What was found
AT 37000 FT CABIN ALTITUDE INDICATED 9800 FT, OPERATED STAND BY MODE AND PACKS ON HIGH POSITION TO START CABIN DESCENDING. REMOVED AND REPLACED TORN APU PNEU MANIFOLD FLEX RUBBER BOOT AT KEEL BEAM AREA.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AT 37000 FT CABIN ALTITUDE INDICATED 9800 FT, OPERATED STAND BY MODE AND PACKS ON HIGH POSITION TO START CABIN DESCENDING. REMOVED AND REPLACED TORN APU PNEU MANIFOLD FLEX RUBBER BOOT AT KEEL BEAM AREA.