# SDR CAL950140

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 20, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N11985
- Make and model: Airbus A300 B4-103
- Registry model: [Airbus A300 B4-103](https://openairdocs.org/model/airbus-industrie-a300-b4-103) (OpenAirDocs)
- Aircraft serial: 119
- Engine: Ge CF650C2
- System (JASC): [7530 · Compressor Bleed Control](https://openairdocs.org/jasc/7530)
- Part: Duct
- Part number: 1555M23G01
- Condition: Ruptured
- Location: Nr 1 Eng
- Part time: 32,290 hours
- Stage of operation: TO
- Nature of condition: J
- Precautionary procedure: C, D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CAL950140

## Discrepancy

FLT NR 288 - EWR - TAKEOFF WAS ABORTED AT 60 KNOTS AFTER THE NR 1 ENGINE N1 DROPPED AND THE EGT ROSE TO 950 DEGREES.  MAINTENANCE FOUND THE NR 1 ENGINE 14TH STAGE DUCT BLOWN.  THE 14TH STAGE DUCT WAS REMOVED AND REPLACED.  THE NR 1 ENGINE WAS RUN AT HIGH POWER WITH ALL PARAMETERS AND INDICATIONS CHECKING NORMAL.  S/D - THE FAILURE WAS DUE TO HIGH VIBRATORY STRESSES IN THE 14TH STAGE CDP AIR TUBE RESULTING FROM THE 14TH STAGE AIR BLEED TUBE.  THE CF6-50 FLEET HAS BEEN MODIFIED BY REMOVING THE 14TH STAGE AIR BLEED TUBE PER GE SERVICE BULLETIN 75-071.  (M)

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