What was found
SITTING AT GATE TURNED ON BOTH PACKS AND NOTICED STRANGE BURNING ODOR. R & R NR 1 DUAL TEMP CONTROL VALVE. OPS CHECKED GOOD IAW AMM 21-60-01.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SITTING AT GATE TURNED ON BOTH PACKS AND NOTICED STRANGE BURNING ODOR. R & R NR 1 DUAL TEMP CONTROL VALVE. OPS CHECKED GOOD IAW AMM 21-60-01.