SDR 3EJA20250904004

Service difficulty report · Battery · Cessna 525B

Difficulty date: August 27, 2025
Submitted: September 4, 2025
Operation: Air carrier
Aircraft: N744JS
Make and model: Cessna 525B
Aircraft serial: 525B0304
Aircraft time: 5,574 hours, 5,238 cycles
System (JASC): 2432 · Battery/Charger System
Part: Battery
Part number: S35974
Part serial: 41375195
Condition: Failed
Location: Zone 200
Part time: 162 hours, 111 cycles
Stage of operation: CL
How discovered: V
Nature of condition: J
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING THE CLIMB AT APPROXIMATELY 17,000 FEET, THE “BATT FAULT” MASTER WARNING ILLUMINATED. REMOVED BATTERY PN S3597-4 SN 41375195, CONNECTOR PN MS25182-2 SN 275750, TEMP SENSOR PN S3597-9 SN 40008583 AND INSTALLED NEW BATTERY PN S3597-4 SN 41463217, CONNECTOR PN MS2518-2 SN 275829, TEMP SENSOR PN S3597-9

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