MICROBIAL ACTIVITY IN AIR FORCE JET FUEL SYSTEMS
Abstract
Malfunctions and changes occurring in JP-4 fuel systems have been attributed to the presence of microorganisms. The known capability of microbial entities to utilize hydrocarbon products as a carbon source has been considered as a priori evidence of a direct cause-effect relationship in the deterioration of jet fuel systems. The direct implication of microbes in the deterioration of Air Force jet fuel systems has not been proved unequivocally. The U.S. Air Force, as well as the Navy and Army, have instituted research programs to determine the specific changes caused by bacterial and fungal growth in JP-4 and the contributory factors which promote or retard their activities. The presence of contaminating microbes was shown to occur only in association with free water. Microbial corrosion of various aluminum alloys has been demonstrated in the laboratory, but poor reproducibility attests to the lack of understanding of this phenomenon. The efficacy of the anti-icing additive, ethylene glycol monomethyl ether (EGME), as a microbial inhibitor has been well documented. Although a low level of viable microorganisms continues to be observed in Air Force fuel systems, the application of good housekeeping and the effect of EGME appear to have controlled their activity.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1965
- Accession Number
- AD0616648
Entities
People
- Lawrence N. Killian
- Sheldon A. London
- Viola H. Finefrock