Service difficulty report · Floorbeam · Boeing 737890

Difficulty date
December 9, 2024
Submitted
January 8, 2025
Operation
Air carrier
Aircraft
N512AS
Make and model
Boeing 737890
Aircraft serial
39043
Aircraft time
56,501 hours, 16,822 cycles
Part
Floorbeam
Part number
147A550611
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

MAIN CABIN. TOP OF FLOOR STRUCTURE STA 986 LBL27-RBL-34, CORROSION AROUND FASTENER HOLES. GROUNDED - YES. REMOVED CORROSION ORIG .150, REMAIN .125 LOSS OF .025. FOUND OUT OF LIMITS IAW B737 800 SRM 53-70-51. ACCOPLISHED REPAIR IAW B737 800 SRM 53-70-51 2R-4 REP 4. REMOVED AND REINSTALLED ADJACENT, INTERCOSTALS, SUPPORT ANGLE AND FITTINGS IAW B737 800 SRM 53-70-51 AND B737 800 SRM 51-40-02.