As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/A ADVISED ROW 16A OVERWING EXIT SIGN COVER FELL OFF. THIS SIGN IS LOCATED JUST BELOW AND TO THE RIGHT OF THE OVERWING EXIT. GROUNDED - YES. INSTALLED ROW 16A OVERWING EXIT SIGN COVER LOCATED JUST BELOW AND TO THE RIGHT OF THE OVERWING EXIT PER ASA B737-900ER AMM 33-51-01-960-802.