# SDR CA050308011

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2005
- Submitted: April 1, 2005
- Operation: General aviation
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft time: 31,657 hours
- Engine: Pwa JT8D219
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Failed
- Location: Nr 1
- Stage of operation: TO
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA050308011

## Discrepancy

(CAN) DURING TAKE-OFF THE CREW HEARD A LOUD BANG FOLLOWED BY A DROP IN N1 FROM 80 PERCENT TO 19 PERCENT ON THE NR 1 ENGINE.  AT 70 KNOTS FORWARD SPEED A REJECTED TAKE-OFF WAS INITIATED WITHOUT INCIDENT.  ON RETURN TO THE GATE, OIL PRESSURE DROPPED TO ZERO.  NR 1 ENGINE WAS REPLACED IAW TASK CARD 80UN-014 AND ENGINE RUN CARRIED OUT SERVICEABLE IAW TASK CARD 80EC-001AR1. AIRCRAFT WAS DISPATCHED AND NO FURTHER PROBLEM DURING SUBSEQUENT FLIGHT.  ENGINE WILL BE SHIPPED TO THE O/H FACILITY FOR TEARDOWN AND REPORT ISSUED.

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