# SDR CALA2013111300831

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 13, 2013
- Submitted: November 13, 2013
- Operation: Air carrier
- Aircraft: [N41140](https://openairdocs.org/aircraft/N41140), registered now
- Make and model: Boeing 757224
- Aircraft serial: 30353
- Aircraft time: 57,427 hours, 12,137 cycles
- Engine: Rroyce RB211535E4B3
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Part number: RB211535E4B
- Part serial: RB211535E4B
- Condition: Power Loss
- Location: Nr 2
- Part time: 65,628 hours, 16,373 cycles
- Stage of operation: TO
- How discovered: O
- Nature of condition: R
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2013111300831

## Discrepancy

DURING TAKEOFF LOUD POP FROM RT ENGINE, N1 ROLLED BACK TO 100%, THEN RECOVERED.  ALL ENG INDICATIONS APPEARED NORMAL, BUT AIR RETURNED EWR AS PRECAUTION.  PERFORMED TEST 3 IP HP COMPRESSOR AIRFLOW CONTROL TEST IAW M/M 71-00-00-715-049-R03.  OPERATIONS CHECKED GOOD.

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