1. MT23/JM61 FIRE EXTINGUISHER CARTRIDGE
Angelo Brown and Courtney Gamble
CAD/PAD In-Service Engineers
23 May 2017

2. MT23 JM61 Platforms: CH-53E, MH-53E
CCU-127/A Fire Extinguisher Cartridge
P/N: 3205AS105
JM61
CCU-159/A Fire Extinguisher Cartridge
P/N: 3205AS261
HERO Safe Replacement for MT23
Platforms: CH-53E, MH-53E
Used to release fire extinguishing fluid into the area surrounding the aircraft engine in the event of a fire

3. ISSUE AND STATUS Low on stock JM61 first article test (FAT) failure
Insufficient inventory to cover required change-out in FY17
JM61 first article test (FAT) failure
Contract awarded Aug 2015 for 1130 units
FAT#1 failed bridge filter test
FAT#2 failed post environmental leakage and bridgewire resistance
Failure Analysis and Corrective Action Report (FACAR) pending approval
MT23 emergency contract award
Letter contract awarded Feb 2017 for 501 units
Delivery expected July 2017
MT23 recertification of Code “H” units to Code “A”
Units under assessment at NSWC IHEODTD
Evaluation IAW MT23 requirements

4. PATH FORWARD
Continue screening Code “H” MT23s to recertify as Code “A” to supplement low stock
Delivery of JM61 production lot expected Oct 2017 will provide sufficient stock to cover FY17 change outs
FY18 planned MT23 buy to ensure sufficient stock to cover future stock requirements