What was found
DURING PREFLIGHT, HAD THE FOLLOWING WRITEUP: ENGINE 1 FIRE BOTTLE SQUIB, NR 1 NOT TESTING. R & R ENGINE 1 BOTTLE 1 SQUIB IAW AMM 26-21-41. OPS CHECK NO GOOD. ITEM REMAINS OPEN. REMOVED CONNECTOR PLUG FROM SQUIB FIRE BOTTLE 1 AND 2 ON ENGINE 1 AND CHECK VOLTAGE 26V ON PIN 1 AND 0L ON PIN2. DID RESISTANCE CHECK ON P1 TO PIN A ON PLUG A ON FIRE CONTROL PANEL. GOT 2 OHMS ON PIN 2 TO J GOT OPEN ON INSPECTION OF WIRING CONNECTOR PLUG, SQUIB DONE REPAIR WIRE IAW ESPM REF 25-53-21. OPS CHECK GOOD. OK FOR SERVICE.