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    5 U.S.C. 552 (b)(6)
    
    technical experts, some of whom disagreed among themselves, to
    grapple with the complexities of the AFES. No average driver o
    crew chief could reasonably be expected to understand the syste
    especially as presented in the TM.
    
         f - The AFES releases bottled halon to extinguish fires
    The halon bottles have a hole for a safety pin to prevent
    inadvertent discharge while maintenance is being performed on t
    AFES or while the bottles are being removed or replaced.
    
                     (1)     Even with the pins in the safety position, the
    bottles will discharge if AFES is set in the operational node a
    activates automatically. Similarly, the bottles will discharge
    with.the pins installed if the manual activation is used from
    ins~-de the vehicle on the crew Test and Alarm Panels. However,
    thd bottles activated by the outside pull lanyard will not
    discbarge if the pins are in place. (See Annex G for a matrix
    show*incf how the system functions with various settings.)
    
                     (2)     Knowledge of pin placement and function in the
    orgahizational maintenance element was poor. Again, the TM waz
    confusing and difficult to understand, requiring consultation
    with the Project Manager's Office for clarification.
    
                     (3)     At least one halon bottle in the cr~w compartmIE
    ~.lscharged when the gunnery sergeant pulled the manual lanyard
    after the fire started. The effectiveness of the halon'was
    mitigated by the driver's compartment hatch and the rear doors
    being open. This is a nornal arrangement during operator
    maintenance.
    
        g. The M992 has a personnel heater in the crew compartmei
    located on the forward wall, roughly centered. The heater use!
    fuel from the vehicle's fuel tank.
    
              (1)  When CEGSWA issued the M992,             HOW1115
                                                               '2
    the battery, the driver (at that time             received a DA
    Form 2404 showing the heater as nonoperationals,  He conducted I
    own PMCS and verified that the heater was not functional. The
    fuel Pump for the heater did work because he could hear it
    clicking, but the blower motor never came on.     He was not
    concerned about the malfunctioning heater because of the hrit
    desert climate. Vurthermore, the unit was part of the initial
    squadrcn that drew equipment and had its focus on the mainr
    a,:tiuns necessary to
    ri,lv- the unit rapidly to Doh~a- In one maintenance worker's
    words, Lt was a "shoot, nove and communicate" check.
    (2) During afive day 2d Squadron field exercise, 6
                            iii, if th,- cre-. nier,be.r-, wA-s -ht-inv
                  i'l        i:  g , i r t s r i ci r: st  -ri
                  lilt           Swit,~h, r1jr          --11 11 -1.
    
                                      4
                           5 U.S.C. 552 (b)(6)
    

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