Service difficulty report · Panel · Boeing 7377H4

Difficulty date
March 31, 2022
Submitted
May 2, 2022
Operation
Air carrier
Aircraft
N475WN
Make and model
Boeing 7377H4
Aircraft serial
32474
Aircraft time
59,744 hours, 35,276 cycles
Part
Panel
Condition
Missing
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

PASSENGER CABIN FLOOR PANEL; 221BF; AFT OUTBOARD CORNER IS MISSING. / [01] IDENTIFIED PANEL MATERIAL IAW SRM 53-00-50-0I-1 FIG 2 TABLE 2.<BR>FOUND DAMAGE TO BE OUT OF ALLOWABLE LIMITS IAW SRM 53-00-50-1A-1 PARA 4F.<BR>DAMAGE WILL BE REPAIRED IAW SRM 53-00-50-2R-6.<BR>REMOVED 7EA THROUGH INSERTS TO FACILITATE REPAIR IAW SRM 53-00-50-2R-6 PARA 3B.<BR>REMOVED DAMAGED SKIN AND CORE AROUND AFT O/B CORNER; CLEANED REPAIR AREA IAW SRM 53-00-50-2R-6 PARA 3C-E.;[02] VALIDATED APPLICABILITY OF SRM 53-00-50-2R-6.;[03] INSPECTED AND VERIFIED CORRECTIVE ACTIONS 1 AND 2. OKAY TO PROCEED PER SRM 53-00-50-2R-6.;[04] FABRICATED CORE PLUG OUT OF BMS 8-124 CL4 TY5 GR5 LOT#1283769; AND FABRICATED UPPER SURFACE REPAIR PLIES OUT OF BMS 9-3 ST 1581 LOT#1475360-2 IAW SRM 53-00-50-2R-6 PAR 4F. OK TO INSTALL.;[05] VERIFIED CORRECTIVE ACTION 4<BR><BR>OK TO INSTALL CORE PLUG AND REPAIR PLIES;[06] INSTALLED REPAIR PARTS USING BMS 8-201 TY IV LOT#1486456-1; AND BMS 5-28 TY 19 LOT#AK1KP5968K; VACUUM BAGGED; CHECKED FOR LEAKS USING PRESSURE GAGE ID:ATS2583 S/N:5432766772 IAW SRM 53-00-50-2R-6 PAR 3G(1);H(1).;[07] VERIFIED CORRECTIVE ACTION 6;[08] CURED REPAIR WITH THERMOMETER ID:ATS2208 S/N:43300740WS; UNBAGGED AND SANDED CORE PLUG SMOOTH TO SURFACE; FABRICATED LOWER SURFACE REPAIR PLIES<BR>FROM BMS 9-3H2 LOT#1475360-2 IAW SRM 53-00-50-2R-6 PARA 3I-K.<BR>OK TO INSTALL;

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