SDR DALA2023112209637

Service difficulty report · Valve · Boeing 737932ER

Difficulty date: November 22, 2023
Submitted: November 22, 2023
Operation: Air carrier
Aircraft: N837DN
Make and model: Boeing 737932ER
Aircraft serial: 31948
Aircraft time: 28,034 hours, 10,847 cycles
System (JASC): 2130 · Cabin Pressure Control System
Part: Valve
Condition: Inoperative
Location: Unknown
Stage of operation: DE
How discovered: O
Nature of condition: O
Precautionary procedure: K

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

What was found

SHIP 3837 -DE/PRESS- DECLARED EMERGENCY DUE TO CABIN ALTITUDE WARNING AT TOP OF DESCENT. CORRECTIVE ACTION: PERFORMED SINGLE PACK CONFIDENCE CHECK. NO TROUBLE FOUND. REACTIVATED LEFT PACK. REPLACED COCKPIT TRIM AIR VALVE. OPS CHECKS GOOD.