# SDR UIEA2017121302399

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 12, 2017
- Submitted: December 18, 2017
- Operation: Air carrier
- Aircraft: [N1321A](https://openairdocs.org/aircraft/N1321A), registered now
- Make and model: Boeing 767306
- Aircraft serial: 27957
- Aircraft time: 81,422 hours, 18,782 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Circuit Card
- Part number: 285T009311
- Part serial: D02523
- Condition: Malfunctioned
- Location: A/C Pack
- Stage of operation: CR
- How discovered: V
- Nature of condition: L, O, S
- Precautionary procedure: K, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2017121302399

## Discrepancy

R PACK OH EICAS MESSAGE DURING CRUISE WHILE LEVELED OFF AT FL 350.PACK SWITCH DESELECTED "PACK OFF".  R & R THE CIRCUIT CARD IAW AMM 20-10-01 & 21--61-03.

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