Service difficulty report · Angle · Boeing 7377H4

Difficulty date
May 27, 2020
Submitted
June 30, 2020
Operation
Air carrier
Aircraft
N928WN
Make and model
Boeing 7377H4
Aircraft serial
36890
Aircraft time
40,809 hours, 24,748 cycles
Part
Angle
Part number
143A7505
Condition
Corroded
Location
Bs 500a-500d
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 RH Z-ANGLE IS CORRODED AT BS 500A TO 500D; RBL 24; WL 156. / REMOVED CORROSION FROM Z-ANGLE STA 500A TO 500B; WL156; RBL 24; ORG THICKNESS .040' REMAINING .032' LOSS .008' FOUND Z-ANGLE TO BE OUT OF LIMITS. FABRICATED NEW Z-ANGLE STA 500A TO 500D; REMOVED OLD Z-NAGLE AND INSTALLED NEW A-ANGLE AND APPLYIED PROTECTIVE FINISH IAW SRM 51-40-02-0G-0, SRM 53-00-53-1A-2, DWG 143A7505 REV-, DWG 143A7500, REV-, DWG 143A7501, REV H, SRM 51-40-05-0G-0, AND SRM 51-40-10-2R-0.

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