# SDR DHL96722006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 29, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N722DH](https://openairdocs.org/aircraft/N722DH), registered now
- Make and model: Boeing 727228
- Aircraft serial: 19861
- Engine: Pwa JT8D7
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Condition: Vibration
- Location: Nr 1
- Stage of operation: CL
- Nature of condition: E
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL96722006

## Discrepancy

MIDDLE FREQUENCY VIBRATION FELT IN THE NR 1 THRUST LEVER AT ALL POWER SETTINGS ABOVE 1.4 EPR DURING FLIGHT.  RETURNED TO DENVER.  PERFORMED ENGINE VIBRATION SURVEY ON WING PER MM 72-00 TEST 1, ENGINE WITHIN MANUAL LIMITS.  OK FOR CONT SERVICE.

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