Narrative:

Just leveled off at 29000 feet; passenger seat belt sign was on; flight attendants were beginning service. No turbulence at the time of the event; we hit a moderate jolt that lasted 3 seconds; strong enough that two flight attendants were hurt. I believe it was the wake from another aircraft. [One flight attendant] strained her right ankle. [Another flight attendant] complained of lower back pain. According to the lead flight attendant they were ok to continued to our destination but just to be sure he requested paramedics meet the aircraft.

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Original NASA ASRS Text

Title: B777 flight crew reported two flight attendants were injured as a result of a wake turbulence encounter.

Narrative: Just leveled off at 29000 feet; passenger seat belt sign was on; flight attendants were beginning service. No turbulence at the time of the event; we hit a moderate jolt that lasted 3 seconds; strong enough that two flight attendants were hurt. I believe it was the wake from another aircraft. [One Flight Attendant] strained her right ankle. [Another Flight Attendant] complained of lower back pain. According to the lead flight attendant they were ok to continued to our destination but just to be sure he requested paramedics meet the aircraft.

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.