What was found
LOST CONTROL OF CABIN PRESSURE AT TOP OF CLIMB. THROTTLES AT IDLE, CABIN CLIMBED AT 1300 TO 1500 FPM UNTIL POWER WAS ADDED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LOST CONTROL OF CABIN PRESSURE AT TOP OF CLIMB. THROTTLES AT IDLE, CABIN CLIMBED AT 1300 TO 1500 FPM UNTIL POWER WAS ADDED.