Mid-air collision near the Dümmer
civilian Scheibe SF-25C Falke and Luftwaffe F-4F Phantom · The mid-air collision near the Dümmer occurred on 16 May 1976 at 15:12 near the Dümmer lake in Lower Saxony
Event
- 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
- Event fatalities
- 2 · all aircraft and ground
- Ground fatalities
- Unknown
- Occupants
- Unknown
- Survivors
- 0
- 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
- Unknown
- 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
- Military
Aircraft 1 · Scheibe SF-25C Falke
- Aircraft type
- Scheibe SF-25
- 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
- D-KMJD
- Operator
- civilian
- Onboard fatalities
- Unknown
- Route
- From EDWR (Borkum)To EDFS (Schweinfurt-Süd)
Aircraft 2 · F-4F Phantom
- Aircraft type
- F 4F PHANTOM
- 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
- 37+59
- Operator
- Luftwaffe
- Onboard fatalities
- Unknown
- Occupants
- Not stated
- Survivors
- 2
- 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
- Not stated
- Route
- From EDNT (Wittmundhafen)To EDNT (Wittmundhafen)
Cause areas
- Personnel issues › Psychological
From the investigation findings the Wikipedia article reports, sorted into the NTSB's cause areas with AI assistance.
Not plotted · Not plotted: the Wikipedia article gives no coordinates, and its site names no town or airport that matches exactly.
From the Wikipedia article
The mid-air collision near the Dümmer occurred on 16 May 1976 at 15:12 near the Dümmer lake in Lower Saxony. Tactical number 3 (37+59) of a formation of four F-4F Phantoms of Jagdgeschwader 71 "Richthofen" collided with a Scheibe SF-25C Falke motor glider (D-KMJD). Both aircraft were destroyed. Both pilots of the motor glider were fatally injured in the collision; the pilot and weapon systems officer of the Phantom escaped using their ejection seats.
Accident sequence
The motor glider passed Lembruch on the eastern edge of the Dümmer on a true course of 137° at a flight altitude of 3500 feet MSL. At the same time, the four Phantom fighter aircraft were also approaching from the north at 3500 feet MSL. For them, the northern edge of the Dümmer was the third turning point on the route to Celle. On a magnetic map course of 149° towards it, they crossed the flight path of the motor glider about 10 km behind it, from left to right. However, the light aircraft was neither detected by the Phantoms' on-board radars nor seen by their crews. Shortly before the turning point, the formation initiated a left turn onto the new heading of 057° by slowly rolling. During the turn the entire formation assumed a bank angle of 30° to the horizon. Shortly before reaching the new heading, they slowly rolled out. The motor glider was now directly in front of the formation at the same altitude. While rolling out, the weapon systems officer of number 3 saw an object at short distance in front of the Phantom which he took to be a glider. He warned the pilot, but by then it was already too late for an effective evasive manoeuvre, especially given the narrow room for manoeuvre within a formation. The Phantom struck the right side of the motor glider at a high closing speed. As the subsequent accident investigation determined, its pilots had had no chance to see the approaching fighter aircraft in time. On impact the motor glider was almost completely destroyed; only the outer half of the left wing remained as a larger piece of wreckage. Both motor glider pilots were killed instantly.
The hot engine block of the Falke tore open the left wing tank of the Phantom. Escaping fuel ignited immediately and created a fireball. The Phantom lost parts of its left wing and went out of control. The crew left the aircraft using their ejection seats. The wreckage of both aircraft fell close together about 3 kilometres north of the village of Brockum into the Quernheimer Bruch. The ground was contaminated by the Phantom's fuels and fluids. The pilot drifted with his parachute towards the burning impact site of the aircraft and had to slip away from it. He was slightly injured on landing. The weapon systems officer landed somewhat further away and was uninjured. The rest of the formation flew back to its home base.
Investigation and cause
Reactions, investigation of the cause and consequences
This accident triggered discussions about military flight operations in general and at weekends in particular. The Verband Deutscher Flugleiter, the association representing civilian air traffic controllers, commented that such an accident had been foreseeable due to the conditions in German airspace. It was also conceivable in the future. The accident was also raised in the German Bundestag.
After an intensive investigation, the investigator at the Luftfahrt-Bundesamt determined as the probable cause of the accident that the pilots did not recognise the respective other aircraft in time. The principle of "see and be seen" applicable in visual flight had, in the present case, been unable to prevent the accident owing to design-related visibility conditions, high closing speed, and the physiological and psychological limits of human performance.
As measures based on the findings from this accident, regulations for military flight operations were amended and civil and military regulations were harmonised. Flights by military combat aircraft to air shows or the like, especially at weekends, are now conducted under instrument flight rules and above flight level 100.
The demand to apply the maximum speed of 250 knots indicated airspeed for flights under visual flight rules below flight level 100 to jet-powered combat aircraft as well was not implemented, since these aircraft would then no longer be sufficiently manoeuvrable. International regulations permit this exception.
Translated into English with AI assistance from the German Wikipedia article “Flugzeugkollision beim Dümmer” (revision 269735532, retrieved 2026-09-19) by its authors, under CC BY-SA 4.0. Extracted as plain text: references, tables, images and some sections are left out; the translation may contain errors, and long articles were cut to their first 700 words. Read the article
Sources
German Wikipedia article: Flugzeugkollision beim Dümmer
- Translation
- Into English with AI assistance; names of linked operators and aircraft types from Wikidata. It may contain errors.
- Revision
- 269735532 · 2026-08-17 · retrieved 2026-09-19
- Wikidata
- Q122926668
- Licence
- Text CC BY-SA 4.0, by the article's authors; Wikidata CC0; town positions GeoNames (CC BY 4.0)
Where each value comes from
- Record
- de Wikipedia article "Flugzeugkollision beim Dümmer" (page 12836684, revision 269735532), translated into English with AI assistance
- Date
- Wikipedia infobox: date
- Place and country
- Wikipedia infobox: site
- Map position
- none
- Aircraft, operator and route
- Wikipedia infobox: aircraft type, registration, operator, origin and destination; route airports from the linked airport articles' Wikidata codes (OurAirports)
- Operation
- operator named as an armed force or military unit in the infobox
- Fatalities
- Wikipedia infobox: total_fatalities
- Ground fatalities
- not stated in the Wikipedia infobox
- Summary
- Wikipedia article lead
Source notes (1)
- Wikipedia · Facts from the German Wikipedia article's infobox, translated into English with AI assistance, not checked against an investigation report. Independent review pending.