Service difficulty report · Proximity Sensor · Airbus A320232

Difficulty date
November 1, 2023
Submitted
November 3, 2023
Operation
Air carrier
Aircraft
N428UA
Make and model
Airbus A320232
Aircraft serial
523
Aircraft time
88,968 hours, 35,210 cycles
Part
Proximity Sensor
Part number
UNKNOWN
Condition
Faulty
Location
Mlg
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

L/G NOT UPLOCKEDWITH SHOCK ABSORBERFAULT DURING DEBREIF PILOT STATED IT WAS THE NLG SHOCK ABSORBER FAULT. ADDING POST FLIGHT REPORT REMOVED UNSERVICEABLE PROX SENSOR 24GA AND INSTALLED SERVICEABLE RECOMMEND FOLLOWING TSM 32-31-00-810-868-A SUSPECT SENSOR 24GA OR 25GA, REQUIRES LGCIU BITE CHECK TO ONE PER AMM 32-31-73-400-005-A OPS CHECKS AND BITE CHECKS GOOD. CONFIRM SEALANT REQUIRED ON NUTS AND SCREW ENDS. ADD EMP:U172529,U167026,U381122 FOUND FLIGHT/GROUND SENSING BRACKET WITH EXCESSIVE PLAY. DISCOVERED BOLT THAT SECURES CASING TO PIN ON STRUT WAS MISSING. PICTURES ATTACHED SHOWING POSITION HELD IN MOST FWD/AFT POSITION. T/S PER TSM 32-31-00-810-868A NLG SCHOCK ABSORBER (LG WILL NOT RETRACT).FOUND NO SET SCREW AT FITTING LEG ASSY CAUSING EXCESSIV E PLAY.REPLACED PROX SENSORS 24GA & 25GA.STRUT DIMENSION GOOD. PERFORMED GEAR SWING ALL OPERATIONAL CHECKS GOOD.

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