SDR AALA202608037820

Service difficulty report · Floorbeam · Boeing 7378

Difficulty date: July 7, 2026
Submitted: August 3, 2026
Operation: Air carrier
Aircraft: N304RB
Make and model: Boeing 7378
Aircraft serial: 44463
Aircraft time: 20,964 hours, 7,906 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Zone 100
Stage of operation: IN
How discovered: V
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

AIRCRAFT IN BASE MAINTENANCE: FILFORM CORROSION ON FLOORBEAM AT STATION 947, LBL53, AT LAV MOUNT. MAINTENANCE REMOVED DAMAGED MATERIAL AND REPLACED WITH A REENFORCEMENT SPLICE DOUBLER IAW B737-MAX8 SRM 53-70-51-2R-5 REPAIR 5 & EA 376976.

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