SDR AALA202304053082

Service difficulty report · Door Seal · Boeing 777323ER

Difficulty date: January 22, 2023
Submitted: April 5, 2023
Operation: Air carrier
Aircraft: N730AN
Make and model: Boeing 777323ER
Aircraft serial: 31554
Aircraft time: 34,804 hours, 4,085 cycles
System (JASC): 5230 · Cargo/Baggage Doors
Part: Door Seal
Condition: Misinstalled
Location: Zone 100 - Fuse
Stage of operation: CL
How discovered: O
Nature of condition: Z
Precautionary procedure: I, D, A, G

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

What was found

AIRCRAFT WAS GROUNDED: DURING CLIMB ABOVE FL150, PILOTS NOTICED THE CABIN ALTITUDE CONTINUING TO CLIMB PAST 9500FT. CABIN ALTITUDE REACHED 12600FT. PILOTS FOLLOWED THE CABIN ALTITUDE PROCEDURE AND RETURNED TO LAND. MASKS WERE DEPLOYED. **SUPPLEMENTAL REPORT FOR AALA202301253082: REINSTALLED BULK CARGO DOOR SEAL PER AMM 52-09-04. ACCOMPLISHED SATISFACTORY CABIN PRESSURE TEST PER AMM 05-51-24-720-80** (CLOSED)