B737-700
Flight Crew Last 90 Days 88
Human-Machine Interface
Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Became Reoriented; Flight Crew Overcame Equipment Problem
Human Factors; Procedure
It was first flight for aircraft after maintenance was performed. On climbout and passing through 10;000 FT; received auditory warning for cabin pressurization. Looked at pressurization readout and saw cabin altitude was 10;000 FT. Performed immediate action items: donned oxygen masks: On 100% and crew communications: Established. Ran through the checklist and saw switch was in manual. Manually closed outflow and closed outflow valve to get cabin altitude below 10;000 FT and then switched to auto. Cabin pressurized normally and continued flight. We momentarily leveled off at 10;000 FT while running checklist and pressurizing cabin. After checklist complete and pressurization complete climbed to cruise altitude. Better checklist adherence and confirmation of items during checklist challenge and response.
On the first flight for aircraft after maintenance was performed; a B737-700 First Officer experiences a cabin altitude warning horn passing through 10;000 FT. The aircraft is leveled and the pressurization control switch is found in the manual position. After restoring pressurization and switching to auto; the flight continues to destination.