Service difficulty report · Floor Support · Boeing 7378H4

Difficulty date
March 15, 2022
Submitted
April 7, 2022
Operation
Air carrier
Aircraft
N8682B
Make and model
Boeing 7378H4
Aircraft serial
36651
Aircraft time
20,559 hours, 9,520 cycles
Part
Floor Support
Condition
Corroded
Location
Fwd Cargo
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

FWD CARGO PIT; FLOOR PANEL R/H ZEE ANGLE; BS 500+6 TO BS 500H+11; RBL25; WL 156; AREAS OF CORROSION ON ZEE ANGLE AT LOWER SIDE WALL PANEL ATTACH FASTENER HOLES; AREAS MARKED IN BLACK; DOT: 148-003 / [01] EVALUATED ALLOWABLE LIMITS .100% MATERIAL LOSS FOUND OUT OF LIMITS IAW SRM 53-00-53-1A-2;[02] VERIFIED STEP 1 IS COMPLETE;[03] VERIFIED STEPS 1 AND 2;[04] REMOVED DAMAGE SECTION OF Z ANGLE FROM SAT 500A TO 500I IAW SRM 51-40-02-0G-0 AND 53-00-53-2R-5;[05] VERIFIED MATERIAL ID FOR Z ANGLE REPAIR PARTS BAC1496-444-7075T6 TAG#A108150 IAW SRM 53-00-53-2R-5 REPAIR 5;[06] VERIFIED STEPS 4 AND 5 ARE COMPLETE;[07] VERIFIED STEPS 4; 5 AND 6;[08] UPDATED P/N;[09] VERIFIED STEP;[10] FABRICATED Z ANGLE REPAIR PARTS IAW SRM 53-00-53-2R-5 REPAIR 5;[11] VERIFIED STEP 10;[12] OK GIVEN TO TREAT AND PRIME;[13] APPLIED ALODINE AND PRIMER TO Z ANGLE REPAIR PARTS IAW SRM 51-20-01-0G-0 AND AMM51-21-72-370-804;[14] VERIFIED STEP 13;[15] OUT SEQUENCE: Z ANGLE REPAIR SPLICE IS BETWEEN STA 500G AND 500H IAW SRM 53-00-53 2R-5 REPAIR 5;[16] VERIFIED STEP 15 IS COMPLETE;[17] CHANGED REPAIR CLASSIFICATION;[18] VERIFIED STEPS 15; 16 AND 17;[19] OK GIVEN TO INSTALL Z ANGLE REPAIR;[20] INSTALLED Z ANGLE REPAIR PARTS IAW SRM 53-00-53-2R-5 REPAIR 5;[21] VERIFIED STEP 20 IS COMPLETE;[22] VERIFIED CORRECTION;[23] VERIFIED ITEM 20 C/W;[24] OK TO CIC;[25] APPLIED CIC ZEE ANGLE REPAIR AREA IAW AMM 51-21-91-620-802;[26] VERIFIED JOB IS COMPLETE;[27] VERIFIED STEPS 25 AND 26;[28] JOB COMPLETE AUDIT C/W

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