Narrative:

I was originally scheduled to be the international relief officer (international relief officer) on [an international flight]. We ended up on maintenance and had to do a check on one of the eec's and thus had to do a runup. Passenger deplaned; flight attendants stayed on. [This airport] requires being towed to a remote stand for a runup. The mechanic opened the hatch at door 1L that went to the east&east compartment for a check during/after the engine runup before we were to towed; the door stayed open the entire time. It was the first time I saw it and I commented to one of the flight attendants (flight attendant) and captain how interesting it was. We ended up being towed by supertug over to the runup [area]; I went back to talk to the flight attendant about their drop dead time since now it was a lengthy delay. A couple of minutes later and while fully stopped and before the runup; I went back to the galley to grab a quick snack and took a quick bite by door 1R. Out of the corner of my eye I saw [an flight attendant] falling into the east&east compartment. The mechanic who was talking in the cockpit turned around [and] helped; I went by him while he was helping her get out. I immediately told the captain what happened. We were coordinating immediately with ground in the cockpit to get help and help arrived in about 10 - 15 min. She appeared conscious but obviously in pain. I'm not certain what the circumstances were of her falling in and why she went up the aisle.

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Original NASA ASRS Text

Title: B767 First Officer reported a flight attendant was injured after falling into the open E&E compartment during ground maintenance.

Narrative: I was originally scheduled to be the International Relief Officer (IRO) on [an international flight]. We ended up on maintenance and had to do a check on one of the EEC's and thus had to do a runup. Passenger deplaned; flight attendants stayed on. [This airport] requires being towed to a remote stand for a runup. The mechanic opened the hatch at door 1L that went to the E&E compartment for a check during/after the engine runup before we were to towed; the door stayed open the entire time. It was the first time I saw it and I commented to one of the Flight Attendants (FA) and Captain how interesting it was. We ended up being towed by supertug over to the runup [area]; I went back to talk to the FA about their drop dead time since now it was a lengthy delay. A couple of minutes later and while fully stopped and before the runup; I went back to the galley to grab a quick snack and took a quick bite by door 1R. Out of the corner of my eye I saw [an FA] falling into the E&E compartment. The mechanic who was talking in the cockpit turned around [and] helped; I went by him while he was helping her get out. I immediately told the Captain what happened. We were coordinating immediately with Ground in the cockpit to get help and help arrived in about 10 - 15 min. She appeared conscious but obviously in pain. I'm not certain what the circumstances were of her falling in and why she went up the aisle.

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.