# SDR ASAA2017080821564

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 8, 2017
- Submitted: August 9, 2017
- Operation: Air carrier
- Aircraft: [N457AS](https://openairdocs.org/aircraft/N457AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36355
- Aircraft time: 14,062 hours, 4,657 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning Light
- Condition: False Activation
- Location: Lt A/C Pack
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017080821564

## Discrepancy

ON MASTER RECALL BOTH PACK LIGHTS CAME ON.  LEFT PACK NEW LIGHT ON.  ACFT GROUNDED.   ACCOMPLISHED LEFT RAM AIR INLET ACTUATOR, IAW FIM 851. NO DEFECTS NOTED. BOTH RT & LT HEAT EXCHANGER WASHES ALSO ACCOMPLISHED, IAW T/C 78121000.

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