# SDR MALA030232

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2003
- Submitted: April 10, 2003
- Operation: Air carrier
- Aircraft: [N535XJ](https://openairdocs.org/aircraft/N535XJ), registered now
- Make and model: Bac AVRO146RJ85A
- Aircraft serial: E2371
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Seal
- Part number: 7063250
- Condition: Damaged
- Location: Nr 2 A/C Pack
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MALA030232

## Discrepancy

DURING FLIGHT, NR 2 PACK VALVE INDICATES OPEN WHEN SELECTED CLOSED.  VALVE CURRENTLY ON MEL.  ALSO RECIRC CAN BE SELECTED TO RECIRC WITH ONLY 1 PACK RUNNING.  A LOUD POPPING SOUND FROM REAR OF A/C.  AIR RETURN TO MSP.  MAINTENANCE REMOVED AND REPLACED PERI-SEALS ON NR 2 PACK VALVE (P/N 706-3-250).  OPS CHECK AND LEAK CHECK GOOD.

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