# SDR CALA2026042415696

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2026
- Submitted: April 24, 2026
- Operation: Air carrier
- Aircraft: [N897UA](https://openairdocs.org/aircraft/N897UA), registered now
- Make and model: Airbus A319-132
- Registry model: [Airbus A319-132](https://openairdocs.org/model/airbus-a319-132) (OpenAirDocs)
- Aircraft serial: 3269
- Aircraft time: 48,092 hours, 29,460 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: EVT3454HC
- Part serial: 2245
- Condition: Faulted
- Location: Zone 200
- Part time: 18,946 hours, 9,174 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026042415696

## Discrepancy

AVIONIC VENT BLOWER FAN C/B (AD 10) POPPED ON 123VU PANEL.T/S POPPED BREAKER BY REMOVING AVIONICS VENT FAN 20HG CONNECTOR AND JUMPERING PINS D&E. BREAKER STAYED IN. CHECKED FOR 115VAC AT PINS J,K,&L. PIN L ONLY HAD 8VAC. WENT TO RELAY 8HQ ON THE 107VU PANEL AND FOUND HEAT DAMAGE AT TERMINAL L3. RELAY 8HQ, & RING TERMINAL FOR L3 NEEDS REPLACED & THE WIRING NEEDS TO BE EVALUATED TO DETERMINE THE EXTENT OF THE OVERHEAT DAMAGE. REF ASM 21-26-03 SCH 03, PAGE 14, WDM 21-26-02 PAGE 7 PER ESPM 20-53-21-02 DAMAGED WIRE NEEDS REMOVED AND RETERMINATED. ONCE THE DAMAGE IS REMOVED THE WIRE WILL BE TOO SHORT TO REACH THE RELAY. WIRE BUNDLE 2126-358QF14 NEEDS REPLACED WITH WIRE PART # ASNE0266QF14. REF AWM 21-26-02 PG7 WIRE IS ON AOG NOT ENOUGH IN STOCK AT ORD.   ALSO FAN IS ON AOG IN CASE IT IS BAD. ORDERED CONTACTS AND TERMINALS FOR WIRE BUNDLE REPLACEMENT AND ATTACHED TO WIRE BUNDLE LOCATION. LABELED WIRING AND REPLACED RELAY 8HQ. REINSTALLED CONTROL WIRES TO RELAY. REF ESPM 20-45-24-01, 20-48-25, 20-48-11-01 AWM 21-26-02 PG7

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