SDR 2020F00047

Service difficulty report · Tire · Lear 55C

Difficulty date
November 14, 2019
Submitted
November 18, 2019
Operation
General aviation
Aircraft
N178AM
Make and model
Lear 55C
Aircraft serial
144
Aircraft time
14,470 hours, 10,466 cycles
System (JASC)
3244 · Tire
Part
Tire
Part number
178K431
Part serial
83553033
Condition
Failed
Location
Lt Mlg
Part time
86 hours, 61 cycles
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
C

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING A NORMAL TAKEOFF ROLL ON 19L AT KLAS ONE OF THE LEFT MAIN TIRES BLEW DUE TO A SUSPECTED ENCOUNTER WITH FOD AT APPROXIMATELY 105 KNOTS WITH A V1 TAKEOFF DECISION SPEED OF 136; THIS WAS ASSOCIATED WITH AN AUDIBLE "BANG". SHORTLY THEREAFTER THE AIRCRAFT BEGAN TO LOSE DIRECTIONAL CONTROL AND THE CAPTAIN ELECTED TO ABORT THE TAKEOFF. THIS SERIES OF EVENTS CAUSED THE REMAINING LEFT TIRE TO BLOW AND CAUSED THE LEFT WHEEL ASSEMBLIES AND BRAKES TO DRAG ON THE RUNWAY DURING THE ABORT DECELERATION AND STOP. THE AIRCRAFT REMAINED ON THE RUNWAY THE ENTIRE TIME. AFTER THE AIRCRAFT CAME TO A STOP ON RUNWAY 19L THE CREW PERFORMED A PRECAUTIONARY EVACUATION AND SHUTDOWN OF THE AIRCRAFT.

More about the Lear 55C