# SDR 99ZZZX3466

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 2, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N408MC](https://openairdocs.org/aircraft/N408MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29261
- System (JASC): [7810 · Engine Collector/Tailpipe/Nozzle](https://openairdocs.org/jasc/7810)
- Part: Nozzle
- Part number: 314U210057
- Condition: Cracked
- Location: Nr 3 Engine
- Part time: 1,777 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX3466

## Discrepancy

EXHAUST SLEEVE CRACKED AT AFT CIRCUMFERENTIAL SEAM WELD.  NR 3 ENGINE, 11 O'CLOCK POSITION 10 INCH LENGTH AND SECOND CRACK 3 O'CLOCK POSITION 1.50 INCH LENGTH.  AFTER REMOVAL, FOUND SMALL 1.50 INCH CRACK INSIDE ON BULKHEAD.  ITEM REPLACED.  (X)

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