Date: 202106
Local time of day: 1201-1800
Location: ZZZ.ARTCC, US
Flight conditions: VMC
Light: Daylight
Aircraft: EMB-505 / Phenom 300
Operator: Corporate
Operating under: Part 91
Flight plan: IFR
Mission: Ferry / Re-Positioning
Flight phase: Climb
Airspace: Class A ZMA
ATC / advisory: Center ZMA
Reporter organization: Corporate
Reporter function: Pilot Flying; Captain
Reporter qualification: Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Human factors: Time Pressure; Troubleshooting; Communication Breakdown
Second reporter function: Pilot Not Flying; First Officer
Anomaly: Aircraft Equipment Problem Critical; Deviation - Altitude Excursion From Assigned Altitude; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Detector: Person Flight Crew
When detected: In-flight
Result: Air Traffic Control Provided Assistance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Overcame Equipment Problem; Flight Crew Diverted; Flight Crew Landed in Emergency Condition; General Maintenance Action; General Flight Cancelled / Delayed
Contributing factors: Aircraft
Primary problem: Aircraft

Narrative: While climbing thru FL250 we began to smell something that resembled an electrical burning type scent; then noticed some faint smoke in the flight deck and cabin area.  We immediately accomplished our memory Items for Smoke/Fire/Fumes; which included putting on our oxygen masks; and followed up with the QRH.  At this point we leveled off our climb and attempted to communicate with ATC; and changed our transponder code to 7700.  An Emergency Descent was initiated; at which point we heard ATC trying to call us.  We realized after several attempts to transmit; that ATC was not able to hear us.  We then switched to our Secondary Radio and were able to establish communications with ATC.  As we were in close proximity and the crew was familiar with the airport; we chose to divert to ZZZ.  We had no other indications of smoke or fumes after the initial scent/smoke.  We accomplished a landing on runway XX at ZZZ.  With no smoke or signs of smoke in the aircraft and Crash/Fire/Rescue reporting no signs outside the aircraft; we taxied to the FBO ramp and shutdown/inspected the aircraft.   This event was in an Embraer Phenom 300 (EMB-505).


Second narrative: While climbing thru FL250 we began to smell something that resembled an electrical burning and faint smoke in the flight deck and cabin area.  We immediately accomplished our memory Items for Smoke/Fire/Fumes; which included putting on our oxygen masks; and followed up with the QRH.  At this point we leveled off our climb and attempted to communicate with ATC; and changed our transponder code to 7700.  An Emergency Descent was initiated; at which point we heard ATC trying to call us.  We realized after several attempts to transmit; that ATC was not able to hear us.  We then switched to our secondary radio and were able to establish communications with ATC.  As we were in close proximity and the crew was familiar with the airport; we chose to divert to ZZZ.  We had no other indications of smoke or fumes after the initial scent/smoke.  We accomplished a landing on runway XX at ZZZ.  With no smoke or signs of smoke in the aircraft and Crash/Fire/Rescue reporting no signs outside the aircraft; we taxied to the FBO ramp and shutdown/inspected the aircraft. This was in an Embraer Phenom 300 (EMB-505).


Synopsis: EMB-505 flight crew reported a fume event during initial climb resulted in a diversion.