As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) ENGINE FIRE EXTINGUISHER CARTRIDGE FIRING CIRCUIT WIRE HAD HIGH RESISTANCE DUE TO POORLY SOLDERED JOINT AK-A1. WIRE IS LOCATED BETWEEN CIRCUIT BREAKER 1WB9 AND AIRCRAFT ELECTRICAL GROUND VIA UPPER PRODUCTION BREAK 221-01-00 (CONTACT AK-A1).