7 occurrences in the ASN safety database,
showing occurrence 1 - 7

date	type	registration	operator	fat.	location		pic	cat
06-AUG-1949	Bristol 170 Freighter 21	HC-SBU	Shell Ecuador	34	near Salasca Hill			A1
??-???-1948	Ford 4-AT Tri-Motor	HC-SBQ	Shell Ecuador					U1
16-JUL-1947	Ford 5-AT-C Tri-Motor	HC-SBK	Shell Ecuador					A1
15-NOV-1946	Ford 4-AT-B Tri-Motor	HC-SBD	Shell Ecuador	1	Ayuy Airstrip			A1
10-SEP-1946	Ford 5-AT Tri-Motor	HC-SBI	Shell Ecuador	0	Tiputini Air...			A1
15-MAY-1946	Budd RB-1 Conestoga	HC-SBE	Shell Ecuador		Shell Mera			A1
05-APR-1946	Ford 4-AT-D Tri-Motor	HC-SBC	Shell Ecuador	0	Ayuy Airstrip			A1