TM 10-3930-669-20 VISUAL INSPECTION (1) Position cab for service (Para 15-2). (2) Inspect   fuel   lines   and   fittings   for   leakage and damage. (a) If fittings are leaking, tighten or replace fuel lines (Para 4-5). (b) If fuel lines are damaged, replace fuel lines. (c) If fuel lines and fittings are not leaking or damaged, fuel lines and fittings are OK. 2-105