Air carrier flight crew reported they rejected a takeoff at lax when the tower controller cancelled ...

Narrative:

During a normal take-off roll going through approximately 85 knots tower gave direction to reject the take-off; 'take-off clearance is cancelled; abort take-off.' at which time the captain rejected the take-off; uneventfully. As the take-off was rejected at approximately 85-90 knots we cleared the runway; taxied to a gate and maintenance inspected the aircraft. We were cleared by maintenance and resumed operations. During the maintenance inspection as we waited at the gate the captain contacted the tower and we were informed that their airport surface detection equipment ground surveillance radar had sounded an alarm in the tower which they were compelled to address by calling for us to reject the take-off. Tower informed us that no visual conflict was noticed but the alarm had to be followed. No other deviation or aircraft issue was noticed therefore we decided to continue operations.

Original NASA ASRS Text

Title: Air Carrier flight crew reported they rejected a takeoff at LAX when the Tower Controller cancelled takeoff clearance and called abort. The crew reported the ATC ground surveillance radar had sounded a false alarm.

Narrative: During a normal take-off roll going through approximately 85 knots tower gave direction to reject the take-off; 'take-off clearance is cancelled; abort take-off.' At which time the Captain rejected the take-off; uneventfully. As the take-off was rejected at approximately 85-90 knots we cleared the runway; taxied to a gate and maintenance inspected the aircraft. We were cleared by maintenance and resumed operations. During the maintenance inspection as we waited at the gate the Captain contacted the tower and we were informed that their Airport Surface Detection Equipment ground surveillance radar had sounded an alarm in the tower which they were compelled to address by calling for us to reject the take-off. Tower informed us that no visual conflict was noticed but the alarm had to be followed. No other deviation or aircraft issue was noticed therefore we decided to continue operations.

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.

Attributes
ACN	1334690
Time
Date	201602
Local Time Of Day	0601-1200
Place
Locale Reference	LAX.Airport
State Reference	CA
Aircraft 1
Make Model Name	Large Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	ATC Issue All Types

Air carrier flight crew reported they rejected a takeoff at lax when the tower controller cancelled takeoff clearance and called abort. The crew reported the ATC ground surveillance radar had sounded a false alarm.