# SDR A6WA200740286

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 2007
- Submitted: June 29, 2007
- Operation: Air carrier
- Aircraft: [N453AW](https://openairdocs.org/aircraft/N453AW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7838
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Shutoff Valve
- Condition: Malfunctioned
- Location: Lt A/C Pack
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/A6WA200740286

## Discrepancy

LT PACK OVERPRESSURE ON CLIMB-OUT OF 5000 FT, RESET PACK UPON CLIMBING LT PACK OVERTEMP MESSAGE.  AIR RETURN TO ORF.  LANDING WEIGHT = 41,300.  MAX BTMS = 4.  REMOVED AND REPLACED LT PRSOV IAW 21-51-43, OPS AND LEAK CHECK GOOD.  AIRCRAFT LANDING WEIGHT WITHIN LIMITS, NO FURTHER ACTION REQUIRED.  (M)

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