Outline.19 is a tiny fragment identified by Jürgen Lorenz in October 2025. Its preserved portions partially describe DAY 5 in Arinna.

The tablet has not been edited previously.

Outline.19 would form a plausible join with Outline.1 (KUB 9.16 i 17–20), were it not for the markedly different handwriting. Even the few signs preserved in Outline.19 seem sufficient to identify markedly different forms of ID and KÁN from those found in Outline.1