# SDR UPS03440288

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2003
- Submitted: March 19, 2003
- Operation: Air carrier
- Aircraft: [N526UP](https://openairdocs.org/aircraft/N526UP), registered now
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 21937
- Engine: Pwa JT9D7A
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Part number: JT97Q
- Condition: Failed
- Location: Nr 4
- Stage of operation: TO
- How discovered: O
- Nature of condition: C, E
- Precautionary procedure: E, J, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS03440288

## Discrepancy

DURING T/O AND CLIMB, TOWER NOTICED AND NOTIFIED FLT 6703 THAT SMOKE WAS TRAILING FROM NR 4 ENGINE.  AT 6500 FEET CREW REPORTED A BANG AND ASSOCIATED ROLL BACK OF N1/N2.  CREW FOLLOWED SEVERE ENGINE DAMAGE CKLIST.  FUEL DUMPED AND AIRCRAFT 526 ON FLT 6703 RETURNED TO PHL.  REMOVED AND REPLACED NR 4 ENG ASSY IAW MM TASK CARD 5000 PG 1-27.

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