SDR CALA2026061016984

Service difficulty report · Floorbeam · Boeing 7379

Difficulty date: June 9, 2026
Submitted: June 10, 2026
Operation: Air carrier
Aircraft: N37521
Make and model: Boeing 7379
Aircraft serial: 64497
Aircraft time: 18,129 hours, 6,039 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: 147A5676Y5
Condition: Corroded
Location: Zone 200
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

CORROSION ON AFT WET AREA FLOOR SUPPORT AT STA 950 BTW LBL 26 TO LBL 50, REQUIRE EVALUATION. REMOVED AND REPLACED FLOOR SUPPORT ON AFT WET AREA STA 950 BTW LBL 26 TO LBL 50, APPLIED ALODINE AND PRIMER IAW DWG 147A5676 REV A, DWG 147A5650 REV: A. AND SRM 51-40-02-0G-0 , 51-40-05-0G-0, 53-70-51-1A-1, 53-70-51-0I AND AMM 51-21-72-370 -804 ,51-21-41-370-802. . I

More about the Boeing 737-9