# SDR DHL98717003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 17, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N717DH](https://openairdocs.org/aircraft/N717DH), registered now
- Make and model: Boeing 727-23
- Registry model: [Boeing 727-23](https://openairdocs.org/model/boeing-727-23) (OpenAirDocs)
- Aircraft serial: 19389
- Engine: Pwa JT8D7
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: P & D Valve
- Part number: 9148810
- Condition: Failed
- Location: Nr 1 Engine
- 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/DHL98717003

## Discrepancy

AFTER TAKEOFF FROM MIA AT CLIMB, THRUST SETTING  THE CREW NOTICED A VIBRATION AND NR 1 ENGINE EPR WAS FLUCTUATING BETWEEN 1.75 AND 1.5 FUEL FLOW AND N2 FLUCTUATING.  WHEN THRUST REDUCED THE VIBRATION WAS MINIMAL.  FLIGHT RETURNED TO MIA.  REMOVED AND REPLACED P AND D VALVE AND DRAINED MOISTURE TRAP.

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