Service difficulty report · Floor Panel · Boeing 7378H4

Difficulty date
March 27, 2022
Submitted
April 21, 2022
Operation
Air carrier
Aircraft
N8628A
Make and model
Boeing 7378H4
Aircraft serial
42384
Aircraft time
27,196 hours, 12,448 cycles
Part
Floor Panel
Part number
221AF
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 221AF; HAS SEVERAL CORRODED INSERTS / REMOVED SEVERAL CORRODED INSERTS IAW SRM 53-00-50-2R-0 PARA 5. B. (2) <BR><BR>FOUND CORE DAMAGE AT EDGE AT INSERT LOCATION P23. 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-10. <BR><BR>REMOVED CORE AT EDGE AT INSERT LOCATION P2; WITH NO SKIN DAMAGE OR MOISTURE NOTED AND CLEANED REPAIR AREA. ALL IAW SRM 53-00-50-2R-10 PARA 3A-D.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-10 PARA 3.E-F.;NSTALLED (9 EA.) THROUGH INSERTS USING ADHESIVE BMS 5-107 LOT # AK0KP9324K; THEN SET TO CURE USING THERMOMETER ID: ATS2199 S/N: 180707172 IAW SRM 53-00-50-2R-0 PARA 5. S. (1) AND DWG 141A5810-728;[09] CURED 9EA THRU INSERTS IAW SRM 53-00-50-2R-0 PARA5.S. WHILE CURING INSERTS FOUND UPPER FACE SHEET PLIES MISSING AT CORNER BY P23 REMOVED 1EA INSERT; FABRICATED REPAIR PLIES FROM BMS9-3 1475360-2 IAW SRM 53-00-50-2R-1 PARA3.K.INSTALLED REPAIR PLIES USING BMS 8-201 LOT#1485950-1 AND SCALE ID:ATS2276/SN:P1662209 TRIMMED EXCESS MATERIAL FROM EDGES SMOOTH WITH PANEL; LOCATED INSERT HOLES; INSTALLED AND CURED 1EA THRU INSERT USING BMS 5-107 ADHESIVE LOT# AK0KB4341A WITH DWG 141A5810 SHEET-728 USING THERMOMETER ATS2402 S/N 190204418 IAW SRM 53-00-50-2R-1 PARA 3.N;

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