# SDR DL72S990667

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N531DA](https://openairdocs.org/aircraft/N531DA), registered now
- Make and model: Boeing 727232
- Aircraft serial: 21814
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Clamp
- Condition: Broken
- Location: Ac Bay
- Stage of operation: TX
- Nature of condition: B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DL72S990667

## Discrepancy

AFTER PUSHBACK, HEARD LOUD BANG AND EXPERIENCED SMOKE IN CABIN. FOUND CLAMP OFF DUCT IN AREA OF FLOW MULT REF IPC 21-10-0-4 ONLY AFFECTS AIR FROM APU.  PUT APU AIR TO MCO AND PLACARD.

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