As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE FIRE BOTTLE SQUIB TEST FOR ENGINE 2 TEST 2 DOES NOT ILLUMINATE DURING TEST. NO TIME TO TROUBLESHOOT. APPLIED MEL & PERFORMED THE SQUIB DISCHARGE CIRCUIT TEST OF THE FIRE BOTTLE SQUIB SYSTEM TEST. LOCATED PROBLEM DIRECTLY TO THE TEST PANEL REQUIRES PANEL ASSY 181-0028 REF IPC26-21-02PG 2. CLEANED BOTH SWITCH CONTACTS & RE-SEATED LIGHT CAPS. OP CK GOOD.