SECTION II. FIRE DETECTION SYSTEM MAINTENANCE

TM 1-1520-238-23 12-54 SECTION II. FIRE DETECTION SYSTEM MAINTENANCE 12.16. FIRE DETECTION SYSTEM INSPECTION 12.16.1. Description This task covers: Inspection. 12.16.2. Initial Setup Tools: Aircraft mechanic’s tool kit (item 376, App H) Personnel Required: 67R Attack Helicopter Repairer 67R3F Attack Helicopter Repairer/Technical Inspector References: TM 55-1500-323-24 Equipment Conditions: Ref Condition 1.57 Helicopter safed 12.16.3. Inspection a. Check flame detectors for missing screws and cracked or broken lenses. None allowed. b. Check louver fire/overheat detector frames for damaged clips. None allowed. c. Check flame detector amplifiers for damage or loose screws. None allowed. d. Check APU fire panel for illegible lettering, cracked or broken lenses, and loose knobs or switches. None allowed. e. Check connectors for loose or bent pins, thread damage, and for frayed, cut, or loose wires (TM 55-1500-323-24). f. Check connector operation for smooth positive locking action (TM 55-1500-323-24). g. Check general mounting hardware for cracks, gouges, nicks, scratches, chafing, damage, rounded flats, and stripped or damaged threads. Replace damaged hardware. h. Check components for scratches, nicks, and gouges. (1) Minor scratches without burrs or raised material that does not penetrate through protective finish are acceptable. (2) Nicks and gouges that exceed 0.040 INCH or 10 percent of material thickness are not allowed. END OF TASK