Service difficulty report · Support Bracket · Boeing 7377H4

Difficulty date
March 10, 2023
Submitted
April 12, 2023
Operation
Air carrier
Aircraft
N956WN
Make and model
Boeing 7377H4
Aircraft serial
36672
Aircraft time
38,869 hours, 23,696 cycles
Part
Support Bracket
Condition
Cracked
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

FWD CARGO BAY SUBTHRESHOLD SUPPORT BRACKET CRACKED BS 440 +15' RBL 24 WL 154<[01] REMOVED DAMAGED BRACKET IAW SRM CH51-40-02. LOCATED AND DRILLED NEW BRACKET IAW SERM CH 51-40-05. OK TO INSTALL.;[02] VERIFIED APPLICABILITY OF SRM CH 53-60-15-1A-1 FOR ALLOWABLE DAMAGE TO BRACKET. DAMAGE FOUND TO BE OUT OF LIMITS.;[03] VERIFIED APPLICABILITY OF SRM CH 53-60-15-1A-1 FOR ALLOWABLE DAMAGE TO BRACKET. DAMAGE FOUND TO BE OUT OF LIMITS. REMOVED DAMAGED BRACKET IAW SRM CH51-40-02. LOCATED AND DRILLED NEW BRACKET IAW SRM CH 51-40-05 AND DRAWING #143A8120. OK TO INSTALL.;[04] VERIFIED CORRECTIVE ACTION 2;[05] VERIFIED CORRECTIVE ACTION 3. OK TO INSTALL.;[06] INSTALLED BRACKET AT BS455 RBL 24 WL 154 IAW SRM CH 51-40-02 AND DRAWING #143A8120.;[07] VERIFIED ITEM 6 CORRECTIVE ACTIONS.;[08] VERIFIED MEASUREMENTS.

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