# SDR CALA2026032714869

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2026
- Submitted: March 27, 2026
- Operation: Air carrier
- Aircraft: [N39416](https://openairdocs.org/aircraft/N39416), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 37093
- Aircraft time: 56,584 hours, 20,202 cycles
- System (JASC): [2840 · Fuel Indicating System](https://openairdocs.org/jasc/2840)
- Part: Probe
- Part number: 202000202
- Part serial: 10356
- Condition: Faulty
- Location: Zone 600 Fuel
- Part time: 56,581 hours, 20,201 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026032714869

## Discrepancy

CREW REPORTED #2 TANK DROPPED 500 LBS MORE THAT #1 TANK IN A 9 MINUTE TIME LINE CREATING A SECOND INBALANCE CONDITIONACP FQIS IBFLIGHT FAULTS AND FOUND TANK2 DEGRAD ACC LEG 00 ATA 28-41208 COUNT 01 COMPENSATOR DATA BAD ADDED PICTURE REQUEST MEL 2806B FOR #2 TANK FUEL INDICATION ISSUE AFTER CLEARING THIS MEL  PLZ RETURN PRE-FABRICATED BUSSING PLUG JUMPER HARNESS TO DFWMM TO RETURN TO STOCK.PLACED ON MEL PERFORMED NO.2 FQIS DRY RESISTANCE AND CAPACITANCE CHECK: FOUND F15,F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,F11,F12 FQIS TANK UNITS OUT OF TOLERANCE REF AMM 28-41-21-710-801 REMOVED AND REPLACED NO.2 FQIS TANK UNITS F15,F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,F11,F12 REF AMM 28-41-21 REQUEST CDCCL VERIFICATION NO.2 FQIS F15,F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,F11,F12 TANK UNITS INSTALLATION PROCEDURE REF AMM 28-41-21-400-801 PER CDCCL REQUIREMENTS, VERIFIED PROPER INSTALLATION OF THE NO.2 FQIS F15,F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,F11,F12 TANK UNITS. REF AMM 28-41-21-400-801. NO.2 FQIS F15 TANK UNIT

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