Serious injuries or even fatalities can occur if the proper procedures for the automatic fire extinguishing system (AFES) and manual fire extinguishing system (MFES) aren’t followed.
Changes have been made to the AFES/MFES procedures in the HMMWV’s IETM 9-2320-387-13&P (Mar 21). HMMWV maintainers should use the most current IETM before performing field-level AFES/MFES maintenance.
IETM EM 0323 (Mar 21) replaces TM 9-2320-387-13&P (Mar 14). It can be downloaded at:
You’ll need your CAC to access.
You can also contact your logistics assistance representative (LAR) or state surface maintenance manager for help.
TACOM Ground Safety Action Message 21-018 has a list of LARS and state surface maintenance managers. With a CAC, it’s available at the following link: