Service difficulty report · Angle · Boeing 7377H4

Difficulty date
February 20, 2023
Submitted
March 1, 2023
Operation
Air carrier
Aircraft
N231WN
Make and model
Boeing 7377H4
Aircraft serial
32499
Aircraft time
57,095 hours, 34,112 cycles
Part
Angle
Condition
Cracked
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

CRACK FOUND AT NUTPLATE HOLE INBD SIDE OF DRAIN ON VERTICAL PRESSURE WEB LOWER ATTACH ANGLE STA 663 RBL 35<[01] CUT AND REMOVED DAMAGED SECTION OF ATTACH ANGLE IAW SRM 57-10-10-2R-6 SECTION 4.C;[02] ACCOMPLISHED HFEC IAW B737 NDT PART 6 51-00-00 PROCEDURE 23. NO DEFECTS NOTED. TOOL# 40083 DUE 14SEP23;[03] VERIFIED STEP 1;[04] VERIFIED MATERIAL ID FOR REPAIR FILLER IS 7075 T6 0.10 TAG #A39363IAW SRM 57010-10-2R-6;[05] VERIFIED ACTION 4;[06] VERIFIED ITEM 5;[07] FABRICATED REPAIR FILLER IAW SRM 57-10-10-2R-3;[08] VERIFIED ACTION 7;[09] VERIFIED ITEM 1 OF STEP 2;[10] PERFORMED EA 23-157-00522. REF. FAULT TTG8Q00HU0SE;[11] UPDATED PER FINAL EA REFER TO FAULT TTG8Q00HU0SE WHERE EA 23-157-00522 WAS ADDED AS A SUBTASK;[12] AUDIT CW

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