# SDR 9WGA2023063045201

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 2023
- Submitted: July 5, 2023
- Operation: Air carrier
- Aircraft: [N452SN](https://openairdocs.org/aircraft/N452SN), registered now
- Make and model: Boeing 747-48E
- Registry model: [Boeing 747-48E](https://openairdocs.org/model/boeing-747-48e) (OpenAirDocs)
- Aircraft serial: 25452
- Aircraft time: 121,669 hours, 20,225 cycles
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CL
- How discovered: O
- Nature of condition: M
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9WGA2023063045201

## Discrepancy

DISCREPANCY: AIR RETURN DUE TO MULTIPLE FAILURES. #4 ENGINE OVERHEAT ON TAKE-OFF. CORRECTIVE ACTION: PERFORMED INSPECTION FOR OVERHEAT INDICATIONS IAW AMM 72-00-00-286-064-00. REFERENCED AUTO SNAP SHOT, ALL PARAMETERS WITHIN LIMITS. TRANSFERRED ENGINE 4 TO WATCH CARRY OVER 25405, 20 CYCLES DUE.

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