Doctor Cimmerian Supplement
A non-anomalous model of the Cessna 175 Skylark.
Item #: SCP-XXXX
Object Class: Safe
Special Containment Procedures: When not in use, SCP-XXXX is to be contained in the Site-88 anomalous item hangar. Testing involving SCP-XXXX is to occur under the direct supervision of the XXXX project director. When feasible, no equipment or individuals are to left outside of SCP-XXXX when it returns to baseline reality.
All flight tests of SCP-XXXX are to be undertaken utilizing pilots experienced with the object's non-anomalous counterparts. An AL4 flight clearance is required for any SCP-XXXX operators.
All future testing involving SCP-XXXX has been suspended by order of the Ethics Committee.
Description: SCP-XXXX is a Cessna 175A Skylark which, under certain conditions, is capable of accessing alternate realities in which all life has recently ceased to function. The method by which this is achieved is little understood, though the process can be repeated by operating the engine at lower than recommended RPM settings. Though all Cessna 175 Skylark models will experience variably detrimental harmonics at these settings, SCP-XXXX is the only instance of the model that experiences this particular anomalous effect.
When SCP-XXXX is flown at RPM settings in the 2400-2500 range for longer than 3 minutes, SCP-XXXX and its contents will be moved to a reality in which all life has ceased to function. This transition is not accompanied by any meaningful indications other than the cessation of life in all observable entities from SCP-XXXX's vantage point.
This effect will continue until SCP-XXXX's engine is fully deactivated, at which point the object and all items or entities located inside it will transition back to the baseline reality. During this transition all individuals located inside SCP-XXXX will experience a period of unconsciousness. All automated equipment, including that which is set to record data relating to the transition will experience a 12 second gap in their operation.
Repeated testing has determined that realities visited by SCP-XXXX are identical to baseline with the sole exception of the cessation of life at the moment of SCP-XXXX's arrival. All realities visited by utilizing SCP-XXXX are absent of life of any kind except that which has been transported aboard SCP-XXXX. Advanced life, plant life, microbial life, non-cellular life, and anomalous life appears to be affected similarly.
The various iterations appear to be capable of supporting life, with testing revealing that living organisms transported by SCP-XXXX are capable of growing in their environments. Corpses transported from these iterations to the baseline reality also appear to be vulnerable to decomposition by living microorganisms to which they are introduced.
The effect which causes the cessation of all life appears to occur without regard for the speed at which information must normally travel as understood by physics. Broadcast data from various locations worldwide have proven that the cessation of life occurs in all areas without any delay upon SCP-XXXX's transition.
Though testing in this field has been limited due to resource and classification constraints, no known limit to this effect has been determined with regards to range.
Testing Log XXXX-06
Testing Staff (onboard): Agents Riggs and Lakota.
Testing Staff (observing): Doctor Jiménez.
Procedure: Attempt to replicate effect as described by original owner.
Result: Plane was taken into the air and flown at detrimental RPM settings. Cessation of all life was observed. Upon landing and deactivation of engine, transition effects occurred.
Testing Log XXXX-09
Testing Staff (onboard): Agents Riggs and Lakota. D-30492.
Testing Staff (observing): Doctor Jiménez and Doctor Cimmerian.
Procedure: Primary Effect is to replicated, then D-30492 is to leave the interior of SCP-XXXX once it has landed. Agent Riggs is to then fully deactivate SCP-XXXX's engine.
Result: Cessation of all life was observed. Upon engine deactivation, D-30492 was not able to be located. Transmitting equipment from D-30492 is either destroyed or out of range.
Testing Log XXXX-13
Testing Staff (onboard): Agents Riggs and Lakota.
Testing Staff (observing): Doctor Jiménez.
Procedure: Primary effect is to be replicated. Agent Lakota is to take tissue samples from corpses located in alternate reality.
Result: Due to efficient use of time, Agent Lakota is able to take tissue samples from several hundred corpses before fuel issues necessitate his return to SCP-XXXX.
Testing Log XXXX-24
Testing Staff (onboard): Agents Riggs and Lakota.
Testing Staff (observing): Doctor Jiménez.
Procedure: Primary effect is to be replicated at the Site-19 hangar to study the extent of SCP-XXXX's effect. Agent Lakota is given limited access to Site-19's containment wing for the purposes of the test.
Result: All living anomalous entities appear to be deactivated or dead. Many object previously judged to be non-living are also deactivated or dead. To see a full listing of objects which retained anomalous properties during this test please see document XXXX-24-F. Test concludes with no issues.
Testing Log XXXX-29
Testing Staff (onboard): Agents Riggs and Lakota.
Testing Staff (observing): Doctor Jiménez and Doctor Cimmerian.
Procedure: Primary effect is to be replicated near a stadium containing approximately 267,000 individuals. Exceptions to SCP-XXXX's primary effect are to be studied, if extant. SCP-XXXX is to utilize modified fuel to increase test length.
Result: See document XXXX-29-A for more details.
Test XXXX-29 attempted to utilize the concentration of individuals in order to discover any exceptions to SCP-XXXX's effect. All 267,000 individuals were, however, to the best of our knowledge, dead.
The modifications to SCP-XXXX's fuel allowed it to theoretically operate for up to 15 hours. As per testing protocols, Agents Riggs and Lakota were to maintain radio contact during the entirety of the test. At exactly 11 hours, 15 minutes, and 32 seconds after the cessation of all life outside of SCP-XXXX, both agents reported a rising level of interference in their radio communications. At 12 hours, 14 minutes and 50 seconds, this interference became detrimental to mandated radio contact.
As per testing protocols with regards to severed communications, Agent Lakota returned to SCP-XXXX. Agent Riggs then deactivated SCP-XXXX's engine and the test was concluded without further incident.
While baseline communications between the two agents was uneventful outside of expected difficulties regarding the interference, examinations of that interference were attempted immediately. From this interference over 12 million additional audio recordings were isolated.
The vast majority (approximately 98%) of these audio tracks appear to originate from realities in which SCP-XXXX is either non-anomalous or was never contained. In these realities, SCP-XXXX remained under the control of its original owner who is, in the majority of those reality subsets, still living.
The remaining audio tracks originate from realities in which SCP-XXXX is under containment by either the Foundation or various organizations roughly analogous to the Foundation. The majority of these reality subsets appear to differ from our own reality in ways unrelated to SCP-XXXX.
Seven reality subsets have been found in which the primary differences are attributable to a variation in SCP-XXXX's effects. Pertinent audio recordings relating to those reality subsets have been included below.