Service difficulty report · Web · Boeing 7377H4

Difficulty date
July 28, 2021
Submitted
September 15, 2021
Operation
Air carrier
Aircraft
N447WN
Make and model
Boeing 7377H4
Aircraft serial
33720
Aircraft time
58,733 hours, 34,620 cycles
Part
Web
Condition
Corroded
Location
Bs 987 Rbl 41
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

CORROSION ON WEB AT AFT WET AREA BS987 RBL41.5 WL208. ; / [01] REMOVED 1EA FASTENER TO FOM PER SRM 51-40-02; [02] REMOVED AND EVALUATED CORROSION REMOVAL AT DISCREPANCY AREA L=1.0' W=1.0' . NO ALLOWABLE DAMAGE FOUND ON SRM. PART TO BE REPAIR BY REPLACEMENT PER SRM 51-40-02; [03] VERIFIED; DAMAGE NOT ALLOWED AT THAT AREA; PART WILL BE REPLACED.; [04] REMOVED DAMAGE AREA L= 1.0' W=1.0' PER SRM 51-10-02 AND PERFORMED VISUAL INSPECTION WITH A 10-POWER MAGNIFYING GLASS TO MAKE SURE ALL OF THE CORROSION WAS REMOVED AND TO FIND POSSIBLE CRACKS TO SUBMIT TO ENGINEERING FOR REPAIR DISPOSITION.; [05] VERIFIED CORROSION IS REMOVED PER SRM 51-10-02;

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