Medium Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine; Other ATC Specialist
Flight Crew Last 90 Days 340; Flight Crew Total 14230; Flight Crew Type 550
Distraction; Troubleshooting; Workload
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance; Ground Event / Encounter Weather / Turbulence
Air Traffic Control Issued New Clearance; Flight Crew Overcame Equipment Problem; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Diverted
Aircraft; Weather
ZZZ had a contaminated runway with compacted snow. DAAP (Destination Airport Analysis Program) procedure applied to allow 80% runway usage. Weather at ZZZ deteriorated to mountains minimums (1 mile visibility). While conducting approach flaps 5 degrees were selected. At this point the flaps did not deploy and we received a flap fail indication while descending past the IAF on the approach. The checklist was ran which called for reset and another flap selection attempt which also failed. At this time we conducted a missed approach and diverted to ZZZ1 for a longer uncontaminated runway and better weather. Once over ZZZ1 we decided to try slats only which did work assisting in a slightly slower rev speed. A visual approach backed by ILS RWY XX was performed where we stopped using only 60% of runway. After speaking with Maintenance we were told to try resetting the flap circuit breaker and try flaps again. Again we only had slat extension with a flap failure.
Air Taxi Captain reported a flap failure on approach to an airport with a contaminated runway caused them to divert to another airport with more favorable runway conditions.