Report a Malfunctioning Engine

 

The Malfunctioning Engine Statistical Survey (MESS) program allows NAR Standards & Testing to track field trends in the reliability of sport rocket motors. An unusual number of consumer complaints against a particular engine type or lot number can trigger retesting, targeted blind purchases, manufacturer recall, or even decertification.

To report a failure with a model or high-power rocket engine, complete and submit this form. If your browser does not support forms, you may e-mail the requested information to messform@nar.org or print out a copy of the form and mail it to the address at the bottom of the page.

---

Engine Data

Manufacturer
Engine Type (e.g., C6-3, D12-7)	Check if this was a reloadable motor
Date or other code on casing (e.g., 10X6)	(On some motors, this code may be located on an endcap that is destroyed during operation. Check other motors from that same package, if any.)

---

Failure Data

Date of Failure
Geographic Location
Approximate Temperature

	Nozzle blown out		Ejection end blown out
	Casing split		Burning propellant ejected
	Casing burned through (describe where)
	No ejection charge (cap retained)
	Delay inaccurate -- estimated actual delay:
	Other failure (describe)
	Failure has been reported to the manufacturer
	I still have this motor or others from the same pack

---

Comments

(Please include how long the motor burned before failure.)

---

Reported By

Submitter:
Address:
City:		State:	Zip:
Telephone:
E-mail
NAR #	(if you are a member)

---

MESS Survey
c/o NAR Headquarters
PO Box 407
Marion, IA 52302

Return to the NAR home page  |  Join the NAR