# SDR 2001UALA00788

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 2001
- Submitted: June 21, 2001
- Operation: Air carrier
- Aircraft: N610UA
- Make and model: Boeing 767222
- Aircraft serial: 21871
- Aircraft time: 70,677 hours, 17,600 cycles
- Engine: Pwa JT9D7R4D
- System (JASC): [7530 · Compressor Bleed Control](https://openairdocs.org/jasc/7530)
- Part: Control Unit
- Condition: Out Of Rig
- Location: Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: M
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2001UALA00788

## Discrepancy

FUEL QTY FOR WINGS PLUS-MINUS 1700 LBS BETWEEN GAUGES.  VARIED THROUGHOUT FLIGHT.  FMC QTY APPEARS ACCURATE. SUPPLEMENTAL DATA UPDATE ENGINE WAS REPLACED DUE TO OVERTEMP.  DURING ENGINE PRE-REPAIR RUN, FOUND ENGINE VANE BLEED CONTROL(EVBC) WAS OUT OF TRIM.  EVBC WILL BE OVERHAULED

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