AD 77-10-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sabreliner Corporation | NA-265-80 | Airworthiness Directives; ROCKWELL INTERNATIONAL Model NA-265-80 Airplanes |
Unsafe Condition
Failure of the Instrument Inverter power input cable or thermal degradation of Relay K1066 (Cutler-Hammer P/N 6141H126) could result in loss of electrical protection and inadequate thermal isolation, leading to potential system failure.
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Required Actions
Accomplish modification specified in Rockwell International Sabreliner Service Bulletin No. 28, dated April 8, 1977, or later FAA approved revisions. Equivalent procedures may be approved by the Chief, Aircraft Engineering Division, FAA Western Region, upon submission of adequate substantiation data. Special flight permits may be issued under FAR's 21.197 and 21.199 to operate to a base for modification.
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Compliance Time
on or before June 7, 1977, unless already accomplished
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Affected Aircraft
ROCKWELL INTERNATIONAL Model NA-265-80 airplanes with serial numbers 380-1 through 380-4, 380-6 through 380-9, 380-11 through 380-13, 380-15, 380-17, 380-19, 380-21, 380-23, 380-25, 380-27, 380-30, 380-32, 380-34, 380-36 and 380-38 through 380-54, equipped with Relay K1066 (Cutler-Hammer P/N 6141H126)
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Federal Register Abstract
Electrical System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_77-10-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-10-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; ROCKWELL INTERNATIONAL Model NA-265-80 Airplanes Subject: Electrical System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/23/1977 Make: Sabreliner Corporation Model: NA-265-80 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 77-10-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2902 AD NUMBER: 77-10-10 SUBJECT HEADING: Airworthiness Directives; ROCKWELL INTERNATIONAL Model NA-265-80 Airplanes ACTION: SUMMARY: DATES: Effective May 23, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-10-10 ROCKWELL INTERNATIONAL: Amendment 39-2902. Applies to NA- 265-80 airplanes, serial numbers 380-1 through 380-4, 380-6 through 380-9, 380-11 through 380-13, 380-15, 380-17, 380-19, 380-21, 380-23, 380-25, 380-27, 380-30, 380-32, 380-34, 380- 36 and 380-38 through 380-54, with Relay K1066 installed (Cutler-Hammer P/N 6141H126), certificated in all categories. Compliance required on or before June 7, 1977, unless already accomplished. To provide electrical protection for the Instrument Inverter power input cable, and improve thermal isolation of the Instrument Inverter Remote Reset Circuit Breaker Relay (K1066), accomplish the following: (a) Modification specified in Rockwell International Sabreliner Service Bulletin No. 28, dated April 8, 1977, or later FAA approved revisions. (b) Equivalent procedures may be approved by the Chief, Aircraft Engineering Division, FAA Western Region, upon submission of adequate substantiation data. (c) Special flight permits may be issued in accordance with FAR's 21.197 and 21.199 to operate airplanes to a base for accomplishment of the modification required by this AD. This amendment becomes effective May 23, 1977. FOOTER:
Document Text
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AD Final Rules - DRS_77-10-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-10-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; ROCKWELL INTERNATIONAL Model NA-265-80 Airplanes Subject: Electrical System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 05/23/1977 Make: Sabreliner Corporation Model: NA-265-80 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 77-10-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2902 AD NUMBER: 77-10-10 SUBJECT HEADING: Airworthiness Directives; ROCKWELL INTERNATIONAL Model NA-265-80 Airplanes ACTION: SUMMARY: DATES: Effective May 23, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-10-10 ROCKWELL INTERNATIONAL: Amendment 39-2902. Applies to NA- 265-80 airplanes, serial numbers 380-1 through 380-4, 380-6 through 380-9, 380-11 through 380-13, 380-15, 380-17, 380-19, 380-21, 380-23, 380-25, 380-27, 380-30, 380-32, 380-34, 380- 36 and 380-38 through 380-54, with Relay K1066 installed (Cutler-Hammer P/N 6141H126), certificated in all categories. Compliance required on or before June 7, 1977, unless already accomplished. To provide electrical protection for the Instrument Inverter power input cable, and improve thermal isolation of the Instrument Inverter Remote Reset Circuit Breaker Relay (K1066), accomplish the following: (a) Modification specified in Rockwell International Sabreliner Service Bulletin No. 28, dated April 8, 1977, or later FAA approved revisions. (b) Equivalent procedures may be approved by the Chief, Aircraft Engineering Division, FAA Western Region, upon submission of adequate substantiation data. (c) Special flight permits may be issued in accordance with FAR's 21.197 and 21.199 to operate airplanes to a base for accomplishment of the modification required by this AD. This amendment becomes effective May 23, 1977. FOOTER:
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