Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
August 26, 2022
Submitted
September 26, 2022
Operation
Air carrier
Aircraft
N496WN
Make and model
Boeing 7377H4
Aircraft serial
32478
Aircraft time
59,797 hours, 35,569 cycles
Part
Stiffener
Condition
Cracked
Location
Fuselage
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

FOUND CABIN AREA STIFFENER AT RBL 15 BETWEEN STA 380 AND STA 400 SHOWS MULTIPLE CRACKS AROUND FASTENER HOLES / [01] REMOVED STIFFENER AT MAIN CABIN BETWEEN STA. 380 TO STA. 400 RBL. 15'. REF. SRM. 51-40-02-0G-0-A00729.;[02] VERIFIED REMOVAL OF STIFFENER AT MAIN CABIN BETWEEN STA. 380 TO STA. 400 RBL. 15;[03] RECEIVED NEW ANGLE PART NUMBER 143A5410-170 PO# 1784756 AT CABIN AREA STIFFENER AT RBL 15 BETWEEN STA 380AND STA 400;[04] VERIFIED NEW REPLACMENT PART.;[05] LOCATED AND DRILLED NEW ANGLE AS PER SRM 51-40-05-OG-0;[06] CORRECTION FOR STEP 5:LOCATED AND DRILLED NEW CABIN AREA STIFFENER AT RBL 15 BETWEEN STA 380 AND STA 400 AS PER SRM 51-40-05-0G-0; PENDING FLOOR TO ANGLE HOLES;[07] VERIFIED STEP 6 LOCATED AND DRILLED NEW CABIN AREA STIFFENER AT RBL 15 BETWEEN STA 380 AND STA 400;[08] OK TO INSTALL NEW STIFFENER;[09] INSTALLED NEW STIFFENER AT MAIN CABIN AREA RBL. 15' BETWEEN STA. 380 TO STA. 400 REF.51-40-02-0G-0;[10] VERIFIED STEP 8 AND 9

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