B737 flight crew reported they had to slam on the brakes to avoid a collision with a regional jet ta...

Attributes
ACN	1408530
Time
Date	201612
Local Time Of Day	1801-2400
Place
Locale Reference	BWI.Airport
State Reference	MD
Environment
Light	Night
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Aircraft 2
Make Model Name	Medium Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 166 Flight Crew Type 20000
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 166
Events
Anomaly	ATC Issue All Types Conflict Ground Conflict Critical

Narrative:

We pushed off [the] gate in bwi and were cleared to taxi to runway 15R via 'tango; hotel; papa'. As we approached taxiway hotel and began a left turn to transition to papa; I looked over my left shoulder to clear the way and saw an rj (regional jet) on taxiway papa taxiing very fast and on a collision course with our aircraft. As I braked to a stop; I could see them stop very abruptly and his nose strut compress. They were obviously surprised by us as well. We queried ground about who was to go first and ground responded somewhat casually for us to taxi via tango; hotel and papa - almost like he was unaware of the conflict. Neither of us recall ground issuing a hold-short nor give-way clearance when we taxied and ground did not issue a 'follow the rj' clearance either. I think they either expected us to beat him by a wide margin or he would be at the runway first. The rj followed us to the runway and we never heard them make a comment on the radio so they may have already switched themselves over to tower. We were not taxiing fast and were not feeling rushed. Ground could have made us aware of the other traffic and/or issued proper taxi and deconfliction instructions.

Original NASA ASRS Text

Title: B737 flight crew reported they had to slam on the brakes to avoid a collision with a regional jet taxiing out at BWI.

Narrative: We pushed off [the] gate in BWI and were cleared to taxi to Runway 15R via 'Tango; Hotel; Papa'. As we approached taxiway Hotel and began a left turn to transition to Papa; I looked over my left shoulder to clear the way and saw an RJ (Regional Jet) on taxiway Papa taxiing VERY fast and on a collision course with our aircraft. As I braked to a stop; I could see them stop very abruptly and his nose strut compress. They were obviously surprised by us as well. We queried Ground about who was to go first and Ground responded somewhat casually for us to taxi via Tango; Hotel and Papa - almost like he was unaware of the conflict. Neither of us recall Ground issuing a hold-short nor give-way clearance when we taxied and Ground did not issue a 'follow the RJ' clearance either. I think they either expected us to beat him by a wide margin or he would be at the runway first. The RJ followed us to the runway and we never heard them make a comment on the radio so they may have already switched themselves over to Tower. We were not taxiing fast and were not feeling rushed. Ground could have made us aware of the other traffic and/or issued proper taxi and deconfliction instructions.

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.

B737 flight crew reported they had to slam on the brakes to avoid a collision with a regional jet taxiing out at bwi.