# SDR ASAA2019012327900

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2019
- Submitted: January 24, 2019
- Operation: Air carrier
- Aircraft: [N448AS](https://openairdocs.org/aircraft/N448AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36356
- Aircraft time: 11,317 hours, 3,764 cycles
- System (JASC): [2163 · Cabin Temperature Sensor](https://openairdocs.org/jasc/2163)
- Part: Filter
- Part number: 412A160514
- Condition: Dirty
- Location: Temp Sensor
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019012327900

## Discrepancy

ON TAXI OUT CONT CAB ZONE TEMP LIGHT ILLUMINATED. GROUNDED - YES. REF FIM 21-61-00, BOTH CONTROLLERS SHOW NO FAULTS. REF AMM 21-61-00, CLEANED CONTROL CABIN TEMP SENSOR FILTER. OPS TEST NORMAL. THIS CLEARS MEL 21-21G.

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