AD 58-08-03

AD Final Rules - DRS_58-08-03.html
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AD Number:
58-08-03
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; DOUGLAS All DC3 and LOCKHEED 18, PV-1 Aircraft
Subject:
CB Fire Extinguisher System
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
Make:
Air Trading Corporation | The Boeing Company | Lockheed Aircraft Corporation
Model:
Navy PV-1 | DC3-G102 | DC3-G102A | DC3-G103A | DC3-G202A | DC3A-S1C3G | DC3A-S1CG | DC3A-S4C4G | DC3...Show more
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Superseded AD: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Superseded By: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: 58-08-03
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:  

AD NUMBER:   58-08-03

SUBJECT HEADING:   Airworthiness Directives; DOUGLAS All DC3 and LOCKHEED 18, PV-1 Aircraft

ACTION:  

SUMMARY:  

DATES:  

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
58-08-03 DOUGLAS AND LOCKHEED: Applies to All Douglas DC3, Lockheed 18, and PV-1 Aircraft Having Bromochloromethane (CB) Fire Extinguisher Systems. (NOTE: Not Applicable to Systems Which Provide Leakproof Enclosures for the Fire Extinguishing Agent Containers.)

Compliance required by October 1, 1958.

Due to the toxicity hazard for crew and passengers existing in these airplanes having Bromochloromethane (CB) fire extinguishing system installed, particularly when the fire extinguishing agent containers are installed in the fuselage, one of the following must be accomplished.

1. The Bromochloromethane (CB) fire extinguisher agent must be replaced with a quantity of Freon 13B1 (Bromo-tri or CF3Br, equal to 0.8 times the installed weight of Bromochloromethane (CB) and a suitable breathing oxygen supply must be provided for the crew as specified in CAR 4b.651.

2. The Bromochloromethane (CB) fire extinguisher agent must be replaced with a quantity of carbon dioxide (CO2) equal to 1.25 times the installed quantity of Bromochloromethane (CB) and a suitable breathing oxygen supply must be provided for the crew as specified in CAR 4b.651.

3. The installed Bromochloromethane (CB) system must be shown to comply with the requirements of CAR 4b.371(b) and 4b.484(b)(2).

NOTE: This may be accomplished by enclosing the containers with a similar or equivalent system to that shown on AiResearch Drawings C-4900-77B sheets 1 to 3 inclusive.

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