Service difficulty report · Rib · Boeing 7378H4

Difficulty date
June 28, 2024
Submitted
July 10, 2024
Operation
Air carrier
Aircraft
N8639B
Make and model
Boeing 7378H4
Aircraft serial
60086
Aircraft time
33,669 hours, 16,222 cycles
Part
Rib
Condition
Worn
Location
Zone 500
Stage of operation
LD
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

LEFT WING MID DEFLECTION CONTROL RIB LOOSE & WORN AT FASTENER ATTACH POINT TO FIXED UPPER PANEL. CUT OUT DAMAGE IAW SRM 57-51-02-2R-4. VERIFIED NO CRACK INDICATIONS EXIST WHILE PERFORMING AN HFEC INSPECTION OF CUTOUT AREA IAW NDT MANUAL PART 6 51-00-00 PROC. 23 & NO CRACK INDICATIONS EXIST IN ALL 6 OPEN HOLES IAW NDT MANUAL PART 6 51-00-00 PROC. 16. FABRICATED ITEM 1 OTBD DOUBLER IAW SRM 57-51-02-2R-4. LOCATED AND DRILLED NEW INBD SERRATED PLATE & INBD PART 1 DOUBLER IAW SRM 57-51-02-2R-1. LOCATED & DRILLED NEW INBOARD SERRATED PLATE & INBD PART 1 DOUBLER IAW SRM 57-51-02-2R-1. REPAIRED LT WING MID DEFLECTION CONTROL RIB IAW SRM 57-51-02-2R-1 AND 57-51-02-2R-4. CLEARANCE CHECK GOOD.

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