# SDR AALA202509176203

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 31, 2025
- Submitted: September 17, 2025
- Operation: Air carrier
- Aircraft: [N171US](https://openairdocs.org/aircraft/N171US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1465
- Aircraft time: 78,468 hours, 30,390 cycles
- Engine: Cfmint CFM565B3P
- Engine time: 67,621 hours, 31,900 cycles
- System (JASC): [7297 · Turbine Engine System Wiring](https://openairdocs.org/jasc/7297)
- Part: Harness
- Part number: CA21100
- Part serial: YC378127C
- Condition: Chafed
- Location: Nr 2
- Part time: 21,601 hours, 9,041 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202509176203

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO PHX DUE TO THE FLIGHT CREW REPORTING THAT AN ENGINE 2 EGT OVER LIMIT ECAM MESSAGE DISPLAYED. THE FLIGHT CREW SHUT DOWN #2 ENGINE AS PER THE ECAM PROCEDURES. THE AIRCRAFT LANDED SAFELY AT PHX WHERE IT TAXIED TO THE GATE UNDER ITS OWN POWER. **SUPPLEMENTAL REPORT FOR AALA202509026203: MAINTENANCE ACCOMPLISHED TSM FOR EGT OVERLIMIT PER AMM 77-00-00-810-849-A. MAINTENANCE ACCOMPLISHED A BORESCOPE INSPECTION WITH WAS ACCOMPLISHED WITH NO DAMAGED NOTED. MAINTENANCE FOUND THE UPPER SECTOR PROBE AND EXTENSION LEADS (10:00 POSITION) MAKING CONTACT AND CHAFFED. AS A PREVENTATIVE MEASURE MAINTENANCE REPLACED THE FOLLOWING EGT INDICATION ITEMS PER AMM 77-21-10: UPPER EXTENSION LEAD, LOWER EXTENSION LEAD (AALA202509173193), MAIN JUNCTION BOX / COUPLING (AALA202509171579), THERMOCOUPLE WIRING HARNESS TC316 / 3TC (AALA202509172712) AND THERMOCOUPLE WIRING HARNESS TC315 / 2TC (AALA202509171009). A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED PER AMM 73-29-00-710-040-B-02 ** (CLOSED)

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