Narrative:

Called maintenance for a problem with the aft outflow valve. Maintenance came to aircraft and started working on problem. They put aircraft in manual control; worked the valves and left cockpit. 5-10 minutes later; the plane pressurized on the ground. Before we could try to depressurize the aircraft; one of the maintenance guys opened the door. He said he was ok; we later heard that he was injured. The plane had to be downed and transloaded to another aircraft. Asked the captain if we should continue trip; he said yes. In hindsight; should have made it clear to captain that he should make some more phone calls.

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Original NASA ASRS Text

Title: First Officer of unidentified air carrier type aircraft believed the Captain failed to give adequate attention to a mechanic who may have been injured as a result of a botched pressurization Maintenance procedure which caused him to be injured when he opened a door on the aircraft while it was partially pressurized.

Narrative: Called Maintenance for a problem with the aft outflow valve. Maintenance came to aircraft and started working on problem. They put aircraft in manual control; worked the valves and left cockpit. 5-10 minutes later; the plane pressurized on the ground. Before we could try to depressurize the aircraft; one of the Maintenance guys opened the door. He said he was OK; we later heard that he was injured. The plane had to be downed and transloaded to another aircraft. Asked the Captain if we should continue trip; he said yes. In hindsight; should have made it clear to Captain that he should make some more phone calls.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.