Service difficulty report · Plate · Boeing 7377H4

Difficulty date
July 23, 2023
Submitted
August 8, 2023
Operation
Air carrier
Aircraft
N207WN
Make and model
Boeing 7377H4
Aircraft serial
34012
Aircraft time
58,192 hours, 34,966 cycles
Part
Plate
Part number
UNKNOWN
Condition
Cracked
Location
Zn 600 Right Win
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

FOUND LOWER TRAILING EDGE PANEL WIGGLE PLATE CRACKED IN 3 PLACES. CRACKS LOCATED BELOW #12 GROUND SPOILER. 1ST CRACK IS LOCATED BELOW INBD EDGE OF #12 SPOILER. 1ST CRACK BEGINS AT RIVET HOLE & GOES TO FWD EDGE OF WIGGLE PLATE. CRACK IS .320 LONG. CRACK INCLUDES APPROXIMATELY 5/16 X 3/8 MISSING MATERIAL BETWEEN RIVET & WIGGLE PLATE EDGE. 2ND CRACK IS .320 LONG & GOES FROM RIVET HOLE TO WIGGLE PLATE EDGE AND IS 4.5 FROM INBD EDGE OF #12 SPOILER. 3RD CRACK IS 14 FROM INBD EDGE OF #12 SPOILER AND IS .320 IN LENGTH & GOES FROM RIVET HOLE TO FWD EDGE. ALL RIVETS IN PLATE LOOSE & PLATE RIVET HOLES ELONGATED. MOST INBD WIGGLE PLATE RIVET SHEARED. REMOVED SHELF PANEL BELOW 312 GROUND SPOILER IAW AMM 20-50-11. R & R I/B WIGGLE PLATE ATTACHES SHELF PANEL LOCATED UNDER #12 GROUND SPOILER IAW SRM 51-40-02. R & R WIGGLE PLATES IAW SRM 51-40-02. ORIGINAL SUBMISSION DATE: 7/27/2023

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