or control surfaces covered with fiberglass using the "razorback" method, certificated in all categories. This covering process has been approved by numerous Supplemental Type Certificates and FAA Forms 337 as complying with Advisory Circular 20-44, "Glass Fiber Fabric for Aircraft Covering." Compliance required within the next fifty hours' time in service after the effective date of this airworthiness directive, unless already accomplished. To determine if the fabric is attached with plastic coated glass rib stitch cord, inspect the interior of the wings, tail, or control surfaces through inspection openings or by cutting small holes in the fabric. The plastic coating on the rib stitch cord is black in color. a. If the fabric is attached with the plastic coated rib stitch cord, replace the stitching with MIL-C-5649 cord or FAA approved equivalent before fifty hours' time in service from the effective date of this Airworthiness Directive. b. If the fabric is attached with MIL-C-5649 cord, or FAA approved equivalent, no further action is required. c. All work required, including patching holes, may be accomplished in accordance with FAA Advisory Circular 43.13-1. Razorback Fabrics, Inc., Service Bulletin 1-1 dated 3/11/64 covers the same subject. (NOTE: Copies of Razorback Fabrics, Inc., Service Bulletin 1-1 may be obtained from the company at Manila, Arkansas 72442.) This supersedes Amendment 39-1531, 37 F.R. Amendment 39-1531 became effective October 16, 1972. This amendment 39-1541 becomes effective November 15, 1972. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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