# SDR ASAA2020031332414

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 11, 2020
- Submitted: March 13, 2020
- Operation: Air carrier
- Aircraft: [N536AS](https://openairdocs.org/aircraft/N536AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35203
- Aircraft time: 31,618 hours, 9,019 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020031332414

## Discrepancy

DURING CLIMBOUT THROUGH 16,000 RT PACK CAUTION LIGHT ILLUMINATED. ACCOMPLISHED QRH PROCEDURE & PACK LIGHT WENT OUT BUT REILLUMINATED AFTER 1 MIN. REACCOMPLISHED QRH PROCEDURE WITH HIGHER TEMP INCREASE WITH SAME RESULT. TURNED RT PACK OFF & CLOSED ISOLATION VALVE WITH RT PACK TEMP AT 60 DEG. C. TEMP COOLED AT CRUISE, PACK RESET , WITH RT PACK OFF. GROUNDED - YES. RT PACK INSPECTED - NO DEFEECTS - ZTC'S NO FAULTS - RAN RT PACK OP'S NORMAL.

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