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

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Manufacturer
AeroTech
Designation
K1103X
Type
reload
Date code
10051604
Failure date
Oct 20, 2018
Location
Central California
Temperature
78 ℉
Nozzle blown out
Burning propellant ejected
Other failure
description
See comments below.
Reported to mfr.
Comments
CATO at 0.97 second of 1.5 second nominal burn. New 54/1706 hardware with only 1 flight. Two of the K1103X grains had very minor voids. Aft threads, closure, & retention including aft of rocket blown apart and 1 burning grain ejected. Accelerometer flight data matched cert thrust curve except ~25% higher thrust just prior to CATO.
Status
accepted