Student pilot and instructor reported a runway excursion during first solo flight.

Attributes
ACN	1578582
Time
Date	201809
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	Landing
Route In Use	None
Flight Plan	None
Person 1
Function	Pilot Flying
Qualification	Flight Crew Student
Experience	Flight Crew Last 90 Days 34 Flight Crew Total 35 Flight Crew Type 35
Person 2
Function	Instructor
Qualification	Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Commercial
Experience	Flight Crew Last 90 Days 140 Flight Crew Total 533
Events
Anomaly	Ground Event / Encounter Loss Of Aircraft Control Ground Event / Encounter Object Ground Excursion Runway Ground Excursion Taxiway

Narrative:

This is my student pilot first solo; I practiced left closed traffic runway 27L. After landing everything is good enough. I thought the aircraft has been slowed down enough; then I want to off runway 27L at taxiway B to save space for the flowing traffic. But the velocity of the plane still fast; the taxi radius of the track is larger. Finally I skid off the runway and taxiway; rush into the grass area and hit one of the sign of the airport.

Original NASA ASRS Text

Title: Student pilot and Instructor reported a runway excursion during first solo flight.

Narrative: This is my student pilot first SOLO; I practiced left closed traffic runway 27L. After landing everything is good enough. I thought the aircraft has been slowed down enough; then I want to off runway 27L at taxiway B to save space for the flowing traffic. But the velocity of the plane still fast; the taxi radius of the track is larger. Finally I skid off the runway and taxiway; rush into the grass area and hit one of the sign of the airport.

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.