# SDR 2026FA0000598

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2026
- Submitted: July 21, 2026
- Operation: General aviation
- Aircraft: N624MF
- Make and model: Cessna 208B
- Registry model: [Cessna 208B](https://openairdocs.org/model/cessna-208b) (OpenAirDocs)
- Aircraft serial: 208B5124
- Aircraft time: 2,628 hours, 3,007 cycles
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Tube
- Part number: 265600126
- Condition: Leaking
- Location: Zone 400
- Part time: 2,628 hours, 3,007 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000598

## Discrepancy

DURING THE PILOT POST FLIGHT INSPECTION, A STRONG ODOR OF JET FUEL WAS PRESENT AFTER OPENING THE LEFT COWL. THE TOP OF THE AIR CONDITIONER CONDENSER HOUSING, LOCATED AT THE BOTTOM OF THE LEFT COWL, WAS WET ON THE TOP WITH FUEL. A LEAK WAS DISCOVERED DRIPPING FUEL FROM A UNION ASSOCIATED WITH THE FUEL ECOLOGY TANK UNIQUE TO THE CARAVAN EX MODELS. THE MECHANIC SEPARATED THE UNION, INSPECTED THE FLARE AND RETORQUED THE FITTINGS. DURING A LEAK CHECK WITH THE FUEL BOOST PUMP OPERATING, SMALL BUBBLES AND FUEL DRIPS RESUMED FROM THE SAME LOCATION. THE TUBE WAS REMOVED FROM THE AIRFRAME AND THE MECHANIC DISCOVERED 2 SMALL LONGITUDINAL CRACKS ABOVE THE FLARE UNDERNEATH THE AREA OF THE MS20819-4 SLEEVE. IT WAS DETERMINED THAT THE FUEL WAS LEAKING THROUGH THE SIDEWALL OF THE TUBE AND OUT THE BACK OF THE B-NUT. THE TUBE, SLEEVE, AND AN FITTING WERE ALL STAINLESS STEEL AND APPROPRIATELY INSTALLED WITH NO EXTERNAL DAMAGE.

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