Service difficulty report · Web · Boeing 7377H4

Difficulty date
July 6, 2023
Submitted
August 29, 2023
Operation
Air carrier
Aircraft
N297WN
Make and model
Boeing 7377H4
Aircraft serial
32542
Aircraft time
51,861 hours, 31,224 cycles
Part
Web
Part number
UNKNOWN
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

CORROSION ON 1016 WEB BS1016+12 LBL7 - LBL20 WL208.<[01] NO ENTRIES FOUND ON SRM;REPLACEMENT OF THE PART IS APPLICABLE I.A.W SRM 51-10-02-0G-0 PAR 9.C <BR>UPDATED TABLE MEASUREMENT;[02] VERIFIED CORRECTIVE ACTION 1;[03] REMOVED WEB AT BS 1016-BS 1026; BL0-LBL33 IAW SRM 51-40-02-0G-0;[04] LOCATED AND DRILLED NEW L/H SHEAR WEB BS1016-BS1032 BL0-LBL36 WL208 I.A.W SRM 51-40-05-0G-0 AND BOEING DWG 147A5600;[05] VERIFIED CORRECTION ACTION ITEM 4.;[06] OK TO INSTALL.;[07] OKAY TO INSTALL SHEAR WEB.;[08] INSTALLED SHEAR WEB EXCEPT BS 1016 LBL35 BRACKET; BS1016-BS1028 BL0 FASTENERS; AND PRESSURE SEAL IAW SRM 51-40-02 AND BOEING DWG 147A5600.;[09] COMPLETED INSTALLATION OF SHEAR WEB BS 1016 TO 1032 LBL 0-38 WL 208 IAW SRM 51-40-02-0G-0 AND DWG 147A5600.;[10] VERIFIED MEASUREMENT TABLE.;[11] VERIFIED CORRECTIVE ACTIONS 8 AND 9.

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