58-08-03: CB Fire Extinguisher System
FAA order 58-08-03 is an airworthiness directive. The FAA's subject line: CB Fire Extinguisher System. It names Air & Space America Inc 18, Douglas DC-3, Lockheed 18: about 174 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: other and general.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Air Trading Corporation; The Boeing Company; Lockheed Aircraft Corporation
- Models
- Navy PV-1, DC3-G102, DC3-G102A, DC3-G103A, DC3-G202A, DC3A-S1C3G, DC3A-S1CG, DC3A-S4C4G, DC3A-SC3G, DC3A-SCG, DC3C-R-1830-90C, DC3C-S1C3G, DC3C-S4C4G, DC3C-SC3G, DC3D-R-1830-90C, 18
- On this site
- Air & Space America Inc 18 6 registered
Douglas DC-3 155 registered
Lockheed 18 13 registered
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (1,479 characters)
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.)\n\n\tCompliance required by October 1, 1958.\n\n\tDue 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.\n\n\t1.\tThe 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.\n\n\t2.\tThe 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.\n\n\t3.\tThe installed Bromochloromethane (CB) system must be shown to comply with the requirements of CAR 4b.371(b) and 4b.484(b)(2).\n\n\tNOTE: 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.
Related safety bulletins advice on the same designs, not orders
2014-11-24NM-15-03 · Flight Controls
2008-06-12NM-08-28 · Landing Gear: DC-3 Tail Wheel Fork Check
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 30, 2026. Connections as data: /graph/directive/58-08-03.json · aircraft systems.