SDR SWAA2022012078110

Service difficulty report · Floorbeam · Boeing

Difficulty date: April 11, 2017
Submitted: January 21, 2022
Operation: Air carrier
Make and model: Boeing
Aircraft time: 63,084 hours, 36,472 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Aft Cargo Bay
Stage of operation: IN
How discovered: 9
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 STRAP LOC BS727D+5 AT LEVEL STR25R TO STR 25L AT AFT CARGO COMPARTMENT / REPLACED STRAP (TEE ASSY) LOC BS727D+5' AT LEVEL STR 25R TO STR 25L AT AFT CARGO COMPARTMENT IAW B737-700 SRM 51-10-02 ITEM 9 AND SRM 51-40-02 DWG # 146A7500 REV A AND EVALUATE ALLOWABLE DAMAGE LIMITS AND SELECT CORRECTIVE ACTION FOR CORROSION DUE TO NOT FOUND ALLOWABLE DAMAGE IN SRM