# SDR ASAA2020021963209

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 16, 2020
- Submitted: February 20, 2020
- Operation: Air carrier
- Aircraft: [N559AS](https://openairdocs.org/aircraft/N559AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35178
- Aircraft time: 49,872 hours, 14,759 cycles
- Engine: Cfmint CFM567B273
- Engine time: 46,449 hours, 13,772 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Out Of Limits
- Location: Right
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020021963209

## Discrepancy

GE DIAGNOSTICS REPORTS THE #2 ENGINE EXPERIENCED AN EGT EXCEEDANCE DURING TAKEOFF THAT MAY HAVE EXCEEDED THE TRANSIENT AREA LIMITS. PEAK EGT RECORDED ON REPORT 06  WAS 960 DEGREES DURING TAKEOFF (FLIGHT PHASE 4.) #2 ENGINE TREND DATA ALSO SHOWS A SUDDEN SHIFT IN VSV POSITION DIVERGENCE ON LAST TAKE OFF. GROUNDED - YES. PERFORMED B737-800 FIM 71-06 TASK 805 PARA A-F SEC (1)- (3) A NO FAULTS FOUND. NO LEAKS FOUND DURING PNEUMATIC LEAK CHECK. PERFORMED TEST 5 POWER ASSURANCE CHECKED REF B737-800 AMM 71-00-00-700-813-F00 TEST SATISFACTORY. ACCOMPLISHED HP COMPRESSOR BLADE BOROSCOPE INSPECTION REF AMM 72-00-00-200-817-F00 FOUND MULTIPLE BLADES OUT OF LIMITS IN STAGES 5, 8, 9. REPLACED #2 ENGINE PER T/C 78471000 & 78471001.

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