# SDR AALA202204192130

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2022
- Submitted: April 19, 2022
- Operation: Air carrier
- Aircraft: [N429AN](https://openairdocs.org/aircraft/N429AN), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 10403
- Aircraft time: 4,156 hours, 1,042 cycles
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Sensor
- Part number: C20464001MT
- Condition: Defective
- Location: Zone 700 - Gears
- Stage of operation: CR
- How discovered: V
- Nature of condition: M
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202204192130

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: 3 HOURS 20 MIN INTO FLIGHT, LEVEL CRUISE ALT. 30,000FT. ECAM BRAKES HOT. ON WHEEL PAGE BRAKE 3 TEMP BETWEEN 350? ? 550? ALL OTHER TEMPS 20?. DESCENDED TO 18,000 FT. SLOWED TO 210 KNOTS PERFORMED ECAM PROCEDURE. TEMP ON BRAKE 3 IMMEDIATELY RETURNED TO 20? UPON GEAR EXTENSION. RETRACTED GEAR, CLIMBED, CONTINUED FLIGHT WITH ALL NORMAL INDICATIONS. MAINTENANCE REPLACED THE #3 BRAKE TEMPERATURE SENSOR AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 32-47-15.

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