This data set contains Raw data taken by the New Horizons Linear Etalon Imaging Spectral Array instrument during the Pluto encounter mission phase. This is VERSION 3.0 of this data set. This data set contains LEISA observations taken during the the Approach (Jan-Jul, 2015), Encounter, Departure, and Transition mission sub-phases, including flyby observations taken on 14 July, 2015, and departure and calibration data through late October, 2016. This data set completes the Pluto mission phase deliveries for LEISA. This is version 3.0 of this dataset. Changes since version 2.0 include the addition of data downlinked between the end of January, 2016 and the end of October, 2016, completing the delivery of all data covering the Pluto Encounter and subsequent Calibration Campaign. It includes multi- map observations from the Approach phase, observations of the moons, and hi-res departure observations. It also includes functional tests from the Calibration Campaign including scans across the detector of Arcturus, and a second test of the Solar Illumination Assembly. Updates were made to the calibration files, documentation, and catalog files. The data were re-run through the pipeline, which changes the FITS headers of the raw files, but not the FITS data. The exceptions to that are products for which only sub-frame windows were downlinked in previous versions of this data set: those products have been re-downlinked either in full, or all regions outside the previously downloaded windows were downloaded and merged to form full-frame products. In so doing, some LEISA products have more frames downloaded, resulting in a change in the BANDS keyword value in PDS labels. Finally, the updated calibration files cause changes to all of the calibrated data.