As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AFT AIR STAIR LIGHT ON S/O PANEL CAME ON AT 1000FT ON TAKEOFF AND STAYED ON DURING DESCENT THE AFT AIR STAIR LIGHT WENT OUT AT LF 090 AND CAME BACK ON AT 4000 FT. RELEASED FOR SERVICE IAW MEL: 52-06-B. WORKED IN CONJUNCTION WITH TSI 52-30/4231. R & R S395 AFT STAIRS CONTROL HANDLE ACTUATOR SWITCH AND S268 AFT STAIRS UPLOCK ACTUATOR SWITCH. PERFORMED AFT STAIRS OPS TEST IAW AND ALL TESTS GOOD.