As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORWARD F/A REPORTS STRONG EXHAUST FUME/ODOR NEAR HER JUMPSEAT DURING FLIGHT WITH BOTH BLEEDS ON. INCREASED WHEN POWER LEVERS WERE REDUCED FOR DESCENT. RECIRC FAN WAS ON. GROUND RAN ENGINES. WITH NR 1 BLEED SELECTED ON NO ABNORMAL SMELLS NOTED. WITH NR 2 BLEED SELECTED ON EXHAUST ODOR NOTED IN COCKPIT AND FWD CABIN. WITH APU BLEED SELECTED ON NO ABNORMAL ODORS NOTED. R & R NR 2 ENGINE P2.7 INTERCOMPRESSOR BLEED VALVE IAW AMM TASK 75-31-01-000-801 AND 75-31-01-400-801. GROUND RAN ENGINES WITH NR 2 BLEED SELECTED ON NO ABNORMAL ODORS NOTED. RETURNED TO SERVICE.