# SDR AALA20010823

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2001
- Submitted: June 5, 2001
- Operation: Air carrier
- Aircraft: [N468AA](https://openairdocs.org/aircraft/N468AA), registered now
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 49598
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 21172803
- Condition: Defective
- Location: Cabin Pressure
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: G
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20010823

## Discrepancy

TUL - FLT 1704 - EN ROUTE ORD-EWR, AT 33,000 FEET, CREW REPORTED DROP IN ALTITUDE TO 10,000 FEET.  DEPLOYED OXYGEN MASKS, AND LANDED EWR WITHOUT FURTHER INCIDENT.  FERRIED AIRCRAFT TUL.  REPLACED NR 1 CABIN PRESSURE CONTROLLER.  SYSTEM GROUND CHECKED NORMAL OPERATION.  (M)

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