# SDR ASAA2020090853139

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 5, 2020
- Submitted: September 9, 2020
- Operation: Air carrier
- Aircraft: [N486AS](https://openairdocs.org/aircraft/N486AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44107
- Aircraft time: 19,356 hours, 6,183 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Switch
- Part number: 5727571
- Condition: Inoperative
- Location: Rt Ecs Overtemp
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020090853139

## Discrepancy

DURING "AFTER START" PROCEDURE RT PACK LIGHT ILLUMINATED ON MASTER CAUTION RECALL, EXTINGUISHED ON MASTER CAUTION RESET.  GROUNDED - YES.  REPLACED TURBINE INLET OVERHEAT SWITCH, PER AMM 21-51-41 AND OPS CHECKED GOOD PER TSR 709929.  CLEARS MEL 21-32B, PLACARDS REMOVED.  NO CONFIG CHANGES MADE.  SEAMC JOE NOTIFIED.

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