# SDR ASAA2015100813419

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 8, 2015
- Submitted: October 12, 2015
- Operation: Air carrier
- Aircraft: [N579AS](https://openairdocs.org/aircraft/N579AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35187
- Aircraft time: 32,971 hours, 9,889 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Indicator
- Part number: 162BL903
- Part serial: 07028646
- Condition: Failed
- Location: A/C Supply Duct
- Part time: 32,975 hours, 9,889 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015100813419

## Discrepancy

AIR CONDITIONER SUPPLY DUCT TEMP GAUGE BACKLIGHTING SEEMS DIM, POSSIBLY 1 OF 2 BULBS BURNED OUT.  ACFT GROUNDED.  REPLACED CABIN TEMPERATURE INDICATOR, REF MM 21-61-32-2 C/B OPEN & CLOSED, OPS NORMAL.

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