As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUX PITOT LIGHT ILLUMINATED IN FLIGHT. GROUNDED - YES. PERFORMED B737-900 FIM 30-31 TASK 801 AND FOUND AUX PITOT PROBE AT FAULT. REMOVED AND REPLACED AUX PITOT PROBE PER B737-900 AMM 34-11-01. PERFORMED GOOD OPS TEST AND LEAK TEST OF AUX PITOT PROBE PER AMM 34-11-01-400-801.