Service difficulty report · Floor Panel · Boeing 7377H4

Difficulty date
September 15, 2022
Submitted
September 27, 2022
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 7377H4
Aircraft serial
33855
Aircraft time
57,460 hours, 34,246 cycles
Part
Floor Panel
Condition
Out Of Position
Location
Fuselage
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

2EA FLOOR PANEL INSERTS REQUIRE REPOSITIONING TO ACCOMMODATE FLOOR BEAM REPAIR FLOOR PANEL 221EF / [01] GENERAL NOTE: REFERENCE EA 22-153-02676-WIP5 STEP2 ON FAULT TTG8Q00E9MAJ FOR ALLOWANCE TO REPOSITION (MOVE) INSERT LOCATIONS AS REQUIRED.;[02] IDENTIFIED MATERIAL IAW SRM 53-00-50-0I-1 TABLE 2 FIG 2.<BR><BR>REPAIRS TO BE ACCOMPLISHED PER SRM 53-00-50-2R-6 AND EA 22-153-02676-WIP5 STEP 2<BR><BR>REMOVED 2EA THROUGH INSERTS TO FACILITATE REPAIRS IAW SRM 53-00-50-2R-6 PARA 3B<BR><BR>CLEANED REPAIR AREA THEN FABRICATED UPPER SURFACE REPAIR PLIES FROM BMS9-3 ST 1581 LOT#1493221-1 AND CORE PLUG FROM BMS8-124 TYPE 5 GRADE 9 CLASS 4 LOT#1287137. OK TO INSTALL IAW SRM 53-00-50-2R-6 PARA 3E-G AND EA 22-153-02676-WIP5 STEP 2;[03] VALIDATED APPLICABILITY OF SRM 53-00-50-2R-6.;[04] INSPECTED AND VERIFIED CORRECTIVE ACTIONS 1; 2 AND 3.<BR><BR>VERIFIED MEASUREMENTS TABLE.;[05] INSTALLED REPAIR PLIES USING BMS8-201 TYPE 3 LOT#AK2EP8210K AND CORE PLUG USING BMS5-28 TYPE 19 LOT#AK2DP3091K; VACUUM BAGGED; CHECKED FOR LEAKS; LEAK CHECKED GOOD USING VACUUM GAUGE ATS2438 CAL DUE DATE 03/2023 IAW SRM 53-00-50-2R-6 PARA 3F-H AND EA 22-153-02676-WIP5 STEP 2;[06] VERIFIED CORRECTIVE ACTION ITEM 5;10] INSTALLED REPAIR PLIES USING BMS 8-201 LOT#AK2EP8210K; VACUUM BAGGED; LEAK CHECK GOOD WITH VACUUM GAUGE ID:ATS2438 DUE:03/23 IAW SRM 53-00-50-2R-6 PARA 3.K(1)&L(1).;[18] RII VERIFIED SUB STEP 1; LOCATED NEW FLOOR PANEL HOLES/INSERTS PRIOR TO DRILL UP. OK TO DRILL.

More about the Boeing 737-7H4