Service difficulty report · Web · Boeing 7377H4

Difficulty date
September 21, 2022
Submitted
October 20, 2022
Operation
Air carrier
Aircraft
N224WN
Make and model
Boeing 7377H4
Aircraft serial
32493
Aircraft time
56,537 hours, 33,806 cycles
Part
Web
Part number
144A772118
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 PRESSURE WEB SUPPORT CLIP AT STA 663 RBL 63 WL 202 HAS AREA OF CORROSION / [01] REMOVED CORROSION IAW SRM 51-10-02-0G-0; EVALUATED MATERIAL LOSS - ORIGINAL THICKNESS .063'; LOSS .007; REMINING .056'.<BR>TOOL# AAR29270 CAL DUE 12/09/22.;[02] NO ALLOWABLE MATERIAL LOSS LIMITS. RECEIVED -18 RETAINER ON BACKSHOP W/O #44141-0000-0005.;[03] VERIFIED PART FROM BACK SHOP;[04] TRIMMED; LOCATED AND DRILLED -18 RETAINER IAW B737 SRM 51-40-05-0G-0.;[05] VERIFIED STEP 4<BR>OK TO TREAT AND PRIME;[06] TREATED AND PRIMED -18 RETAINER IAW B737 AMM 51-21-41-370-801; AND 51-21-72-370-804. PLACED PART ON PARTS RACK.;[07] VERIFIED STEP 6<BR>AUDIT CW

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