SDR AALA2018080869047

Service difficulty report · Tachometer · Airbus A319112

Difficulty date: August 3, 2018
Submitted: August 8, 2018
Operation: Air carrier
Aircraft: N770UW
Make and model: Airbus A319112
Aircraft serial: 1393
Aircraft time: 46,267 hours, 30,055 cycles
System (JASC): 3240 · Landing Gear Brake System
Part: Tachometer
Part number: C20105000
Part serial: 1168
Condition: Faulted
Location: Mlg
Part time: 46,261 hours, 30,052 cycles
Stage of operation: CL
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

AFTER TAKEOFF, AN ECAM SHOWED AUTO BRAKE FAULT, BRAKE RELEASED. WHEN THE LANDING GEAR WAS EXTENDED FOR LANDING, FAULT EXTINGUISHED. MAINTENANCE REPLACED THE NR 3 WHEEL TACHOMETER IAW AMM 32-42-57-0401 PERFORMED FUNCTIONAL CHECK IAW AMM 32-42-00-720-002.

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