Lufthansa B744 at Frankfurt on Sep 15th 2014, cabin pressure problems

A Lufthansa Boeing 747-400, registration D-ABVL performing flight LH-732 from Frankfurt/Main (Germany) to Shanghai (China), was climbing out of Frankfurt's runway 07C when the crew stopped the climb at FL100 reporting they had cabin pressurization problems. The crew worked the related checklists trying to solve the problem however without success and subsequently returned to Frankfurt for a safe landing on runway 25L about 90 minutes after departure.

Following repairs the occurrence aircraft was able to depart the following morning about 9.5 hours after landing and reached Shanghai with a delay of 11 hours.