Service difficulty report · Angle · Boeing 7378H4

Difficulty date
February 23, 2023
Submitted
March 21, 2023
Operation
Air carrier
Aircraft
N8528Q
Make and model
Boeing 7378H4
Aircraft serial
36927
Aircraft time
19,732 hours, 9,567 cycles
Part
Angle
Condition
Corroded
Location
Zn 100 Fus Lower
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 Z ANGLE COMMON TO SHEARWEB UPPER SURFACE STA 993; LBL 37; WL 208.<[01] REMOVED CORROSION ON Z ANGLE COMMON TO SHEARWEB UPPER SURFACE STA 993; LBL 37; WL 208. AREA BLENDED .5' BY .5' AROUND FLOOR PANEL HOLE; FOUND TO BE 100% MATERIAL LOSS FROM .050' AND OUT OF LIMITS PER SRM 53-70-51-1A-1; SRM 51-10-02-0G-0 REPLACEMENT OF PART IS APPLICABLE.;[02] REMOVED DAMAGED Z ANGLE COMMON TO SHEARWEB UPPER SURFACE STA 993; LBL 37; WL 208 PER SRM 51-40-02-0G-0.;[03] VERIFIED CORRECTIVE ACTIONS STEP 1.;[04] LOCATED AND DRILLED NEW Z ANGLE COMMON TO SHEARWEB P/N 147A5710U1 STA 993; LBL 35-47; WL 208 PER SRM 51-40-05-0G-0 AND DWG 147A5700.;[05] VERIFIED CORRECTIVE ACTION #4<BR>VERIFIED MEASUREMENTS;[06] OK TO INSTALL;[07] VERIFIED CORRECTIVE ACTION STEP 6. VERIFIED OK TO INSTALL.;[08] INSTALLED NEW Z ANGLE COMMON TO SHEARWEB P/N 147A5710U1 STA 993; LBL 35-47; WL 208 PER SRM 51-40-02-0G-0 AND DWG 147A5700.;[09] VERIFIED CORRECTIVE ACTION 8 INSTALLATION;[10] TASK COMPLETE

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