  We study the |Delta I|=3/2 amplitudes of hyperon non-leptonic decays of the
form B->B'+pi in the context of chiral perturbation theory. The lowest-order
predictions are determined in terms of only one unknown parameter and are
consistent within errors with current data. We investigate the theoretical
uncertainty of these predictions by calculating the leading non-analytic
corrections. We also present an estimate for the size of the S-wave Lambda and
Cascade decays which vanish at leading order. We find that the corrections to
the lowest-order predictions are within the expectations of naive power
counting and, therefore, that this picture can be tested more accurately with
improved measurements.
