What was found
UNCONTROLLED CABIN PRESS CLIMB AT 28K FT, DESCENDED TO 11K AND CONTROL RETURNED. *S/D* FOUND FAILED CAPTAINS ALTIMETER. REPLACED THE CAPTAINS ALTIMETER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
UNCONTROLLED CABIN PRESS CLIMB AT 28K FT, DESCENDED TO 11K AND CONTROL RETURNED. *S/D* FOUND FAILED CAPTAINS ALTIMETER. REPLACED THE CAPTAINS ALTIMETER.