Service difficulty report · Flap · Boeing 7377H4

Difficulty date
March 27, 2019
Submitted
February 24, 2022
Operation
Air carrier
Aircraft
N434WN
Make and model
Boeing 7377H4
Aircraft serial
32454
Aircraft time
56,185 hours, 33,066 cycles
Part
Flap
Condition
Delaminated
Location
L/H Wing
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/H WING OUTBOARD TRAILING AFT FLAP HAS A 6' DELAMINATION 1/2' OF INBOARD EDGE ON THE TRAILING EDGE. DAMAGE IS IN BOTH ZONE 1 AND ZONE 2 PER SRM 57-53-01-1A-5 / ACCOMPLISHED EA #1-757-16107. SPEED TAPE AREA REQUIRES A VISUAL INSPECTION ONCE PER DAY FOR LOOSE OR MISSING SPEED TAPE. IF THE SPEED TAPE IS DAMAGED OR MISSING ACCOMPLISH A DETAILED VISUAL INSPECTION TO VERIFY DELAMINATION HAS NOT GROWN IN SIZE AND APPLY NEW SPEED TAPE PER STEP 4 AND 5 IN EA 1-757-16107. CONTACT SERVICE ENGINEERING IF NEW DAMAGES WERE FOUND. REPAIR OR REPLACE THE L/H AFT FLAP PER SRM 57-53-01-2R. WITHIN 20 CYCLES . CONTINUE ON LP#0943659

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