  The X-ray nova GRS1739-278 flared up near the Galactic center in the spring
of 1996. Here we report on the discovery of a ~5-Hz quasi-periodic oscillations
(QPO) in RXTE/PCA observations of GRS1739-278. The QPO were only present when
the source was in its very high state, and disappeared later, when it made a
transition down into the high state. We present the energy spectra of this
black hole candidate measured in both high and very high states, and discuss
the similarities between this system and other X-ray transients.
