Narrative:

At altitude several hours into an uneventful flight I elected to transfer control of the aircraft to the first officer and exit the cockpit to retrieve my meal from the galley. Upon reentry attempt I entered the security code for the cockpit door. I witnessed the appropriate lights illuminated and heard the chime from the other side of the door. I was; I assume mistakenly; denied access by the first officer. I waited a moment or two for him to realize his error and turn the control knob to unlock; thus granting me access despite the original selection. This did not happen. I reentered the security code from outside the cockpit door. But; because of my previous deny status the door was in a reset mode and no chime or indication of my second entry request was received inside the cockpit. I could have elected to stand outside the door for several minutes for the timer to count down allowing me a re-attempt; but; because I did not know what was going on inside the cockpit I elected to call the first officer on the provided intercom system. I could hear the intercom chime through the door. He did not answer. I called the second time. He did not answer. I called a third time. At this point; because he did not know how to operate the door unlock system and not know how to operate the intercom; the first officer elected to get up from his seat to manually open the door for me.

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Original NASA ASRS Text

Title: B767 Captain reported being locked out of the cockpit and the FO not knowing how to unlock the door to let him back in.

Narrative: At altitude several hours into an uneventful flight I elected to transfer control of the aircraft to the First Officer and exit the cockpit to retrieve my meal from the galley. Upon reentry attempt I entered the security code for the cockpit door. I witnessed the appropriate lights illuminated and heard the chime from the other side of the door. I was; I assume mistakenly; denied access by the First Officer. I waited a moment or two for him to realize his error and turn the control knob to unlock; thus granting me access despite the original selection. This did not happen. I reentered the security code from outside the cockpit door. But; because of my previous deny status the door was in a reset mode and no chime or indication of my second entry request was received inside the cockpit. I could have elected to stand outside the door for several minutes for the timer to count down allowing me a re-attempt; but; because I did not know what was going on inside the cockpit I elected to call the First Officer on the provided intercom system. I could hear the intercom chime through the door. He did not answer. I called the second time. He did not answer. I called a third time. At this point; because he did not know how to operate the door unlock system and not know how to operate the intercom; the First Officer elected to get up from his seat to manually open the door for me.

Data retrieved from NASA's ASRS site 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.