# SDR CA990715036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 25, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Make and model: Doug DC-9-32
- Registry model: [Doug DC-9-32](https://openairdocs.org/model/mcdonnell-douglas-dc-9-32) (OpenAirDocs)
- Engine: Pwa JT8D7A
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Connector
- Condition: Loose
- Location: Air Distribution
- Stage of operation: CR
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA990715036

## Discrepancy

(CAN) AT FL 330 AFTER SELECTION OF AIRFOIL ANTI-ICE TAIL ANTI-ICE WITH ENG ANTI-ICE ON, CABIN ALT CLIMBED TO 10,000 FEET.  AIRFOIL ANT-ICE SELECTED OFF AND DESCENT INITIATED.  AT 29,000 FEET,CABIN STARTED A 500 FOOT CLIMB RATE.  FOUND DUCT CONNECTOR ADRIFT AT LT AIRCYCLE MACHINE DISCHARGE AFT SIDE OF HEAT EXCHANGER.  CLAMP INSTALLED SYSTEM SERVICED.

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