# SDR IPXA2019062843834

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 28, 2019
- Submitted: July 3, 2019
- Operation: Air carrier
- Aircraft: [N475UP](https://openairdocs.org/aircraft/N475UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 28845
- Aircraft time: 17,644 hours, 12,307 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Duct
- Part number: AS150528A0032
- Condition: Disconnected
- Location: Ac Bay
- 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/IPXA2019062843834

## Discrepancy

INSPECTION TYPE:N/A AT FLT LVL 320 LTN PACK OFF GOT EICAS MSG CAB ALT WARN. RAN CHECKLIST, LT PACK TO ON, MESSAGE GO AWAY. DEFERRED AS PER MEL 21-51-1.  **SUPPLEMENTAL SDR** CREW DECLARED EMERGENCY - DONNED O2 MASKS AND DESCENDED TO FL100. MX INSPECTED RT ECS BAY FOUND DUCT PN AS1505-28A0032 REF IPC 21-51-15-01 DISCONNECTED.  INSTALLED AND LEAK CK OK.  C/W RT PACK BITE CK OK AMM 21-51-00-745-159.  PLACARD REMOVED DEFERRAL CLEARED.

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