What was found
WHEN CHANGING L PACK TO APU, SMOKE SMELL ON GROUND ON "LOW." REMOVED AND REPLACED LEFT A/C GROUND COOLING FAN. OPERATIONAL CHECK GOOD IAW MM 21-51-03.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHEN CHANGING L PACK TO APU, SMOKE SMELL ON GROUND ON "LOW." REMOVED AND REPLACED LEFT A/C GROUND COOLING FAN. OPERATIONAL CHECK GOOD IAW MM 21-51-03.