Service difficulty report · Support · Boeing 7377H4

Difficulty date
January 12, 2021
Submitted
February 15, 2021
Operation
Air carrier
Aircraft
N406WN
Make and model
Boeing 7377H4
Aircraft serial
27894
Aircraft time
66,898 hours, 39,718 cycles
Part
Support
Condition
Corroded
Location
Aft Cargo
Stage of operation
IN
How discovered
V
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 BS727 TO BS847 STR 25L WL 156.5 AFT CARGO COMPARTMENT / EVALUATED SUPPORT ZEE LOC BS 727 TO BS847 STR25L WL 156.5 AFT CARGO COMPARTMENT AND FOUND OUT LIMITS IAW B737-700 SRM 53-00-53-1A-2 ALLOWABLE DAMAGE 2 STEP 4A(2)(A) FIGURE 103 DETAIL D REPAIRED SUPPORT ZEE IAW B737-700 SRM 53-00-53-2R-6 REPAIR 6 FIGURE 203 SHEET 1 AND DWG 146A7500 REV- SRM 51-10-02 FABRICATED SUPPORT ZEE MATERIAL USED BAC 1496-377 7075-T62 PO 2020186462

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