TWA Flight 840 (1986)
Trans World Airlines Boeing 727-231 · Bombing
From Los Angeles International Airport (LAX) to Cairo International Airport (CAI)
Event
- NTSB case
- DCA86RA023
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Unknown · led by another country; figures from NTSB notifications
- Event fatalities
- 4 · all aircraft and ground
- Ground fatalities
- Unknown
- Occupants
- 122
- Survivors
- 118
- InjuriesFatal: death within 30 days. Serious: over 48 hours in hospital within a week, most broken bones, severe bleeding, nerve or organ damage, or serious burns. Minor: anything less. Glossary
- 7
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- Airline
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Not recorded
Boeing 727-231
- Aircraft type
- Boeing 727
- Category
- Airplane · from aircraft type
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N54340
- Operator
- Trans World Airlines
- Onboard fatalities
- 4
- Route
- From Los Angeles International Airport (LAX)To Cairo International Airport (CAI)
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 121: Air Carrier
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Not recorded
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Not recorded
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Not recorded
Cause areas
No findings designated as a cause are recorded in the NTSB data yet.
Approximate · Estimated position: Argos, Peloponnese, the place the Wikipedia article names. Not the accident site.
From the Wikipedia article
Trans World Airlines Flight 840 was a regularly scheduled international flight from Los Angeles to Cairo via New York City, Rome, and Athens on April 2, 1986. About 20 minutes before landing in Athens, a bomb was detonated on the aircraft while it was over Argos, Greece, blasting a hole in the plane's starboard side. Four passengers died after being blown out, while another seven were injured by flying shrapnel and debris. The dead were identified as Alberto Ospina, a Colombian-born American from Stratford, Conn.; Demetra Stylian, 52; her daughter, Maria Klug, 25, and her granddaughter, Demetra, 18 months old, all from Annapolis, Md. The aircraft then made a successful emergency landing with no further loss of life.
Flight
The flight originated in Los Angeles on a Boeing 747 and transferred to a Boeing 727 in Rome for the remainder of the flight. After taking off from Rome, Italy, the flight remained uneventful until around 20 minutes before landing at Athens, when the aircraft was at around 11,000 ft. A bomb hidden underneath seat 10F during an earlier leg of the flight detonated, blasting a hole in the starboard side of the fuselage in front of the wing.
Four American passengers, including an eight-month-old infant, were ejected through the hole to their deaths below. The victims were identified as a Colombian-American man; and a woman, her daughter, and her infant granddaughter. Seven others on the aircraft were injured by shrapnel as the cabin suffered a rapid decompression. However, as the aircraft was in the middle of its approach to Athens, the explosion was not as catastrophic as it would have been at a higher altitude. The remaining 110 passengers survived the incident as pilot Richard "Pete" Petersen made an emergency landing.
Investigation and cause
Investigation
Investigators concluded that the bomb contained one pound of plastic explosive. As the bomb was placed on the floor of the cabin, the explosion tore a hole downward, where the fuselage absorbed the most damage. It is suspected it had been placed beneath the seat on a previous journey by a Lebanese woman (later arrested, never convicted) who worked for the Abu Nidal Organisation, which was dedicated to the destruction of the state of Israel. They had previously hijacked and bombed several other aircraft, as well as committing various terrorist attacks in parts of the Middle East.
Text from the Wikipedia article “TWA Flight 840 (1986)” (revision 1339300958, retrieved 2026-09-18) by its authors, under CC BY-SA 4.0. Extracted as plain text: references, tables, images and some sections are left out. Read the article
Sources
Wikipedia article: TWA Flight 840 (1986)
- Article
- TWA Flight 840 (1986)
- Revision
- 1339300958 · 2026-02-19 · retrieved 2026-09-18
- Wikidata
- Q7672524
- Licence
- Text CC BY-SA 4.0, by the article's authors; Wikidata CC0; town positions GeoNames (CC BY 4.0)
NTSB record DCA86RA023
- Event ID
- 20001213X33259
- Case number
- DCA86RA023
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Where each value comes from
- Record
- Wikipedia article "TWA Flight 840 (1986)" (page 6903189, revision 1339300958); merged with NTSB case DCA86RA023 (events / aircraft)
- Date
- Wikipedia infobox: date
- Place and country
- Wikipedia infobox: site
- Map position
- Wikipedia: place the Wikipedia infobox site links (Wikidata coordinates)
- Aircraft, operator and route
- Wikipedia infobox: aircraft type, registration, operator, origin and destination; route airports from the linked airport articles' Wikidata codes (OurAirports); gaps and aircraft details from NTSB record DCA86RA023
- Operation
- flight number in the article title
- Fatalities
- Wikipedia: Wikipedia infobox: aircraft fatalities
- Ground fatalities
- Wikipedia: not stated in the Wikipedia infobox
- Summary
- Wikipedia infobox: summary
Source notes (2)
- One occurrence in two sources, merged: the Wikipedia article "TWA Flight 840 (1986)" and NTSB case DCA86RA023, matched by the same aircraft registration and date. For this event outside the United States Wikipedia's values are used where the two differ; each value names its source.
- No bulk values were replaced by the NTSB case API.