Service difficulty report · Web · Boeing 7377H4

Difficulty date
May 12, 2021
Submitted
June 14, 2021
Operation
Air carrier
Aircraft
N222WN
Make and model
Boeing 7377H4
Aircraft serial
34290
Aircraft time
52,415 hours, 31,247 cycles
Part
Web
Condition
Corroded
Location
Aft Crgo Thrshld
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 SUBTHRESHOLD WEB AT AFT CARGO BAY BS802 - BS827 RBL26 WL158. ; / SRM 53-60-15-01-1 FOR I.D AND SRM 53-60-15-1A-1 FOR ALLOWABLE DAMAGE ARE APPLICABLE REMOVED CORROSIN ON ACB SUBTHRESHOLD BS 802-BS 827 RBL 26 WL158 MAX. MAT. LOSS 6.X2.X.007 ORIGINAL THICKNESS 0.050 FOUND TO BE OUT OF LIMITS I.A.W SRM 3-60-15-1A-1 LOCATED AND DRILLED ACB SUB THRESHOLD WEB BS 794 TO BS 847 RBL 26 WL 158 I.A.W SRM 51-40-05-0G-0 INSTALLED ACB SUBTHRESHOLD WEB FROM BS 794-BS847 RBL19 IAW SRM 51-40-02 AND IAW DWG#146A8120

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