Service difficulty report · Doubler · Boeing 7378H4

Difficulty date
August 23, 2024
Submitted
September 12, 2024
Operation
Air carrier
Aircraft
N8648A
Make and model
Boeing 7378H4
Aircraft serial
42531
Aircraft time
34,069 hours, 16,363 cycles
Part
Doubler
Condition
Loose
Location
Zone 500
Stage of operation
IN
How discovered
V
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 TRAILING EDGE: DEFLECTION RIB SUPPORT BEAM ATTACHMENT. THE 2 HORIZONTAL ATTACHMENT FASTENERS ARE LOOSE, BEAM & BRACKET HOLES ARE ELONGATED. CUT OUT DAMAGE IN CONTROL RIB UPPER TAB IAW SRM 57-51-02-2R-4. CUT OUT DAMAGE IN SUPPORT BEAM IAW SRM 57-51-02-2R-1. PERFORMED AN HFEC INSPECT ALONG CUT EDGES. REF NDT PART 6; 51-00-00; PROCEDURE 4 OR NDT PART 6; 51-00-00; PROCEDURE 23. NO DEFECTS NOTED. PERFORMED AN OPEN HOLE HFEC INSPECT OF THE INITIAL FASTENER HOLES IN REPAIR AREA. REF NDT PART 6; 51-00-00; PROCEDURE 16. NO DEFECTS NOTED. DRILLED REPAIR PARTS FOR UPPER TAB REPAIR IAW SRM 57-51-02-2R-4. DRILLED REPAIR PARTS FOR UPPER TAB REPAIR IAW SRM 57-51-02-2R-4. LOCATED & DRILLED REPAIR DOUBLER FOR UPPER BEAM IAW SRM 57-51-02-2R-1. INSTALLED REPAIR PARTS IAW SRM 57-51-02-2R-4 & SRM 57-51-02-2R-1.

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