Air carrier flight crew reported an inadvertent runway incursion while taxiing at pit.

Attributes
ACN	1536138
Time
Date	201804
Local Time Of Day	0001-0600
Place
Locale Reference	PIT.Airport
State Reference	PA
Environment
Light	Dawn
Aircraft 1
Make Model Name	Large Transport
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) Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 345 Flight Crew Type 10000
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Ground Incursion Runway

Narrative:

I was PF (pilot flying). We briefed the taxi route from the gate to deice pad and from the deice pad to runway 28C during the captain's brief. After deicing; we called ground control for taxi from deice pad and we were told to follow (another carrier) to runway 28C. We joined taxiway echo behind (the other carrier) and taxied toward runway 28C. (The other carrier) was issued takeoff clearance approaching the runway; so they made the right turn on taxiway echo and taxied on the runway without stopping at the hold short. We were following (the other carrier) and just before making the right turn toward the runway; we realized we had crossed the hold short line without clearance. We stopped immediately and (the other carrier) took off at about the same time. Tower cleared us for takeoff; so we continued the taxi and takeoff. Tower did not say anything about us being past the hold short line; they just cleared us for takeoff.

Original NASA ASRS Text

Title: Air Carrier flight crew reported an inadvertent runway incursion while taxiing at PIT.

Narrative: I was PF (Pilot Flying). We briefed the taxi route from the gate to deice pad and from the deice pad to Runway 28C during the Captain's brief. After deicing; we called Ground Control for taxi from deice pad and we were told to follow (another carrier) to Runway 28C. We joined Taxiway Echo behind (the other carrier) and taxied toward Runway 28C. (The other carrier) was issued takeoff clearance approaching the runway; so they made the right turn on Taxiway Echo and taxied on the runway without stopping at the hold short. We were following (the other carrier) and just before making the right turn toward the runway; we realized we had crossed the hold short line without clearance. We stopped immediately and (the other carrier) took off at about the same time. Tower cleared us for takeoff; so we continued the taxi and takeoff. Tower did not say anything about us being past the hold short line; they just cleared us for takeoff.

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.