Service difficulty report · Channel · Boeing 7377H4

Difficulty date
November 4, 2021
Submitted
December 20, 2021
Operation
Air carrier
Aircraft
N778SW
Make and model
Boeing 7377H4
Aircraft serial
27883
Aircraft time
68,867 hours, 40,745 cycles
Part
Channel
Condition
Corroded
Location
Fuselage
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

AFT CARGO LEFT SIDE 'Z' CHANNEL IS CORRODED 727-847; ; / [01] FOUND EXFOLIATION CORROSION ON L/H SIDE Z CHANNEL BETWEEN STA. 272 AND STA. 847 ; OUT OF LIMITS PER 737 SRM 53-00-53-1A-2; [02] CORRECTION ; FOUND EXFOLIATION CORROSION ON L/H SIDE Z CHANNEL BETWEEN STA. 727 TO STA. 847; OUT OF LIMITS PER REF 737 SRM 53-00-53-1A-2; [03] VERIFIED CORRECTED STEP 2.; [04] RECEIVED NEW L/H Z CHANNEL; P/N 146A7502-27; NEW CHANNEL TO BE INSTALLED ON T/C 5360-E-16462-NG; [05] STEP 4 VERIFIED; [06] STEP 4 VERIFIED

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