# SDR UPS03840423

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2003
- Submitted: April 14, 2003
- Operation: Air carrier
- Aircraft: N705UP
- Make and model: Doug DC-8-71F
- Registry model: [Doug DC-8-71F](https://openairdocs.org/model/douglas-dc-8-71f) (OpenAirDocs)
- Aircraft serial: 45949
- Engine: Ge CFM56*
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Compressor
- Condition: Stalled
- Location: Nr 3 Engine
- Stage of operation: DE
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS03840423

## Discrepancy

NR 3 ENGINE COMPRESSOR STALL IFSD AT FL350 WHEN POWER WAS REDUCED FROM 85 TO 77 N & CONTINUED TO STALL IN DESCENT WHEN POWER WAS REDUCED BELOW 72N NR 3 ENG SHUTDOWN IN FLIGHT DUE TO CONTINUED COMPRESSOR STALLS IN LEVEL FLIGHT WITHOUT MOVING THROTTLE.  REMOVED AND REPLACED NR 3 ENG IAW MAINT TC 9071 6 STEP 1-4(82586) RIGGED VSV & VBV PER TC 9071 7(09326) BAD FROM STOCK MEC PARTS ON ORDER (99610) BOROSCOPED NR 3 HPT AND LPT BOTH LOW AND HIGH PER MM 72-00-00, CKS OK ON ALL STAGES.

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