# SDR 20000713SH027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 1999
- Submitted: July 13, 2000
- Operation: Air carrier
- Aircraft: N409EV
- Make and model: Boeing 747-45E
- Registry model: [Boeing 747-45E](https://openairdocs.org/model/boeing-747-45e) (OpenAirDocs)
- Aircraft serial: 28097
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Duct
- Part number: D193334
- Part serial: 05033
- Condition: Damaged
- Location: A/C Bay
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/20000713SH027

## Discrepancy

AFTER TAKEOFF, CAPTAIN REPORTED BLEED DUCT LEAK C.  BLEED DUCT LEAK L AND PACK 1 MESSAGE SHOWN.  AIRCRAFT AIR TURN-BACK.  GROUND MAINTENANCE FOUND PACK 1 CATALYTER OZONE CONVERTER AND TUBE DAMAGED.  (X)

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