AD 58-20-02

final rule

Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft

AD Number
58-20-02
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft
aircraft de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 2A Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft
aircraft de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 5A Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft
aircraft de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 5BA Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft
aircraft de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 6A Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft
aircraft de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 6BA Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft
aircraft de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 7A Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft
aircraft de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 7AXC Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft
aircraft de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 8A Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft
aircraft de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 8AXC Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft

Unsafe Condition

The fire extinguisher system may become inoperative during an emergency wheels-up landing when the ground/flight switch is in the 'Ground' position, increasing fire risk.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Install Dove Modification 655 to provide an electrical supply from the battery side of the ground/flight switch, ensuring the fire extinguisher system remains operative even when the switch is in the 'Ground' position.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

January 1, 1959

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

de Havilland Model 104 'Dove' Series Aircraft, including D.H. 104 Dove Series 1A, 2A, 5A, and others as listed.

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Fire Extinguisher Electrical Circuit

Applicability Source Text

Show captured applicability text from the source AD
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Details
AD Number:
58-20-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft
Subject:
Fire Extinguisher Electrical Circuit
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
de Havilland Aircraft Co., Ltd., The
Model:
D.H. 104 Dove Series 1A | D.H. 104 Dove Series 2A | D.H. 104 Dove Series 5A | D.H. 104 Dove Series 5...Show more
Product Type:
Aircraft
Product Subtype:
Small 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: 58-20-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   58-20-02

SUBJECT HEADING:   Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
58-20-02 de HAVILLAND: Applies to All Model 104 "Dove" Aircraft.

Compliance required by January 1, 1959.

In an emergency such as a wheels up landing, the placing of the ground/flight switch on the "Ground" position to minimize fire risk would isolate the fire extinguisher system.

Dove Modification 655 has therefore been introduced which provides an electrical supply to the fire extinguisher circuit from the battery side of the ground/flight switch, even when the switch is in the "Ground" position, thus ensuring that the fire extinguisher system is operative at all times.

The British Air Registration Board considers this mandatory. The FAA concurs with this action and considers compliance therewith mandatory.

(de Havilland TNS CT (104) No. 153 covers the same subject.)

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_58-20-02.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
58-20-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft
Subject:
Fire Extinguisher Electrical Circuit
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
de Havilland Aircraft Co., Ltd., The
Model:
D.H. 104 Dove Series 1A | D.H. 104 Dove Series 2A | D.H. 104 Dove Series 5A | D.H. 104 Dove Series 5...Show more
Product Type:
Aircraft
Product Subtype:
Small 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: 58-20-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   58-20-02

SUBJECT HEADING:   Airworthiness Directives; de Havilland Model 104 "Dove" Series Aircraft

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
58-20-02 de HAVILLAND: Applies to All Model 104 "Dove" Aircraft.

Compliance required by January 1, 1959.

In an emergency such as a wheels up landing, the placing of the ground/flight switch on the "Ground" position to minimize fire risk would isolate the fire extinguisher system.

Dove Modification 655 has therefore been introduced which provides an electrical supply to the fire extinguisher circuit from the battery side of the ground/flight switch, even when the switch is in the "Ground" position, thus ensuring that the fire extinguisher system is operative at all times.

The British Air Registration Board considers this mandatory. The FAA concurs with this action and considers compliance therewith mandatory.

(de Havilland TNS CT (104) No. 153 covers the same subject.)

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.