# SDR ASAA2019022628301

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 2019
- Submitted: March 1, 2019
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36482
- Aircraft time: 38,120 hours, 11,375 cycles
- System (JASC): [2197 · Air Conditioning System Wiring](https://openairdocs.org/jasc/2197)
- Part: Wire
- Condition: Disconnected
- Location: Sensor Fan
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019022628301

## Discrepancy

FWD CAB TEMP CONTROL WILL NOT MANAGE CABIN TEMP. CABIN TEMP SPIKES HOT/COLD WITH SMALL INPUTS TO THE KNOB. PLACED IN THE OFF POSITION CABIN TEMP IS ACCEPTABLE. GROUNDED - YES. CONFIRMED FAULT, FWD PASS CABIN TEMP SENSOR FAN INOP. REMOVED CEILING PANEL, FOUND PLASTIC ZIP-TIE AT GD3858-AC PULLING A WIRE OUT. REMOVED ZIP-TIE & SECURED WIRE AT GD3858-AC REF B737-800 WDM 21-61-13, FAN NOW WORKS.

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