TM 10-3930-669-20 VISUAL INSPECTION (1) Open right-hand engine access cover (TM 10-3930-669-10). (2) Inspect   hydraulic   oil   reservoir   for correct level (TM 10-3930-669-10). (a) If   hydraulic   oil   level   is   low, service   reservoir   with   clean hydraulic    oil    (TM    10-3930- 669-10). (b) If  hydraulic  oil  is  not  low,  oil level is OK. (3) Close     right-hand     engine     access cover. 2-469