Service difficulty report · Throttle Switch · Boeing 737823

Difficulty date
March 12, 2019
Submitted
March 18, 2019
Operation
Air carrier
Aircraft
N914AN
Make and model
Boeing 737823
Aircraft serial
29515
Aircraft time
59,358 hours, 23,978 cycles
Part
Throttle Switch
Part number
254A115010
Part serial
AA059
Condition
Faulted
Stage of operation
LD
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

THE PILOT REPORTED THAT LANDING WITH THE FLAPS AT 30, AUTO BRAKES SET TO 3, AUTO BRAKES DISENGAGED ON THEIR OWN AT APPROXIMATELY 80 KIAS. THE NR 4 RIGHT OTBD TIRE FAILED. PERFORMED TIRE BURST INSPECTION IAW AMM 05-51-54 AND FLAT SPOTTED TIRE INSPECTION IAW AMM 05-51-16. FOUND ANTISKID / AUTOBRAKE CONT A+B PWR FAULT. THE AIRCRAFT WAS GROUNDED. MAINTENANCE REMOVED AND REPLACED A/T SWITCH PACK IAW AMM 76-94-02. ALL FAULTS CLEARED AND CHECKED NORMAL.