Service difficulty report · Floor Panel · Boeing 737

Difficulty date
March 27, 2022
Submitted
April 21, 2022
Operation
Air carrier
Aircraft
N8628A
Make and model
Boeing 737
Aircraft serial
42384
Aircraft time
27,196 hours, 12,448 cycles
Part
Floor Panel
Part number
222AF
Condition
Corroded
Location
Cabin Floor
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

PASSENGER CABIN FLOOR PANEL 222AF HAS SEVERAL CORRODED INSERTS / REMOVED (12 EA) CORRODED THROUGH INSERTS ALONG THE INBD AND AFT EDGES IAW SRM 53-00-50-2R-0 PARA 5. B. (2) FOUND DAMAGE ON TOP FACESHEET AT INSERT LOCATIONS P2; P3; P34 AND P35. DAMAGES IS OUT OF ALLOWABLE LIMITS IAW SRM 53-00-50-1A-1 PARA 4F. <BR>REPAIRS TO BE ACCOMPLISHED IAW SRM 53-00-50-2R-1. REMOVED DAMAGED FACE SHEET AT INSERT LOCATIONS P2; P3; P34 AND P35. AND REMOVED THE LOOSE PIECES OF CORE; CLEANED REPAIR AREA WITH NO CONTAMINATION NOTED IAW SRM 53-00-50-2R-1 PARA3. A-F.;[06] INSPECTED AND VERIFIED CORRECTIVE ACTION 5. OKAY TO APPLY POTTING COMPOUND PER SRM 53-00-50-2R-1 MIXED ;APPLIED THEN SET TO CURE BMS5-28 TY19 POTTING COMPOUND LOT# AK1KP5968K USING SCALE ATS2276/SN:P1662209 AND THERMOMETER ID:ATS2209/SN:43300739WS IAW SRM 53-00-50-2R-1 PARA 3.G-H.;[08] CURED POTTING COMPOUND SANDED SMOOTH WITH PANEL CLEANED REPAIR AREA AND FABRICATED REPAIR PLIES USING BMS9-3 LOT#1475360-2 IAW SRM 53-00-50-2R-1 PARA3.I-K.INSTALLED REPAIR PLIES USING BMS 8-201 LOT#1485950-1 AND SCALE ID:ATS2276/SN:P1662209 VACUUM BAGGED; LEAKED CHECKED GOOD AND CURED USING THERMOMETER ID:ATS2209/4300739WS IAW SRM 53-00-50-2R-1 PARA3.K1;L1;M1REMOVED VACUUM BAG; TRIMMED EXCESS MATERIAL FROM EDGES SMOOTH WITH PANEL; LOCATED INSERT HOLES; INSTALLED AND CURED 12 THRU INSERTS USING BMS 5-107 ADHESIVE LOT# AOKB4341A WITH DWG 141A5810 SHEET-01 USING THERMOMETER ATS2402 S/N 190204418 IAW SRM 53-00-50-2R-1 PARA 3.N