"Tristar" by Cyber-Hornet

Item #: SCP-XXXX

Object Class: Euclid


SCP-XXXX in its retrieval location.


One of SCP-XXXX's engines.

Special Containment Procedures:

SCP-XXXX must be kept inside a 60m x 60m x 20m containment room.
Room walls must be constructed with 6 layers of Titanium-Steel alloy and an inner core of Ceramic, insulating Polyurethane foam and ██████, in order to keep it pressure-insulated and completely soundproofed.

The room must stay sealed and video surveilled, and a condition of vacuum must be maintained within the room at all times.
The room can be entered only through a depressurization chamber, all personnel accessing the room must wear special pressurized and soundproofed suits in order to survive into vacuum. Every authorized foundation researcher entering the room must wait during a 60 seconds depressurization process before accessing SCP-XXXX’s room.
All Class D personnel must enter the room when vacuum condition is suspended.
Video surveillance devices must not record any sound that may be produced inside the containment room in the event of vacuum-sustaining systems failure.


SCP-XXXX looks like an average Lockheed L-1011 “Tristar” jet airliner. Its building date is estimated to be within 1972 and 1981. It was found in a small corner of ██████ Airport, Greece.
It appears to have no callsign or writings of any kind on its skin, while its coloration pattern resembles the one used by ██████████████. On the inside every system seems to be broken due to the long period of inactivity and researchers had documented the complete lack of seats. The aircraft was found by airport personnel in a state of decay in 20██, presumably it had been staying in such a position for █ years.

The details concerning its desertion are still unknown, but it probably happened due to its effects. SCP Foundation came into contact with the aircraft when airport staff reported that most people in the airport and in the sorrounding area who came into close visual or hearing contact with the aircraft had begun to disappear, only to be found, several weeks later, deceased. After further investigation regarding the phenomena, the research team discovered the disappearances to be linked to a “tinkling” or “rattling” sound produced by the compressor blades inside the engines.
The sound is usually produced by wind entering the engines at slow speed, making them run slowly.

The aircraft was later transported to Site ██, after a proper containment room had been constructed. SCP researchers found out that any human being who listened to the previously described sound, even indirectly (such as, but not limited to, via recording) got affected and began to display negative symptoms (anxiety, fear, insomnia).
This resulted in any subject who had been exposed to the noise, beginning to hear, regardless of distance from SCP-XXXX, the same sound within his/her head (displaying conditions regardless of gender); this is presumably caused from an unknown vibration of brain tissues.

The sound had been described as the same rattling sound of engine blades at first, starting to appear and build up in the subject’s head after some hours had elapsed from exposition.
Several days after, the noise appeared to get constant and to increase its intensity, causing the subject to stop interacting with anyone or anything.
This effect made most of interview attempts almost impossible to conduct.

Some interviewed subjects have claimed and written that once it gets constant it reaches the same noise of an active jet engine, making it impossible for the subject to sleep, listen or even hear their own voice.

For additional information, see addendum XXXX.1.

EEG analisys had proven to be effective in tracking the noise inside a subject’s brain.
The noise continues with few or no interruptions until the subject’s brain collapses, eventually ceasing all other body functions therefore causing subject’s death.
The average lasting period of affected subjects is between 7 and 9 days before expiring.

Furthermore, regardless of the location of the aircraft, presence of wind in the airport where it was found still affects the engines, also within the vacuum containment chamber.
However, if engine blades stay still in a condition of no wind upon the retrieval location, the sound doesn’t appear to manifest, therefore the aircraft produces no effects upon subjects.

Weather conditions in ██████ Airport must always be monitored.

Addendum: XXXX.1

This is a handwritten message from D-4532, days elapsed from exposition: 6





This help request was found on D-4532 deceased body after 8 days from exposition.
Although this message is clearly directed to the Foundation, subject D-4532 seemed to have been keeping this message whithin his sleeve, instead of handing it over. D-Class subject 4532 has so far been the only one to have produced a direct handwritten document about SCP-XXXX.