diff --git a/maintenance.md b/maintenance.md
index 544a7b1..5dfced4 100644
--- a/maintenance.md
+++ b/maintenance.md
@@ -31,3 +31,4 @@ Newest entries at the bottom.
 - 2026-09-20: Oxygen scrubbers replaced.
 - 2026-09-21: Solar panels cleaned.
 - 2026-09-21: Gyroscopes recalibrated.
+- 2026-09-22: Fuel lines checked for leaks.