PC-12
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Diverted
Aircraft
The surface winds were 310 at 10 kts gusting 15 kts and takeoff was made with short field procedures using 30 degrees of flaps.  After takeoff; flap retraction to 15 degrees and gear retraction were normal.  However; when retracting the flaps to the full up position; as the flaps passed through about 8 degrees; the 'Flap' and 'Pusher' Caution light illuminated and the aural Flap Asymmetry call-out sounded.  The aircraft was in wings level; coordinated flight when the caution occurred. We continued the climb and maintained speed below the 15 degree flap limit speed.  I passed the QRH to the First Officer and we ran the checklist for Flap and Pusher Caution lights.  We analyzed our options.  We considered a return; but elected not to return as the runway is relatively short and there would be a strong crosswind.  We analyzed the landing distance for ZZZ and determined that the computed landing distance would be within 1000 feet of the actual runway length.  Thus; we elected to land at ZZZ1; as the runway was longer and the surface wind was more favorably aligned.  The First Officer coordinated the diversion with Approach and we proceeded to ZZZ1.We flew a visual approach with a slightly longer final to allow time to stabilize the aircraft on-speed.  During final; the FO performed excellent 'pilot monitoring' duties and ensured the aircraft remained on proper glideslope and airspeed.  We flew with the AOA (Angle of Attack) indexer on the fast diamond in accordance with the QRH; which was about 120 KIAS.  Touchdown was made in the first 1000 feet of the runway.
PC-12 Captain reported a flap asymmetry event occurred on climbout. They elected to divert to a field with a longer runway and less crosswind.