Service difficulty report · Sidewall Support · Boeing 737

Difficulty date
August 12, 2022
Submitted
September 7, 2022
Operation
Air carrier
Aircraft
N8648A
Make and model
Boeing 737
Aircraft serial
42531
Aircraft time
27,511 hours, 12,724 cycles
Part
Sidewall Support
Part number
143A7501188
Condition
Corroded
Location
Fwd 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 FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 24 BS 500A+2; BS 500A+6; BS 500A+11; BS 500A+15; BS 500B+7; BS 500B+11. / [01] EVALUATED CORROSION AT ALL LOCATIONS; FOUND DEEPEST LOCATION TO BE AT BS 500B+7'' REMOVED 0.020' IN A AREA OF 1'X1' ORIGINAL THICKNESS 0.040' FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING ATS TOOL ID ATS2678 EXP 4/2023. FLOOR TO SIDEWALL SUPPORT WILL BE REMOVED AND REPLACED FROM BS 500A TO BS 500I ON FAULT TTG8Q00E5E11;[02] VERIFIED CORRECTIVE ACTION 1<BR><BR>VERIFIED MEASUREMENTS TABLE