989. PILOT COLLECTIVE STICK DOES NOT STOW LANDING/SEARCH LIGHT

988. PILOT COLLECTIVE STICK DOES NOT LIGHT LANDING/SEARCH LIGHT (cont)

990. PILOT COLLECTIVE STICK EDGE-LIGHT IS NOT LIGHTED

TM-1-1520-238-T-6 Army Model AH-64 Helicopter (NSN
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TM 1-1520-238-T-6 9–282 9–89. PILOT COLLECTIVE STICK – DOES NOT STOW LANDING/SEARCH LIGHT 9–89 Tools: Nomenclature Part Number Tool Kit, Electrical SC518099CLA06 Repairer’s Multimeter, Digital AN/PSM-45 Personnel Required: 68X Armament/Electrical Systems Repairer References: TM 1-1520-238-23 Equipment Conditions: Ref Condition TM 1-1520-238-23 Non-transparent barrier and crew station seat (pilot) removed WARNING Turn off power before detaching or attaching wires and connectors. High current 28 VDC or 115 VAC is present. Failure to do so could result in death or serious injury. 1. Check for open between: J107-r and (A326)TB1-23-E, (A326)XK1-1/2-C1 and (A326)TB1-23-B, (A326)XK1-1/2-A2 and (A326)TB1-23-D, (A326)XK1-1/2-A1 and (A326)TB1-23-C, (A326)XK1-1/2-X2 and ground. Does open exist? YES Repair open wire. Go to paragraph 9–80. NO Go to step 2. 2. On pilot collective stick, set and hold SRCH LT switch (S4) to STOW, check for open between P107-r and P107-s. Does open exist? YES Replace pilot SRCH LT switch (S4) (TM 1-1520-238-23). NO Replace search light relay (A326)K1 (TM 1-1520-238-23). END OF TASK

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