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

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Manufacturer
AeroTech
Designation
I327DM-14A
Type
reload
Date code
01/25/17 (102517)
Failure date
Sep 16, 2018
Location
Black Rock Desert (XPRS 2018)
Temperature
70 ℉
Other failure
description
Casing separated at start of lower threads (where solid case transitions to threaded portion). Aft closure, nozzle and lower O-ring (all recovered) were shot out of the bottom of the motor, bursting through the Aero Pack 54mm retainer ring. After recovery only a very small portion of the threaded section was still attached to the casing, the rest was missing.
Reported to mfr.
Comments
Motor burned for around 0.4s before failure. I have pictures of casing after flight I can provide upon request, and video though the rocket was out of frame when the motor failed.
Status
accepted