Ord ATC and A320 flight crew reported that another aircraft cut them off during taxi; causing them t...

Attributes
ACN	1711283
Time
Date	201912
Local Time Of Day	1201-1800
Place
Locale Reference	ORD.Tower
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Route In Use	None
Flight Plan	IFR
Aircraft 2
Make Model Name	EMB ERJ 170/175 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Ground Instructor
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 17
Person 2
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument
Experience	Flight Crew Last 90 Days 196 Flight Crew Total 9953 Flight Crew Type 9953
Events
Anomaly	Conflict Ground Conflict Critical Deviation - Procedural Clearance Flight Deck / Cabin / Aircraft Event Illness

Narrative:

I was told by the flm (front line manager) that aircraft X was coming off gate xx and given appropriate taxi instructions by the cpcit (career professional controller in training) I was training on ogc. The pilot reported that another aircraft cut them off at the last minute causing the pilot to take evasive action by slamming on brakes. This caused flight attendants in the aircraft to become injured. Due to the departure demand and number of aircraft taxiing around the airport (120 departures and approximately 90 arrivals) it is extremely difficult to make every single traffic call accurately. My cpcit instructed the aircraft to taxi; and based on her judgment; the pilot had enough time to make it in front of the other aircraft. She did not think speed would be an issue with the other taxiing aircraft. The airlines could spread the departures out throughout the rush a bit more. The demand for 120 departures in 45 minutes is an extremely busy rush; and difficult for any controller to make every single traffic call and get it right every single time.

Original NASA ASRS Text

Title: ORD ATC and A320 flight crew reported that another aircraft cut them off during taxi; causing them to slam on the brakes; which injured a flight attendant.

Narrative: I was told by the FLM (Front Line Manager) that Aircraft X was coming off gate XX and given appropriate taxi instructions by the CPCIT (Career Professional Controller In Training) I was training on OGC. The pilot reported that another aircraft cut them off at the last minute causing the pilot to take evasive action by slamming on brakes. This caused flight attendants in the aircraft to become injured. Due to the departure demand and number of aircraft taxiing around the airport (120 departures and approximately 90 arrivals) it is extremely difficult to make every single traffic call accurately. My CPCIT instructed the aircraft to taxi; and based on her judgment; the pilot had enough time to make it in front of the other aircraft. She did not think speed would be an issue with the other taxiing aircraft. The airlines could spread the departures out throughout the rush a bit more. The demand for 120 departures in 45 minutes is an extremely busy rush; and difficult for any controller to make every single traffic call and get it right every single time.

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.

Ord ATC and A320 flight crew reported that another aircraft cut them off during taxi; causing them to slam on the brakes; which injured a flight attendant.