Encyclopedia Astronautica
1967.03.13 - The report of the Apollo 204 Review Board's In-flight Fire Emergency Provisions Review Panel (No


The report of the Apollo 204 Review Board's In-flight Fire Emergency Provisions Review Panel (No. 20) listed seven findings and accompanying determinations.

The panel had been charged with reviewing the adequacy of planned inflight fire emergency procedures and other provisions, as well as determining that emergency procedures existed for all appropriate activities. Among findings and determinations were:

- Finding - An inflight fire procedure was published and available to the Apollo 204 crew. The procedure was analyzed with reference to the Apollo 204 CM 012 configuration.
- Determination - Existing inflight fire procedures were deficient in the following areas:

- Turning off the cabin fans should be the first item of the procedural check list. This might help prevent the spread of fire by minimizing cabin air currents.
- The procedure should have specified the length of time to keep the cabin depressurized to ensure the fire had been extinguished and that all materials had cooled to below their ignition temperature.

- Finding - The command module depressurization time to drop from 3.5 to 0.4 newtons per square centimeter (from 5 to 0.5 pounds per square inch) could vary from 1 minute 45 seconds to 3 minutes 20 seconds, according to the flight-phase ambient temperature.
- Determination - The depressurization time was too slow to combat a cabin fire effectively

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