# SDR ASAA201805224725

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 20, 2018
- Submitted: May 22, 2018
- Operation: Air carrier
- Aircraft: [N448AS](https://openairdocs.org/aircraft/N448AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36356
- Aircraft time: 8,572 hours, 2,895 cycles
- System (JASC): [2160 · Cabin Temperature Control System](https://openairdocs.org/jasc/2160)
- Part: Ecs
- Condition: Malfunctioned
- Stage of operation: CR
- 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/ASAA201805224725

## Discrepancy

FA REPORTED WERE UNABLE TO COOL ROWS 6 - 16 INFLIGHT, UNTIL THE LAST HOUR OF FLIGHT.  ACFT GROUNDED.  NO HISTORY LAST 60 DAYS.  PFTC FAULT HISTORY LAST LEG SHOW R: 21-51123, L: 21-51123 & 21-51117. ALL FAULTS SHOW AS INTERMITTENT,  COUNT 1 & FAULT STATE.   RECOVERED.  IAW  FIM'S 21-62 TASK 890, & 21-62 TASK 893, ACCOMPLISHED INITIAL EVALUATION IAW FIM 21-62 TASK 801.  BOTH PFTC'S SHOW GROUND TEST COMPLETE PASSED. GROUND VERIFICATION SUCCESSFUL IAW FIM 21-62 TASK 890, & 21-62 TASK 893.

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