# SDR ANCF20260126002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2026
- Submitted: January 28, 2026
- Operation: Air carrier
- Aircraft: [N557AV](https://openairdocs.org/aircraft/N557AV), registered now
- Make and model: Airbus A319-115
- Registry model: [Airbus A319-115](https://openairdocs.org/model/airbus-a319-115) (OpenAirDocs)
- Aircraft serial: 5057
- Aircraft time: 39,011 hours, 21,815 cycles
- Engine: Cfmint CFM565B4
- Engine time: 11,033 hours, 6,465 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Vibration
- Location: Nr 1
- Stage of operation: TO
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ANCF20260126002

## Discrepancy

NR 1 ENGINE HIGH VIBRATION DURING TAKEOFF BEFORE 80 KTS.  SECOND TIME IAW TSM 77-00-00-810-864-A, CHECKED WIRING, CONNECTORS, & RECEPTACLES BTWN THE NR 1 VIBRATION SENSOR (4002EV) TO EVMU (2EV) THE TRF VIBRATION SENSOR (4003EV) TO THE EVMU (2EV) IAW ASM 77-32-02,  CHECK FOR DAMAGED PINS OR CONNECTOR OXIDATION PERFORMED.  NO DAMAGE FOUND IAW 77-32-34-710-040-B OPS CHK OF EVMU THROUGH CFDS FOR ADVISORY INDICATION ON ECAM PERFORMED, TESTED OK IAW 72-21-00-210-009-A.  INSPECTION OF FAN ROTOR BLADES,  NO DAMAGE FOUND.   IAW 79-00-00-281-002-A CHKD THE ELECT MASTER CHIP DETECTOR (EMCD) FOR PARTICLES PERFORMED, NO PARTICLES FOUND.  IAW 72-21-00-290-003-A BORESCOPE INSP OF BOOSTER ROTOR BLADES, STAGES 2, 3, 4, & 5 THROUGH THE BOOSTER INLET & BORESCOPE PORTS SO3 & SO5 PERFORMED, NO DAMAGE FOUND.  IAW 72-54-00-290-006-A INSP OF LPT STAGE 4 BLADES PERFORMED, NO DAMAGE FOUND.  IAW AMM  31-36-00-710-016-A, DOWNLOADED PROCEDURE OF THE FDIMU/DMU DATA ON A PCMCIA CARD PERFORMED.  FOLLOWING TSM 77-00-00-810-864-A, STEP 4. A. (1) (D), NR 1 ENG ACCELEROMETER SWITCH MODE TO TRF CONFIG PERFORMED.  IAW AMM 71-00-00-710-003-B, ENGINE AUTOMATIC START PERFORMED & N1 INDICATION VIBRATION CHECKED FROM IDLE TO TO/GA THE VIBRATION VALUES FOUND WITHIN LIMITS.

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