Incident Report
A pilot reported that during a night flight, the cockpit lights turned off while lowering the flaps for landing. Attempts to reactivate the lights were unsuccessful. The precision approach path indicator (PAPI) lights were not functioning, and the pilot could not activate the runway lights. The aircraft touched down past the first chevron in the displaced threshold, after which a thump was heard. The pilot taxied to the ramp without further incident.
A passenger, who was an airframe and powerplant mechanic, stated that when the cockpit lights failed, he used a flashlight to illuminate the cockpit. He could not restore the panel lights but observed that the runway lights appeared bright. During the landing, the passenger felt a sudden drop, and the airplane landed hard and bounced.
Examination
Postaccident examination of the aircraft revealed substantial damage to the right horizontal stabilator. The pilot and the passenger went to the beginning of the approach runway and found pieces of broken runway lights.
NOTAM
Archived Notices to Airmen (NOTAMs) for the accident date stated: "RWY 31 PAPI UNUSABLE."