Service difficulty report · Support · Boeing 7377H4

Difficulty date
May 26, 2020
Submitted
August 16, 2021
Operation
Air carrier
Aircraft
N477WN
Make and model
Boeing 7377H4
Aircraft serial
33988
Aircraft time
55,517 hours, 32,839 cycles
Part
Support
Condition
Corroded
Location
Aft Cargo
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 AFT BULKHEAD CENTER PANEL LOWER SUPPORT AT B.S. 947; L.B.L. 10 - R.B.L. 21; W.L. 154. / CORROSION ON AFT CARGO BAY AFT BULKHEAD CENTER PANEL LOWER SUPPORT AT BS947; LBL10-RBL21; WL154 FOUND TO BE OUT OF ALLOWABLE LIMITS DUE TO NO SRM LIMITS; REMOVED AND REPLACED AFT BULKHEAD CENTER PANEL LOWER SUPPORT AT BS947; LBL10-RBL21; WL154 IAW SRM 51-10-02-0G-0 PARA 9; SRM 51-40-02-0G-0 PARA 4(B) AND PARA 7(D); DWG 149A8110 AND DWG 149A8117

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