TM 10-3930-669-20 VERIFY REPAIR (1) Start engine (TM 10-3930-669-10). (2) Listen to engine operation. (a) If engine does not run smoothly, fault not corrected.  Perform Step (3) below.  Repeat procedure and notify Supervisor. (b) If engine runs smoothly, fault corrected. (3) Shut down engine. 2-99