# SDR FDEA201808172067

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2018
- Submitted: August 21, 2018
- Operation: Air carrier
- Aircraft: [N994FD](https://openairdocs.org/aircraft/N994FD), registered now
- Make and model: Boeing 757-23A
- Registry model: [Boeing 757-23A](https://openairdocs.org/model/boeing-757-23a) (OpenAirDocs)
- Aircraft serial: 25490
- Aircraft time: 45,094 hours, 15,044 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Controller
- Part number: 6259469
- Part serial: 046C4967
- Condition: Malfunctioned
- Location: Rt A/C Pack Temp
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201808172067

## Discrepancy

AT FL 340, NOTICED EARS POPPING.  LOOKED AT THE CABIN ALTITUDE INDICATOR & IT INDICATED NORMAL,  THE RATE GAUGE FLUCTUATED.  AFTER A FEW MINUTES,  THE RIGHT PACK INDICATED INOPERATIVE.  DESCENDED TO 9000 FT.  REMOVED AND REPLACED THE RIGHT PACK TEMP CONTROLLER, AND THE RIGHT  FLOW CONTROL CARD AS A PRECAUTION IAW AMM 21-51-14-4, AND 21-51-09-4, OPS CHECKED NORMAL.

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