TCAS saved the day - Cuba - Curt Lewis

Airprox near Cuba: Falcon 900EX climbs to within 400 ft of Boeing 737-800

Date:	28-DEC-2018
Time:	20:36 LT
Type:	Boeing 737-86J (WL)
Owner/operator:	Sunwing Airlines
Registration:	C-FWGH
C/n / msn:	37752/3825
Fatalities:	Fatalities: 0 / Occupants:
Other fatalities:	0
Aircraft damage:	None
Location:	18 nm NNE of Cayo Largo/Vilo Acuña Intl (MUCL) -    Cuba
Phase:	En route
Nature:	International Scheduled Passenger
Departure airport:	Río Hato/Scarlett Martínez Intl (MPSM)
Destination airport:	Toronto-Pearson International Airport, ON (YYZ/CYYZ)

Narrative:
A Boeing 737-800 aircraft operated by Sunwing Airlines was conducting flight WG783 from Río Hato/Scarlett Martínez Intl (MPSM), Panamá to Toronto/Lester B. Pearson Intl (CYYZ), Canada. During cruise flight at FL360 in the vicinity of Cayo Largo/Vilo Acuña Intl (MUCL), Cuba, the
flight crew received a TCAS Traffic Advisory (TA), and an aircraft was seen climbing towards them. Subsequently, a TCAS Resolution Advisory (RA) - CLIMB sounded seconds later, which was immediately complied with by the flight crew up to FL366, until clear of conflict. WG783 then continued to destination uneventfully. The conflicting traffic was observed to be as close as 400 feet below on TCAS, and had been cleared
to FL350 by Havana Center; however, it continued the climb through FL350. ATC reported that the aircraft involved was a Falcon 900EX, registration YV2486.