Malfunctioning Engine Statistical Survey
M.E.S.S.

Latest Reports

The last 25 motors with failure reports and the top 25 reported motors of all time. For more detailed search, see the search page.

Most Recent
ManufacturerMotorTypeLastCount
Piotr Tendera Rocket MotorsE20SUSep 9, 20261
Estes IndustriesF15SUSep 6, 20266
Estes IndustriesA10SUSep 6, 20265
AeroTechG80SUSep 5, 20262
AeroTechI1299reloadSep 5, 20262
AeroTechJ1299reloadSep 4, 20261
Cesaroni TechnologyG88SUSep 4, 20261
Estes IndustriesA3SUAug 30, 20264
Estes IndustriesC6SUAug 30, 20261
Estes IndustriesD12SUAug 29, 202610
Estes IndustriesE16SUAug 29, 20262
AeroTechI357reloadAug 29, 20261
AeroTechD16SUAug 23, 20261
Quest AerospaceD16SUAug 23, 20261
Estes IndustriesC5SUAug 22, 20265
Estes IndustriesE12SUAug 16, 20267
AeroTechF67SUAug 13, 20261
Cesaroni TechnologyK490reloadAug 8, 20261
Quest AerospaceE26SUAug 1, 20263
AeroTechF44SUAug 1, 20261
Estes IndustriesC11SUJul 25, 20263
Cesaroni TechnologyG78reloadJul 12, 20261
Quest AerospaceA6SUJul 11, 20261
Quest AerospaceC12SUJun 27, 20262
AeroTechI439reloadJun 27, 20261
Top of All Time
ManufacturerMotorTypeLastCount
Estes IndustriesE12SUAug 16, 2026379
Estes IndustriesD12SUAug 29, 2026225
Estes IndustriesE9SUNov 22, 2025194
Estes IndustriesA10SUSep 6, 2026151
Estes IndustriesC6SUAug 30, 202691
Estes IndustriesF15SUSep 6, 202678
Estes IndustriesC11SUJul 25, 202661
Estes IndustriesA3SUAug 30, 202660
Estes IndustriesE16SUAug 29, 202646
Estes IndustriesC5SUAug 22, 202644
Quest AerospaceC12SUJun 27, 202638
Estes IndustriesB6SUMay 10, 202525
Quest AerospaceD16SUAug 23, 202624
Quest AerospaceD20SUApr 30, 202622
Quest AerospaceE26SUAug 1, 202620
AeroTechF44SUAug 1, 202618
AeroTechG40SUAug 25, 202418
Estes IndustriesA8SUJun 16, 202418
AeroTechG80SUSep 5, 202617
AeroTechG79SUOct 18, 202517
AeroTechF32SUSep 23, 202216
AeroTechF50SUMay 9, 202615
Quest AerospaceC18SUAug 31, 202515
Quest AerospaceB4SUMar 26, 202613
AeroTechG77SUOct 26, 202513

Back up to the Most Recent motors.