Service difficulty report · Rib · Boeing 7377H4

Difficulty date
June 20, 2024
Submitted
July 18, 2024
Operation
Air carrier
Aircraft
N476WN
Make and model
Boeing 7377H4
Aircraft serial
32475
Aircraft time
66,646 hours, 39,887 cycles
Part
Rib
Condition
Cracked
Location
Zone 300
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

RH HORIZONTAL LEADING EDGE PANEL 341B RIB #10 FOUND CRACKED.<[01] SUMMARY=<BR>APPLIED STRIPPER TO RIGHT HORIZONTAL STABILIZER LEADING EDGE RIB #10 FOR NDT TEST AS PER B 737 AMM 51-21-11-150-801.<BR>PERFORMED HFEC INSP. ON RH HORIZONTAL L/E PANEL 341B RIB #10 IAW B737 NDT PART 6 51-00-00 PROC. 23. NO CRACKS NOTED; EQUIP: NORTEC 600 B/C 166317 CAL DUE: 10/24.<BR>TREATED AND PRIMED RIB #10 AS REQUIRED AS PER B 737 AMM 51-21-41-370-80 & AMM 51-21-72-370-804.;[02] CORRECTION FOR SUMMARY TO ALSO READ AMM 51-21-41-370-803.;[03] VERIFIED STEP 1. <BR><BR>VERIFIED CORRECTION MADE TO AMM REF. IN STEP 2.

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