(pm halo) helmet assembly - Gentex Corporation

INSPECTIONSPreflight, postflight, and periodic inspections are required to ensure that thehelmet is in proper operating condition. The user shall perform preflightinspections. The maintenance technician shall perform postflight inspections(see technical manual TP0347). The user is responsible for ensuring that themaintenance technician has performed periodic inspections.Preflight InspectionPrior to each flight, the user shall inspect the helmet to determine that it is inserviceable condition and report any deficiencies to the maintenance technician.Do the following:1. Ensure that the helmet, earcups and oxygen mask are properly fitted.2. Check the helmet shell for evidence of damage such as cracks, warping, orchipped paint.NOTE: A hairline crack is defined as a fine crack which has broken the paintsurface, but has not necessarily broken through the layers of the helmetmaterial. Any crack that has penetrated through the helmet material willaffect the integrity of the helmet and therefore the helmet should becondemned and disposed of.3. Ensure that the chin strap and nape strap are properly adjusted and thatthe screws are securely attached to the helmet shell.4. Ensure that the visors and goggles are free from cracks, scratches, dust,and smears. Minor scratches not interfering with the critical vision area arepermissible.5. Ensure that all communications components are securely attached andthat the headset/microphones operate properly. This check may beperformed by plugging the microphone cable and plug assembly intoMQ-1/MQ-1A tester, DMH-1, or service-approved tester. Speak into themicrophone. The microphone and earphones are operating properly whenthe voice is transmitted from the microphone through the amplifier and isheard in the headset.6. Check the energy absorbing liner and the suspension system (fittingpads, XLINER, or TPL) for looseness, improper fit, holes, cracks, or tornfabric.7. Check the general condition of all attaching hardware and components.8. Inspect the oxygen mask and associated components for general conditionas required by the applicable technical order.21