As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: REAR FLIGHT ATTENDANTS AND PASSENGERS SMELLED A STRONG ELECTRIC/BATTERY BURNING SMELL IN THE REAR OF THE AIRCRAFT DURING DESCENT. SMELL DISAPPEARED PRIOR TO LANDING. MAINTENANCE FOUND ROW 22F POWER PORTS WIRING LOOSE RESCUE WIREING AND LOOSE GROUNDING WIRE OPS CK OK NO ODER AT THIS TIME REF J26L00021001 FOR SIGN OFF OF SOL EVENT.