B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Situational Awareness; Troubleshooting
Aircraft Equipment Problem Less Severe; Inflight Event / Encounter Wake Vortex Encounter
Flight Crew Landed As Precaution
Aircraft
Takeoff at SNA; flaps 25; 26k motors. Vibration both audible and tactile. Vibration went away once flaps and slats up. Leveled off at 15;000 feet. Speed 250. Contacted Dispatch/Maintenance. Decided to divert. I [advised ATC]; radar vectors to [Runway] 25L. We experienced some vibration at flaps 30 but when First Officer was correcting for wake induced roll; vibration was very noticeable. Uneventful landing. Left flaps at 30 so Maintenance could perform inspection.
B737 Captain reported flap problem on departure.