Service difficulty report · Floor Panel · Boeing 7378

Difficulty date
September 8, 2023
Submitted
September 26, 2023
Operation
Air carrier
Aircraft
N8711Q
Make and model
Boeing 7378
Aircraft serial
36979
Aircraft time
13,381 hours, 5,848 cycles
Part
Floor Panel
Part number
UNKNOWN
Condition
Debonded
Location
Zn 200 Fus Top
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 241FF IS DISBONDED ON FWD INBOARD EDGE DOT 050-002<[01] CLEANED FLOORBOARD IAW SRM 53-00-50-2R-0 REPAIR GENERAL PARAGRAPH 5 A (1);[02] C/W STEP 1 OF EA 23-153-02750-WIP1. NO EXPOSED WIRING. STEP 1 COMPLETE;[03] BONDTEST IAW B737 NDT PART 4; 51-00-05. TOOL#40082; DUE 10OCT23.<BR>UT IAW B737 NDT PART 4; 51-00-03. NO DEFECTS NOTED. TOOL#40084; DUE 01AUG24. REF STEP 2 OF EA 23-153-02750-WIP1;[04] FOUND MULTIPLE AREAS OF DAMAGE TO UPPER SURFACE AND IS REPAIRABLE IAW SRM 53-00-50-2R-1 AND EA 23-153-02750-WIP1 STEP 3<BR><BR>PREPPED AREAS FOR REPAIR AND APPLIED POTTING COMPOUND IAW SRM 53-00-50-2R-1 PARAGRAPH 3A -3J. POTTING COMPOUND EPOCAST1619 (A201242).<BR><BR>VERIFIED BOND MATERIALS AS FIBERGLASS BMS9-3 (A184337); RESIN EPOCAST50A1 (A197641) IAW SRM 53-00-50-2R-1 TABLE 201<BR><BR>NEED OK TO BOND;[05] VERIFIED STEPS 1 THRU 4 C/W AND OK TO BOND GRANTED;[06] BONDED REPAIR IAW SRM 53-00-50-2R-1 PARAGRAPH 3K-M AND EA 23-153-02750-WIP1 STEP 3. STEP 3 COMPLETE.;[07] REFER TO FAULT TTG8Q00NB8FV WHERE EA 23-153-02750 WAS ADDED AS A SUBTASK.;[08] VERIFIED STEPS 6-7.<BR>AUDIT C/W.

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