AD 61-26-02
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. | CL-44D4 | Airworthiness Directives; CANADAIR Model CL-44D4 Aircraft |
Unsafe Condition
A fuel leak found in the line to the upper heater could lead to fuel leakage in the tail heater compartment.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect all fuel lines and fittings in the tail heater compartment for leaks and security of attachment with full fuel pressure. Loose lines must be properly secured, and defective lines and fittings replaced prior to further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 25 hours' time in service after the effective date of this AD unless already accomplished within the last 40 hours' time in service and at intervals of 65 hours' time in service thereafter
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Affected Aircraft
Bombardier Inc. Model CL-44D4 aircraft
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Tail Heater Inspection
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_61-26-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 61-26-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CANADAIR Model CL-44D4 Aircraft Subject: Tail Heater Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/21/1961 Make: Bombardier Inc. Model: CL-44D4 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 61-26-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 61-26-02 SUBJECT HEADING: Airworthiness Directives; CANADAIR Model CL-44D4 Aircraft ACTION: SUMMARY: DATES: Effective December 21, 1961. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 61-26-02 CANADAIR: Amdt. 379 Part 507 Federal Register December 21, 1961. Applies to all CL-44D4 aircraft. Compliance required as indicated. As a result of a fuel leak found in the line to the upper heater, the following inspection must be accomplished within the next 25 hours' time in service after the effective date of this AD unless already accomplished within the last 40 hours' time in service and at intervals of 65 hours' time in service thereafter. With full fuel pressure in the tail heater fuel lines, inspect all fuel lines and fittings in the tail heater compartment for leaks and security of attachment. Loose lines shall be properly secured, and defective lines and fittings replaced prior to further flight. The special inspections required by this airworthiness directive may be discontinued after incorporation of the Canadian Department of Transport and FAA approved modification. Upon request of the operator an FAA maintenance inspector subject to prior approval of the Chief, Engineering and Manufacturing Branch, International Division, Washington 25, D.C., may adjust the repetitive inspection intervals specified in this AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the increase for such operator. This directive effective December 21, 1961. FOOTER:
Document Text
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AD Final Rules - DRS_61-26-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 61-26-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; CANADAIR Model CL-44D4 Aircraft Subject: Tail Heater Inspection Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/21/1961 Make: Bombardier Inc. Model: CL-44D4 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: 61-26-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 61-26-02 SUBJECT HEADING: Airworthiness Directives; CANADAIR Model CL-44D4 Aircraft ACTION: SUMMARY: DATES: Effective December 21, 1961. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 61-26-02 CANADAIR: Amdt. 379 Part 507 Federal Register December 21, 1961. Applies to all CL-44D4 aircraft. Compliance required as indicated. As a result of a fuel leak found in the line to the upper heater, the following inspection must be accomplished within the next 25 hours' time in service after the effective date of this AD unless already accomplished within the last 40 hours' time in service and at intervals of 65 hours' time in service thereafter. With full fuel pressure in the tail heater fuel lines, inspect all fuel lines and fittings in the tail heater compartment for leaks and security of attachment. Loose lines shall be properly secured, and defective lines and fittings replaced prior to further flight. The special inspections required by this airworthiness directive may be discontinued after incorporation of the Canadian Department of Transport and FAA approved modification. Upon request of the operator an FAA maintenance inspector subject to prior approval of the Chief, Engineering and Manufacturing Branch, International Division, Washington 25, D.C., may adjust the repetitive inspection intervals specified in this AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the increase for such operator. This directive effective December 21, 1961. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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