Service difficulty report · Shield · Boeing 7377H4

Difficulty date
April 10, 2023
Submitted
May 18, 2023
Operation
Air carrier
Aircraft
N958WN
Make and model
Boeing 7377H4
Aircraft serial
36673
Aircraft time
38,993 hours, 23,664 cycles
Part
Shield
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

R/H FLOOR TO SIDEWALL SHIELD CORROSION; BS500+2; +6; +10; +14; RBL24; WL156; R/H FLOOR TO SIDEWALL SHIELD CORROSION BS500+2 +6 +10 +14 RBL24 WL156<[01] REMOVED CORROSION FROM 6 SPOTS ON PART 143A8126Y36. THE DEEPEST SPOT IS 1.00 X 1.50 DEPTH 0.015. ORDINAL THICKNESS IS .040. PART HAS NO LIMITS FOR DAMAGE(OUT OF LIMITS). REPAIR BY REPLACEMENT. IAW SRM 51-10-02.<BR>CAL TOOL ATS2592 SER F01852 EXP 02/29/2024;[02] RECEIVED NEW PART. LOCATED AND DRILLED/ COUNTERSINKED AND INSTALLED NEW NUT PLATES. IAW DWG 143A0080 ID:0041 REV:-; SRM 51-40-05; SRM 51-40-06; SRM 51-40-08. SRM 51-40-02.;[03] VERIFIED CORRECTIVE ACTION 1-2 AND MEASUREMENT TABLE

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