As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3954 -PRESS/DE- DECLARED EMERGENCY INTO ATL DUE TO CABIN ALTITUDE WARNING ALERT AT TOP OF DESCENT W/THROTTLES AT IDLE. CORRECTIVE ACTION: MAINTENANCE REMOVED AND INSTALLED FLUSH VALVE PER B737 AMM 32-32. PERFORMED LEFT PACK CONFIDENCE CHECK PER B737 AMM 21-00.