What was found
CLT- BURNING SMELL WHILE RUNNING BOTH PACKS OFF OF APU AT GATE. REMOVED AND REPLACED NR 1 PACK DUAL TEMP CONTROL VALVE RUBBER CONNECTIONS. OPS CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CLT- BURNING SMELL WHILE RUNNING BOTH PACKS OFF OF APU AT GATE. REMOVED AND REPLACED NR 1 PACK DUAL TEMP CONTROL VALVE RUBBER CONNECTIONS. OPS CHECK GOOD.