Service difficulty report · Support · Boeing 7377H4

Difficulty date
June 8, 2023
Submitted
July 17, 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: 747+2; 747+3; 747+5; 747+10; 747+11; 747+14; 747+17; 747+18; RBL 22; WL 156<[01] PARTIALLY COMPLETED STEPS 1-8;[02] VERIFIED APPLICABILITY OF SRM 53-60-53-01-2 FOR ALLOWABLE LIMIT AND SRM 53-00-53-1A-2 FOR ALLOWABLE LIMIT;[03] VERIFIED PARTIAL STEPS 1-8;[04] CORRECTION ON CORRECTIONS ACTION 2 VERIFIED APPLICABILITY OF SRM 53-60-53-01-2 FOR IDENTIFICATION AND SRM 53-00-53-1A-2 FOR ALLOWABLE LIMIT;[05] VERIFIED CORRECTIVE ACTION 4 AND MEASUREMENT TABLE;[06] THIS FAULT WILL BE ACCOMPLISHED ON CARD#TTG8Q00LHMEV.<BR>COMPLETED ALL MAINTENANCE ACTION.;[07] VERIFIED CORRECTIVE ACTION STEP #6;[08] VERIFIED STEP ! COMPLETE.;[09] VERIFIED STEP ! COMPLETE.

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