Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
August 10, 2021
Submitted
August 16, 2021
Operation
Air carrier
Aircraft
N479WN
Make and model
Boeing 7377H4
Aircraft serial
33990
Aircraft time
57,970 hours, 34,611 cycles
Part
Floor Panel
Condition
Damaged
Location
Cabin
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

A22-06; PASSENGER CABIN FLOOR PANEL 242AF; UPPER SURFACE NEAR AFT EDGE HAS DEEP SCORE DAMAGING FACESHEET ; / [01] EVALUATED DAMAGE ON FLOOR BOARD 242AF AND FOUND DAMAGE ON AFT EDGE CORNER AS DAMAGE ON FWD EDGE CORNERS AS WELL. DAMAGE IS REPAIRABLE IAW SRM 53-00-50-2R-4 REV. 73 PARA. 1<BR><BR>REMOVED DAMAGED SKIN AND CORE AND PREPPED AREAS FOR REPAIR IAW SRM 53-00-50-2R-4 REV. 73 PARA. 3. (A.-J.) AND SRM 53-00-50-2R-0 REV. 73<BR><BR>VERIFIED REPAIR MATERIALS AS BMS 9-3 TY H3 FIBERGLASS (A24484); EPOCAST 50A1 RESIN (A54258); AND BMS5-28 TY 19 POTTING COMPOUND (A47287) IAW SRM 53-00-50-2R-4 REV. 73 TABLE 201<BR><BR>REQUESTING 'OKAY TO BOND'; [02] VERIFIED STEP 1 AND OK TO BOND; [03] BONDED REPAIR PLIES TO CORNERS OF FLOOR PANEL 242AF AND CURED @ 150F FOR 3HRS; THERMOMETER #30347 DUE 4/29/22; BOND IS SATISFACTORY/ NO DEFECTS IAW SRM 53-00-50-2R-4 REV. 73 PARA. 3 (K.-M.) AND SRM 53-00-50-2R-0 REV. 73 FIG. 210<BR><BR>REMOVED AND REPLACED 6EA. INSERTS TO FACILITATE MAINTENANCE IAW BAC5085 SECT. 8.4.4.2.<BR>INSERTS (A47027)<BR>ADHESIVE (A51754); [04] REPAIRED 3EA. CORNERS ON FLOOR PANEL 242AF IAW SRM 53-00-50-2R-4 REV. 73 AND SRM 53-00-50-2R-0 REV. 73 AND INSTALLED INSERTS IAW BAC5085 SECT. 8.4.4.2.; [05] VERIFIED STEPS 3-4; [06] AUDITED

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