# SDR ASAA2023062443729

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 24, 2023
- Submitted: June 27, 2023
- Operation: Air carrier
- Aircraft: [N453AS](https://openairdocs.org/aircraft/N453AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36354
- Aircraft time: 35,350 hours, 11,121 cycles
- System (JASC): [7220 · Turbine Engine Air Inlet Section](https://openairdocs.org/jasc/7220)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: IN
- How discovered: O
- Nature of condition: E
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023062443729

## Discrepancy

PERFORMED ENG RUN VIB SURVEY AS REQUESTED BY TSR14495, #2 ENG WAS FOUND TO BE OUT OF VIB LIMITS AT 64% N1 IN REF TO AMM 71-00-00 TEST 7. GROUNDED - YES. SPINNER WEIGHTS MOVED AFTER COMPLETION OF TEST 7 AND AC ENG RUN TEST 7 PERFORMED AGAIN. HIGHEST VIB WAS 1.4 DURING RUN SEE TSR714496.

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