C421 occurrences (301–350 of 618)
- 1990-09-25 — Texfi Industries — N316MH (3 fatal)
- 1990-09-22 — N41JT (incident)
- 1990-08-09 — N76SH (incident)
- 1990-08-08 — Nelson, Walter — N469RJ (incident)
- 1990-07-18 — Pacifica Corporation — N6089X (incident)
- 1990-06-13 — Colombian National Army - Ejército Nacional de Colombia — EJC-102 (6 fatal)
- 1990-05-26 — HB-LKC (incident)
- 1990-04-01 — Rocky Mountain Intensive — N2655V (2 fatal)
- 1989-12-27 — Eagle Aviation - Malta — 9H-ABN (hull loss)
- 1989-11-28 — Mid Eastern Airways, Inc. — N3359Q (incident)
- 1989-08-06 — Daniel C.hostetter — N211PB (incident)
- 1989-07-03 — N149RT (incident)
- 1989-06-17 — William E. Hamilton — N421S (incident)
- 1989-04-23 — N247CB (incident)
- 1989-04-22 — Private Germany — D-ICAD (7 fatal)
- 1989-03-31 — Private United States of America — N4470L (1 fatal)
- 1989-03-28 — Camel Leasing Company — N4595L (1 fatal)
- 1989-03-03 — C. M. Oldenburg — N5999M (incident)
- 1988-11-16 — Arjay Medical — N222BL (2 fatal)
- 1988-11-01 — Hubert G. Toll — N3385Q (1 fatal)
- 1988-09-20 — Oltersdorf, Walter — N44HV (incident)
- 1988-09-08 — Aero Commercial Edsan (10 fatal)
- 1988-08-09 — Lag Air — N98427 (hull loss)
- 1988-07-14 — Vadala Management Corporation — N825DW (1 fatal)
- 1988-06-09 — David M. Bailie — N700SC (1 fatal)
- 1988-05-28 — Brooks Products — N98683 (4 fatal)
- 1988-04-04 — Private United States of America — N42A (5 fatal)
- 1988-03-26 — CGVDG (incident)
- 1988-03-25 — Starcraft Aviation — C-GVDG (2 fatal)
- 1988-02-03 — Minuteman Aviation — N517S (3 fatal)
- 1987-12-22 — F-GAPS (incident)
- 1987-12-10 — Tennessee Wings — N777RC (2 fatal)
- 1987-12-07 — Businessair — HB-LMI (2 fatal)
- 1987-10-20 — Hastingwood Hotels — G-HAST (6 fatal)
- 1987-10-07 — Sager,william F. — N8043Q (5 fatal)
- 1987-09-02 — Thomas H. Koch — N421DT (1 fatal)
- 1987-08-16 — OPS Leasing Company — N26596 (incident)
- 1987-07-24 — Hayden W. Head — N448 (1 fatal)
- 1987-07-22 — Donald A. Henke — N9764J (incident)
- 1987-06-28 — Hugo Schoellkopf — N26553 (4 fatal)
- 1987-06-03 — O.c.king — N137JR (incident)
- 1987-01-11 — Kitaro Takahashi Sanko Kensetsu — JA5273 (3 fatal)
- 1986-11-06 — N37359 (incident)
- 1986-11-06 — Lynch Flying Service — N421AR (1 fatal)
- 1986-10-17 — N49D (incident)
- 1986-08-25 — N5299J (incident)
- 1986-08-06 — Telesite Corp. — N98998 (1 fatal)
- 1986-07-29 — Dansk Totalenterprise — OY-BUS (5 fatal)
- 1986-07-19 — David D. Weaver — N6VR (4 fatal)
- 1986-05-15 — Turbine Eagle Charters — N21WL (incident)