B767 captain reported potential flight attendant injuries during push back due to tow bar breakaway.

Attributes
ACN	1705103
Time
Date	201911
Local Time Of Day	1801-2400
Place
Locale Reference	EWR.Airport
State Reference	NJ
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 203 Flight Crew Total 7009 Flight Crew Type 4928
Events
Anomaly	Deviation - Procedural Other / Unknown Flight Deck / Cabin / Aircraft Event Illness Ground Event / Encounter Other / Unknown

Narrative:

Tow bar breakaway on forward pull after pushback from the gate. Abrupt braking to full stop; [but] no aircraft damage. Several flight attendants were thrust into bulkhead or furnishings. All completed the flight; [and] several filed possible injury reports.

Original NASA ASRS Text

Title: B767 Captain reported potential Flight Attendant injuries during push back due to tow bar breakaway.

Narrative: Tow bar breakaway on forward pull after pushback from the gate. Abrupt braking to full stop; [but] no aircraft damage. Several flight attendants were thrust into bulkhead or furnishings. All completed the flight; [and] several filed possible injury reports.

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.