Service difficulty report · Retainer · Boeing 7377H4

Difficulty date
July 28, 2021
Submitted
September 14, 2021
Operation
Air carrier
Aircraft
N491WN
Make and model
Boeing 7377H4
Aircraft serial
33867
Aircraft time
53,758 hours, 31,898 cycles
Part
Retainer
Condition
Cracked
Location
Rt 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

RT WING UPPER T/E PANEL JUST AFT OF #2 PYLON; VERT SEAL RETAINER IS CRACKED. ; / [01] UPDATED MEASUREMENT SECTION; [02] REMOVED AND REPLACED VERT. SEAL RETAINER ON R/WING UPPER T/E PANEL JUST AFT OF #2 PYLON IAW SRM 51-40-02-0G-0; AMM 20-50-11; AND AIPC 57-50-00-25.; [03] VERIFIED SEAL RETAINER INSTALLED IAW SRM 51-40-02-0G-0; AMM 20-50-11; AND AIPC 57-50-00-25.

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