Service difficulty report · Skin · Boeing 7377H4

Difficulty date
August 10, 2021
Submitted
September 7, 2021
Operation
Air carrier
Aircraft
N449WN
Make and model
Boeing 7377H4
Aircraft serial
32469
Aircraft time
60,089 hours, 35,684 cycles
Part
Skin
Condition
Delaminated
Location
Lt Wing Te Flap
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

L/WING INBOARD MAIN FLAP HAS A DELAMINATED SPOT AT LOWER SURFACE 7' FROM O/B EDGE AND 6' FROM T/E ; / [01] PERFORMED CUT OUT OF 2' AND REMOVED DAMAGED SKIN AT L/W INBOARD MAIN FLAP TRAILING EDGE WEDGE LWR SURFACE AS PER B737-700 SRM 51-70-10-2R-0 PARAGRAPH 7.<BR>NO WATER DAMAGE FOUND; NO CORE DAMAGE FOUND.; [02] VERIFIED STEP #1.; [03] FABRICATED FILLER AND DOUBLER FOR REPAIR AS PER B737-700 SRM 51-70-10-2R-0 PARAGRAPH 8.; [04] VERIFIED STEP #3; [05] OK TO INSTALL REPAIR PARTS.; [06] MEASUREMENTS; [07] APPLIED 051141-57814 (BOEGEL) AND REPAIRED DAMAGE AREA AT L/WING I/B MAIN FLAP T/EDGE LOWER SURFACE AS PER BOEING 737 SRM 51-71-10-2R-0. MATERIAL USED HCS2404-050-05 PO#1731810 PLUS 7075T6.020 BARE PO#1672474.RESTORED ORIGINAL FINISHED.; [08] RESTORED ORIGINAL FINISHED AT L/W I/B MAIN FLAP AS PER BOEING 737 SRM 51-70-10-2R-0 STEP 22 CLEAN;SEAL AND FINISH; [09] VERIFIED REPAIR

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