# SDR ASAA2022102640488

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 2022
- Submitted: October 28, 2022
- Operation: Air carrier
- Aircraft: [N536AS](https://openairdocs.org/aircraft/N536AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35203
- Aircraft time: 39,538 hours, 11,270 cycles
- System (JASC): [2840 · Fuel Indicating System](https://openairdocs.org/jasc/2840)
- Part: Probe
- Part number: 202000310
- Condition: Failed
- Location: Rt Wing Tank
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022102640488

## Discrepancy

WITH CENTER TANK PUMPS ON, RIGHT FUEL QUANTITY IS BEING BURNED AT ABOUT 150 LBS/HR CAUSING A FUEL IMBALANCE OF ABOUT 600 LBS. BEFORE CENTER TANK IS EMPTY. FUEL BURNS WERE NORMAL INDICATING NO LEAK. LEFT AND CENTER TANKS DID NOT SHOW A CORRESPONDING INCREASE AS THE RIGHT TANK WAS DEPLETED. GROUNDED - YES. REMOVED TANK UNITS 1,2,7,8,9,10. REPLACED #2 MAIN TANK UNITS 1,2,7,8,9,10 INSTALLATION TEST PASSES REF B737-800 AMM 28-41-21-400-801. (REF ASA LOGPAGE 60394051)

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