B737 flight crew reported a collision with an airport construction vehicle.

Attributes
ACN	1564932
Time
Date	201807
Local Time Of Day	1801-2400
Place
Locale Reference	DCA.Airport
State Reference	DC
Environment
Light	Night
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Taxi
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 160 Flight Crew Type 15400
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 378 Flight Crew Type 7000
Events
Anomaly	Ground Event / Encounter Vehicle Ground Incursion Taxiway

Narrative:

Flight pushed from gate at dca. All preflight checklists; briefings and airport diagrams were discussed and reviewed prior to pushback including the construction on taxiway P. Taxi instructions were issued by ground to 19 via K and hold short of runway 15. While passing the construction zone on P the actual marked work zone also covered the infield space between P and K with construction vehicles spread throughout the enclosed area. I was taxiing the aircraft between 10 to 15 knots on the taxiway centerline and noticed one vehicle close to the edge of the construction zone but within the confines. I decided to give ourselves a little more room and moved the aircraft off the centerline further away from the construction. Once past the area we heard the construction people call ground and state the aircraft that just passed had knocked a mirror or something of one of the pieces of equipment. I stopped the aircraft as we determined they meant us and coordinated with ground to return to the gate. We were issued instructions to return the way we had come but I elected different instructions I knew would keep us well clear of the zone on our return. There were no injuries on the ground or in the aircraft. There were no NOTAMS restricting taxiway K. The aircraft sustained minor damage to the tip of the right scimitar.

Original NASA ASRS Text

Title: B737 flight crew reported a collision with an airport construction vehicle.

Narrative: Flight pushed from Gate at DCA. All preflight checklists; briefings and airport diagrams were discussed and reviewed prior to pushback including the construction on Taxiway P. Taxi instructions were issued by Ground to 19 via K and hold short of Runway 15. While passing the Construction Zone on P the actual marked Work Zone also covered the infield space between P and K with construction vehicles spread throughout the enclosed area. I was taxiing the aircraft between 10 to 15 knots on the taxiway centerline and noticed one vehicle close to the edge of the Construction Zone but within the confines. I decided to give ourselves a little more room and moved the aircraft off the centerline further away from the construction. Once past the area we heard the Construction People call Ground and state the aircraft that just passed had knocked a mirror or something of one of the pieces of equipment. I stopped the aircraft as we determined they meant us and coordinated with Ground to return to the gate. We were issued instructions to return the way we had come but I elected different instructions I knew would keep us well clear of the zone on our return. There were no injuries on the ground or in the aircraft. There were no NOTAMS restricting Taxiway K. The aircraft sustained minor damage to the tip of the right scimitar.

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.