AD 81-04-06
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Fairchild Industries Products | Cockpit Voice Recorder | Airworthiness Directives; FAIRCHILD: Applies to Fairchild Industries Products: Cockpit Voice Recorder Model A100 Series |
| appliance | Fairchild Industries Products | Cockpit Voice Recorder | Airworthiness Directives; FAIRCHILD: Applies to Fairchild Industries Products: Cockpit Voice Recorder Model A100 Series |
Unsafe Condition
The omission of the thermal insulation assembly, P/N 9300-A18, could cause destruction of the recording tape in an aircraft accident involving fire.
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Required Actions
Inspect cockpit voice recorders in accordance with Fairchild Industrial Products Alert Field Service Bulletin No. CVR A140, paragraph 2B. Install missing thermal insulation assemblies following the specified or approved equivalent instructions. Equivalent instructions require approval from the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.
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Compliance Time
Within 180 days after the effective date of this AD
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Affected Aircraft
Fairchild Industries Products: Cockpit Voice Recorder Model A100 series, serial numbers 4733 through 5260 inclusive.
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Federal Register Abstract
Cockpit Voice Recorder
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_81-04-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-04-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; FAIRCHILD: Applies to Fairchild Industries Products: Cockpit Voice Reco...Show more Subject: Cockpit Voice Recorder Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/01/1981 Make: Fairchild Industries Products Model: Cockpit Voice Recorder Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 81-04-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4039 AD NUMBER: 81-04-06 SUBJECT HEADING: Airworthiness Directives; FAIRCHILD: Applies to Fairchild Industries Products: Cockpit Voice Recorder Model A100 Series ACTION: SUMMARY: DATES: Effective April 1, 1981. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-04-06 FAIRCHILD: Amendment 39-4039. Applies to Fairchild Industries Products: Cockpit Voice Recorder Model A100 series, having serial numbers 4733 through 5260 inclusive. To prevent the possibility of destruction of the recording tape in an aircraft accident involving fire, due to the omission of the thermal insulation assembly, P/N 9300-A18, accomplish the following: (a) Within 180 days after the effective date of this AD, unless previously accomplished, inspect the cockpit voice recorders in accordance with the accomplishment instructions of Fairchild Industrial Products Alert Field Service Bulletin No. CVR A140, dated December 10, 1979, paragraph 2B, Installation of Thermal Insulation 1 through 3. Missing insulation assemblies shall be installed in accordance with the above installation instructions, or approved equivalent instructions. (b) Equivalent installation instructions must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. (c) Compliance times may be increased by Chief, Engineering and Manufacturing Branch, FAA, Eastern Region, upon receipt of substantiating data submitted through an FAA inspector. This amendment becomes effective April 1, 1981. FOOTER:
Document Text
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AD Final Rules - DRS_81-04-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-04-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; FAIRCHILD: Applies to Fairchild Industries Products: Cockpit Voice Reco...Show more Subject: Cockpit Voice Recorder Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 04/01/1981 Make: Fairchild Industries Products Model: Cockpit Voice Recorder 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: 81-04-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4039 AD NUMBER: 81-04-06 SUBJECT HEADING: Airworthiness Directives; FAIRCHILD: Applies to Fairchild Industries Products: Cockpit Voice Recorder Model A100 Series ACTION: SUMMARY: DATES: Effective April 1, 1981. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-04-06 FAIRCHILD: Amendment 39-4039. Applies to Fairchild Industries Products: Cockpit Voice Recorder Model A100 series, having serial numbers 4733 through 5260 inclusive. To prevent the possibility of destruction of the recording tape in an aircraft accident involving fire, due to the omission of the thermal insulation assembly, P/N 9300-A18, accomplish the following: (a) Within 180 days after the effective date of this AD, unless previously accomplished, inspect the cockpit voice recorders in accordance with the accomplishment instructions of Fairchild Industrial Products Alert Field Service Bulletin No. CVR A140, dated December 10, 1979, paragraph 2B, Installation of Thermal Insulation 1 through 3. Missing insulation assemblies shall be installed in accordance with the above installation instructions, or approved equivalent instructions. (b) Equivalent installation instructions must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. (c) Compliance times may be increased by Chief, Engineering and Manufacturing Branch, FAA, Eastern Region, upon receipt of substantiating data submitted through an FAA inspector. This amendment becomes effective April 1, 1981. FOOTER:
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Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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