# SDR ASAA11510785

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 11, 2011
- Submitted: December 13, 2011
- Operation: Air carrier
- Aircraft: [N566AS](https://openairdocs.org/aircraft/N566AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35181
- Aircraft time: 18,821 hours, 5,847 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Unknown
- Condition: Malfunctioned
- Location: Ac Bay
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA11510785

## Discrepancy

LEFT PACK LIGHT ILLUMINATED AFTER ENGINE START RESET WITH MASTER CAUTION RESET.  TROUBLESHOT LEFT PACK SYSTEM PER FIM 21 53 00 810 AND BITE CHECKED SYSTEM PER AMM 21 61 00.  RAN PACK USEING APU.  PACK LIGHT NEVER ILLUMINATED.  COULD NOT DUPLICATE DISCREPANCY.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.