# SDR DLL13950117

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 11, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N788DL](https://openairdocs.org/aircraft/N788DL), registered now
- Make and model: Lkheed 10113851
- Aircraft serial: 193A1141
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Duct
- Condition: Separated
- Location: Ac Compartment
- Stage of operation: CR
- Nature of condition: O
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DLL13950117

## Discrepancy

DURING CRUISE, A LOUD BANG WAS HEARD UNDERNEATH CABIN FLOOR AREA, AND AN IMMEDIATE 1000 FT/MIN CABIN ALTITUDE RISE.  STARTED EMERGENCY DESCENT, REGAINED CABIN PRESSURE AT 15,000 FEET.  RETURNED TO SJU.  FOUND DUCT SEPARATED FROM NR 3 ACM. RESECURED DUCT OPERATION NORMAL.

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