Service difficulty report · Tachometer · Airbus A321231

Difficulty date
November 6, 2014
Submitted
November 7, 2014
Operation
Air carrier
Aircraft
N578UW
Make and model
Airbus A321231
Aircraft serial
6035
Aircraft time
2,165 hours, 885 cycles
Part
Tachometer
Part number
C201050002
Part serial
68060
Condition
Intermittent
Location
Nr 1
Part time
2,165 hours, 885 cycles
Stage of operation
AP
How discovered
O
Nature of condition
J
Precautionary procedure
L

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

What was found

DURING LG EXTENSION WITH AUTO BRAKES LOW SELECTED, ECAM MSG BRAKES RELEASED. OCCURRED AT 1300 FT AFE, EXECUTED GO AROUND. MSG DID NOT REAPPEAR AT NEXT LG EXTENSION. TROUBLE SHOOTING IAW TSM 32-42-00-810-817A HAD FAULT CODE. USING OHM & MEGGAR WIRING CHECKED GOOD. SUPPLEMENTAL MANUAL INFO REPLACED NR 1 TACH AN SHAFT. TESTED GOOD IAW MM 32-42-57. ACCOMPLISHED SATISFACTORY FUNCTIONAL CHECK OF TACKS 1/3 IAW MM 32-42-00-720-003A.

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