Controlled Flight Into Terrain (CFIT)
9,883 occurrences · 5,268 fatal · 33,948 fatalities · 1948–2026
What it is
Controlled flight into terrain (CFIT) describes an accident in which an airworthy aircraft, under the control of its crew, is unintentionally flown into the ground, a mountainside, water, or an obstacle. The defining feature is that nothing was mechanically wrong: the crew was flying the aircraft normally but did not realize where it actually was relative to the terrain until impact was unavoidable.
Why it happens
Most CFIT accidents begin with a loss of situational awareness in conditions where the crew cannot see the terrain: darkness, cloud, fog, or heavy precipitation. Contributing patterns repeat across decades of investigations — descending below a published minimum altitude, misreading an approach chart, confusing navigation fixes, or continuing a visual approach into deteriorating weather.
How the industry defends against it
The single most effective defense has been the terrain awareness and warning system (TAWS, an evolution of the earlier ground proximity warning system), which compares the aircraft position against a terrain database and gives the crew aural and visual warnings well before impact. Since regulators mandated TAWS for airliners and many turbine aircraft, CFIT accidents in commercial aviation have fallen sharply. Stabilized-approach criteria, minimum safe altitude monitoring by air traffic control, and constant-angle non-precision approaches address the remaining risk.
What this means for passengers
For passengers on scheduled commercial flights, CFIT is a well-understood and heavily defended risk: modern airliners carry terrain warning systems as standard equipment, and crews train for immediate escape maneuvers when a warning sounds. The accidents in this database skew toward earlier decades and toward smaller general-aviation aircraft, which historically had no terrain warning equipment on board.
Aircraft families
- Lockheed C-130 Hercules33
- Boeing 72726
- Boeing 73718
- Boeing 70717
- McDonnell Douglas DC-98
- Boeing KC-135 Stratotanker5
- Boeing 7475
- ATR 42/725
- Boeing B-52 Stratofortress4
- Airbus A3204
Countries
- United States5,613
- France292
- Brazil290
- Canada277
- Switzerland276
- Chile137
- South Africa130
- Germany122
- United Kingdom109
- Russia82
Notable investigated accidents
- 2003-02-19 — Islamic Revolutionary Guard Corps (275 fatalities)
- 1979-11-28 — Air New Zealand (257 fatalities)
- 1997-08-06 (228 fatalities)
- 1974-12-04 — DC-8, Martinair (191 fatalities)
- 1975-08-03 — Royal Jordanian Airlines - ALIA (188 fatalities)
- 1978-11-15 — Loftleidir Icelandic Airlines (183 fatalities)
- 1983-11-27 — Avianca (181 fatalities)
- 1981-12-01 — Inex-Adria Airways (180 fatalities)
- 1989-06-07 — Surinam Airways - Surinaamse Luchtvaart Maatschappij (SLM) (176 fatalities)
- 1992-09-28 — Pakistan International Airlines - PIA (167 fatalities)
- 1989-02-08 (157 fatalities)
- 1976-09-19 — Turkish Airlines - THY Türk Hava Yollari (154 fatalities)
Counts are derived from official investigation records; one accident may involve several causes, and older or foreign records can be incomplete. This page explains patterns — it is not a safety ranking.