# SDR DALA2019022201123

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 20, 2019
- Submitted: February 22, 2019
- Operation: Air carrier
- Aircraft: N931DN
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53544
- Aircraft time: 45,058 hours, 30,075 cycles
- Engine: Iae V2525D5
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Vibration
- Location: Left
- Stage of operation: DE
- How discovered: O
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2019022201123

## Discrepancy

LEFT ENGINE VIBRATION HIGH, 4.9 INDICATION. VIBRATION RETURNED TO .6 10 MINUTES AFTER THROTTLE RETARDED TO IDLE. C/W GVI OF FAN BLADES. NO DAMAGE. ALSO UT TAP TEST OF FAN BLADES PERMD90AMM 71-00-00 984139. C/W T/S PER FIM 71-00 AND PERF ENGINE RUN AND VIBRATION SURVEY TEST IAW AMM 71-02-08. ENG VIB WITHIN LIMITS, OK FOR SERVICE. (LP# 4884723)

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