AD 65-21-06

AD Final Rules - DRS_65-21-06.html
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AD Number:
65-21-06
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; VICKERS Models 744, 745D, and 810 Series Airplanes
Subject:
Pyrene Fire Extinguishers
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/03/1965
Make:
Vickers-Armstrongs (Aircraft Limited)
Model:
Viscount 744 | Viscount 745D | Viscount 810
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Superseded AD: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Superseded By: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: 65-21-06
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-131

AD NUMBER:   65-21-06

SUBJECT HEADING:   Airworthiness Directives; VICKERS Models 744, 745D, and 810 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective October 3, 1965.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
65-21-06 VICKERS: Amdt. 39-131 Part 39 Federal Register September 3, 1965. Applies to Viscount Models 744, 745D, and 810 Series Airplanes That Are Equipped With Pyrene Fire Extinguishers, Type DCD 2, DCD 2-1/4, DCD 10, or DCD 11.

Compliance required at first airplane overhaul or within six months after the effective date of the AD, whichever occurs first, unless already accomplished.

To prevent further failures of Pyrene fire extinguishers of the subject models, accomplish the following:

(a) Overhaul, inspect, and test the fire extinguishing systems that are equipped with electric discharge facility, in accordance with revised requirements in British Aircraft Corporation (Weybridge Division) Preliminary Technical Leaflets No. 256 (700 Series), No. 120 (800/810 Series), (Amendment TR 25 to Viscount Maintenance and Instruction Manuals and Amendment TR3 to the Accessories Manual cover the same subject.) Subsequent overhaul of the fire extinguishing system must be carried out in accordance with these specified periods in the FAA-approved maintenance schedule.

(b) The spray ring system must be blown through with warm dry air to insure that the piping and discharge holes are free of obstruction(s) during the overhaul of the airplane at periods specified in the FAA-approved maintenance schedule.

This directive effective October 3, 1965.

FOOTER: