HP 917895-001 service access door is a replacement bottom cover for the HP EliteBook x360 1030 G2. It closes the underside of the laptop enclosure and is identified in HP’s parts guide as the bottom cover.
The assembly includes two rubber feet, a rear rubber foot strip, speaker grilles, a vent grille and magnets. These are listed as components of the cover assembly.
HP’s service procedure removes the cover after taking out five screws and separating it from the keyboard/top cover. Installation follows the reverse procedure.