Service difficulty report · Support · Boeing 7377H4

Difficulty date
May 31, 2023
Submitted
June 20, 2023
Operation
Air carrier
Aircraft
N418WN
Make and model
Boeing 7377H4
Aircraft serial
29823
Aircraft time
71,436 hours, 42,247 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 SUPPORT ZEE LOC. BTW BS 727 TO BS 847 AT LEVEL STR 25L AFT CARGO COMPARTMENT 2023-361042<[01] EQUIPMENT P/N 35DLPLUS; S/N 120398603; DUE DATE 07-NOV-23 WAS USED;[02] REPAIRED SUPPORT ZEE LOC. BTW BS 727 TO BS 847 AT LEVEL STR 25L AFT CARGO COMPARTMENT I.A.W B737-700 SRM 53-00-53-2R-6 REPAIR 6; AND DWG 146A7500 SHEET 61 REV ?.;[03] CORRECTED STEP 2: REPAIRED SUPPORT ZEE LOC. BTW BS 727 TO BS 847 AT LEVEL STR 25L AFT CARGO COMPARTMENT I.A.W B737-700 SRM 53-00-53-2R-6 REPAIR 6; AND DWG 146A7500 SHEET 61 REV ?. SEE INDIVIDUAL SIGN-OFF BELOW.;[04] REPAIRED SUPPORT ZEE LOC. BTW BS 727 TO BS 847 AT LEVEL STR 25L AFT CARGO COMPARTMENT I.A.W B737-700 SRM 53-00-53-2R-6 REPAIR 6; AND DWG 146A7500 SHEET 61 REV ?. AS RII

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