Service difficulty report · Structure · Boeing 7378H4

Difficulty date
May 24, 2022
Submitted
June 10, 2022
Operation
Air carrier
Aircraft
N8630B
Make and model
Boeing 7378H4
Aircraft serial
42521
Aircraft time
27,694 hours, 12,732 cycles
Part
Structure
Part number
147A550429
Condition
Corroded
Location
Floor
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

CORROSION ON UPPER CHORD OF FLOORBEAM BS 947 RBL24-26 WL 208 / REMOVED DAMAGED FLANGES OF THE BS947 FLOOR BEAM UPPER CHORD LBL40.5-RBL50 I.A.W SRM 53-70-51-2R-5 REPAIR 5 ALTERNATIVE 2 FIG 206;VERIFIED DAMAGED FLANGE REMOVED AND PERFORMED DVI. NO FAULTS NOTED PER SRM 53-70-51-2R-5 REPAIR 5 STEP 4.C.(2);[10] SHOT PEENED UPPER CHORD TRIM AT BS947;LBL45-RBL50 PER SRM 51-20-06-0G-0. OK TO PRIME RECEIVED 4EA ANGLES FROM 0SS HT AND DYE PEN ON P.O #869617-SWA;[13] FABRICATED REPAIR PARTS ITEM(1) T-CHORD FROM BAC1505-101045 7075T6 LOT #5098198-1;ITEM(2) ANGLE FROM 7075-TO 0.100' LOT#1351333-2 AND HT TO T6 CONDITION AND DYE PEN ON P.O #869617-SWA;ITEM(3)STRAP FROM 7075-T6 0.125' LOT#1469335-1 LOCATED AND DRILLED ITEM 5 CLIP(2EA) FABRICATED FROM BAC1503-101021 7075T6 LOT #1489740-1 ALL I.A.W SRM 53-70-51-2R-5 REPAIR 5 PAR 4.D-K OK TO INSTALL;[24] VERIFIED ITEM 5 CLIP(2EA) FABRICATED FROM BAC1503-101021 7075T6 LOT #1489740-1 ALL I.A.W SRM 53-70-51-2R-5 REPAIR 5 PAR 4.D-K.<BR>OKAY TO INSTALL CLIPS GIVEN.;[25] INSTALLED REPAIR PARTS ITEM 1 T CHORD(1EA) ITEM 2 ANGLE (2EA) ITEM 3 STRAP(2EA) ITEM 5 CLIP (2EA) ;ALL FASTENERS REMOVED ON REPAIR AREA BETWEEN BS946-BS967 WL208 RBL50-LBL40;FILLET SEAL ;PRIMED ALL FASTENER HEAD AND CIC ALL I.A.W SRM 53-70-51-2R-5 REPAIR 5 PAR 4.L-P REMOVED AND REPAIRED DAMAGE ON BS947 FLOOR BEAM UPPER CHORD FROM LBL49-RBL55 WL208 COVERING DISCREPANCIES ON COSTUMER CARDS TTG8Q00CMNLS;TTG8Q00CMNM9

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