# SDR HALA20240820235

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2024
- Submitted: August 21, 2024
- Operation: Air carrier
- Aircraft: [N214HA](https://openairdocs.org/aircraft/N214HA), registered now
- Make and model: Airbus A321-271N
- Registry model: [Airbus A321-271N](https://openairdocs.org/model/airbus-a321-271n) (OpenAirDocs)
- Aircraft serial: 08157
- Aircraft time: 17,823 hours, 3,784 cycles
- System (JASC): [2200 · Auto Flight System](https://openairdocs.org/jasc/2200)
- Part: Bypass Valve
- Condition: Malfunctioned
- Location: Nr 2 Pack
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA20240820235

## Discrepancy

ATB - DUE TO ETOPS VERIICATION FLIGHT UNSATISFACTORY PLUS ISSUES WITH MULTIPLE ECAMS. PFR FAULT AIR PACK 2 REGUL FAULT ATA 21-61 CARRIED OUT TROUBLESHOOTING OF AIR PACK 2 IAW TSM 21-61-00-810-817-A. CARRIED OUT OPERATIONAL TEST OF PACK TEMP-CONTROL SYS IAW A321 AMM 21-61-00-710-001. P2 BY-PASS VALVE (30HH)FOUND FAULTY FOR REPLACEMENT. PERFORMED REPLACEMENT OF PACK 2 TURBINE BYPASS VALVE, IAW AMM 21-61-53-000-001-A AND 21-61-53-400-001-A.  SYSTEM OPS CHECKS GOOD.  OK TO CONTINUE.

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