Service difficulty report · Crease Beam · Boeing 7378H4

Difficulty date
January 4, 2022
Submitted
January 31, 2022
Operation
Air carrier
Aircraft
N8623F
Make and model
Boeing 7378H4
Aircraft serial
36731
Aircraft time
27,330 hours, 12,353 cycles
Part
Crease Beam
Condition
Corroded
Location
Aft Galley
Stage of operation
UK
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

AFT GALLEY DOOR R-2 CREASE BEAM IS CORRODED. BS 975; WL208; RBL64. DOT 23 ; / [01] REMOVED CORROSION ON CREASE BEAM ANGLE IAW SRM 51-10-02-0G-0 ITEM 15; [02] EVALUATED ALLOWABLE LIMITS : ORIGINAL 'T' .080 REMAINING.060 LOSS .020 FOUND OUT OF LIMITS IAW SRM 53-70-15-1A-1 TOOL USED AAR UT # 36649 DUE 12/08/22; [03] VERIFIED STEPS 1 AND 2; [04] VERIFIED ITEMS 1;2; AND 3.<BR>BLEND OUT OF LIMITS; [05] REMOVED DAMAGE CREASE BEAM IAW SRM 51-40-02; [06] REMOVED ' L' ANGLE AT STA 992 RBL 64-48 TO FOM IAW SRM 51-40-02; [07] VERIFIED STEPS 5 AND 6; [08] VERIFIED NEW CREASE BEAM ANGLE P/N147A8540-8 TAG #WN3366 IAW DWG 147A8501 REV.-; [09] VERIFIED STEP 6 IS COMPLETE; [10] VERIFIED STEP 8; [11] LOCATED AND DRILL HOLES ON NEW CREASE BEAM IAW SRM 51-40-05-0G-0; [12] VERIFIED STEP 11; [13] VERIFIED STEP 11; [14] OK TO INSTALL; [15] INSTALLED CREASE BEAM IAW SRM 51-40-02 DWG 147A8501; [16] VERIFIED STEP 15; [17] VERIFIED STEP 15. OK TO INSTALL L ANGLE STEP 6.; [18] INSTALLED 'L' ANGLE IAW SRM 51-40-02 DWG 147A8501 REV .-; [19] APPLIED CORROSION INHIBITING COMPOUND CREASE BEAM IAW AMM 51-21-91-620-802; [20] VERIFIED STEPS 18 AND 19 ARE COMPLETE; [21] CORRECTED THICKNESS; [22] VERIRIFED CORRECTION; [23] UPDATED PARTS INFO; [24] VERIFIED STEPS 18 AND 19. AUDIT COMPLETE; [25] ADJUSTED PART NUMBER PN MEASURMENT TABLE; [26] VERIFIED P/N CORRECT ON MEASUREMENT TABLE

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