Service difficulty report · Support · Boeing 7377H4

Difficulty date
June 8, 2023
Submitted
July 18, 2023
Operation
Air carrier
Aircraft
N963WN
Make and model
Boeing 7377H4
Aircraft serial
36676
Aircraft time
38,123 hours, 23,431 cycles
Part
Support
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
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 AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT STATIONS: 727+2; 727+6; 727C+7; 727C+11; 727C+19; 727D+3; 727D+5; 727D+6; 727D+8; 727D+10; LBL 22; WL 156.<[01] VERIFIED SRM 53-60-53-0I-2 FOR IDENTIFICATION AND SRM 53-00-53-1A-2 FOR ALLOWABLE DAMAGE.;[02] ALL STEPS COMPLETED;[03] THIS FAULT WILL BE ACCOMPLISHED ON CARD NUMBER TTG8Q00LHMM5.<BR>COMPLETED ALL MAINTENANCE ACTIONS.;[04] VERIFIED STEPS 1-10; CORRECTIVE ACTIONS 1-3<BR>VERIFIED MEASUREMENT TABLE<BR>VERIFIED SRM APPLICABILITY.

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