# SDR DALA2025012700639

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2025
- Submitted: January 27, 2025
- Operation: Air carrier
- Aircraft: [N351NW](https://openairdocs.org/aircraft/N351NW), registered now
- Make and model: Airbus A320-212
- Registry model: [Airbus A320-212](https://openairdocs.org/model/airbus-industrie-a320-212) (OpenAirDocs)
- Aircraft serial: 766
- Aircraft time: 78,177 hours, 36,697 cycles
- System (JASC): [3620 · Pneumatic Indicating System](https://openairdocs.org/jasc/3620)
- Part: Sense Line
- Condition: Loose
- Location: Nr 2 Engine
- Stage of operation: TO
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2025012700639

## Discrepancy

SHIP 3251 DISC: REJECTED TAKEOFF (THRUST ADVANCED, 0 KTS). DURING ICE CLEARING PROCEDURE (70% N1) AIR ENG 2 BLEED ABNORM PR, ABOVE 50% N1, ENG BLEED DROPS TO 0 PSI. C/A: POST FLT REPORT,PRESS REG-V 4001HA2 OR, SOL 10HA2 OR SENSE LINE 36-11-00. INSPECTED SENSE LINE FOUND LOOSE RESECURED AND PERFORMED HIGH POWER RUN DUPLECATED ISSUE AT 50% N1. WHEN HP CLOSE DUCT PRESS DROP TO 20 PSI WHERE #1 ENG DUCT PRESS SHOWING 45 PSI . REF A320 TSM 36-11-00-810-810 FPUND PRV TO PYLON AND PYLON TO HARD LINE THREAD BAD. REMOVED AND REPLACED #2 ENG SENSE LINES FROM PRV TO PYLON INTERFACE PER A320 AMM 36-11-49. REQUIRES OPS AND LEAK TEST. PERFORMED HIGH POWER RUNS ALL INDACITIONS NORMAL LEAK AND OPS CKS GOOD PER A320 AMM 36-11. (LP: 6707242)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.