# SDR AALA201707219003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2017
- Submitted: July 21, 2017
- Operation: Air carrier
- Aircraft: [N186US](https://openairdocs.org/aircraft/N186US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1701
- Aircraft time: 52,694 hours, 19,784 cycles
- System (JASC): [7500 · Engine Bleed Air System](https://openairdocs.org/jasc/7500)
- Part: Hose
- Part number: 1817M21G01
- Condition: Chafed
- Location: Rt Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201707219003

## Discrepancy

DURING TAKE OFF AT MAX POWER, ENGINE POWER WAS EQUAL. AT 200 FT AGL  RT MOTOR ROLLED BACK TO 60% N1. ANY CLIMB MODE CREATED A 30% N1 SPLIT.  VISUAL APPROACH AND VISUAL DOWNWIND WITH AUTOTHROTTLE OFF,  COULD KEEP THE THRUST SYMMETRICAL. IMMEDIATELY AFTER TAKEOFF,  RIGHT ENGINE THRUST ROLLED BACK 35-PERCENT.  DECLARED AN EMERGENCY AND LANDED  WITHOUT INCIDENT. FOUND PS3 SENSE HOSE WITH CHAFED WITH A HOLE. FOUND CHAFING AGAINST LOWER STARTER DUCT. REPLACED THE HOSE IAW AMM 72-00-00-200-026-A.  ACCOMPLISHED ACCEL AND POWER ASSURANCE CHECKS IAW AMM.

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