# SDR ASAA2017033020301

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2017
- Submitted: April 3, 2017
- Operation: Air carrier
- Aircraft: [N440AS](https://openairdocs.org/aircraft/N440AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41705
- Aircraft time: 13,666 hours, 4,544 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Warning Light
- Condition: False Activation
- Location: Ram Air Door
- Stage of operation: CR
- 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/ASAA2017033020301

## Discrepancy

RIGHT RAM AIR DOOR FULL OPEN LIGHT ILLUMINATED CONTINUOUSLY DURING FLIGHT.  ACFT GROUNDED.  IAW FIM 21-51 TASK 803, THE INLET AND EXIT BITE SHOWED NO FAULTS.  THE PACK TEMP CONTROL BITE SHOWED NO FAULTS.  INSPECTED THE HEAT EXCHANGER INLETS AND FOUND NO BLOCKAGE.  PERFORMED FIM 21-51 TASK 803 STEPS 5-11. THE RIGHT RAM AIR DOOR OPEN LIGHT EXTINGUISHED IN AIR MODE WITH FLAPS RETRACTED AND  INLET/EXIT CYCLED TOWARDS CLOSED.

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