Service difficulty report · Support Channel · Boeing 7377BD

Difficulty date
December 14, 2022
Submitted
January 26, 2023
Operation
Air carrier
Aircraft
N7713A
Make and model
Boeing 7377BD
Aircraft serial
33919
Aircraft time
57,380 hours, 30,141 cycles
Part
Support Channel
Condition
Corroded
Location
Bs 170-177
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

SUPPORT CHANNEL BETWEEN BS 170-177; LBL 3-RBL 3 WL 208 IS CORRODED CORRECTION BODY STATION: SUPPORT CHANNEL BETWEEN BS 260-277 LBL 3-RBL 3 WL 208 IS CORRODED<[01] REMOVED CORROSION ON SUPPORT CHANNEL BETWEEN BS 260-270; LBL 3-RBL 3 WL 208 P/N 141A5211-1; AREA OT=0.040; RT=0.032; L=1.900'W=1.200''; X=0.008. FOUND TO BE OUT LIMITS IAW SRM 53-10-51-1A-1 FOR ALLOWABLE DAMAGE AND SRM 53-10-51-0L-2 FOR IDENTIFICATION AND IT WILL BE REPAIRABLE BY REPLACEMENT I.A.W 51-10-02-0G PAR 9C.;[02] VERIFIED CORRECTIVE ACTION 1;[03] REMOVED SUPPORT CHANNEL BETWEEN BS 260-270; LBL 3-RBL 3 WL 208 P/N 141A5211-1 I.A.W SRM 51-40-02-0G-0.;[04] LOCATED AND DRILLED NEW SUPPORT CHANNEL BETWEEN BS 170-177; LBL 3-RBL 3 WL 208 IAW SRM 51-40-05-0G-0 AND BOEING DWG 141A5211 OK TO INSTALL;[05] VERIFIED CORRECTIVE ACTION 4.;[06] REMOVED AND REPLACED CHANNEL BETWEEN BS 170-177; LBL 3-RBL 3 WL 208 IAW SRM 51-40-02-0G-0 AND BOEING DWG # 141A5210;[07] VERIFIED CORRECTIVE ACTION 6.

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