Service difficulty report · Channel · Boeing 7377H4

Difficulty date
August 9, 2021
Submitted
September 7, 2021
Operation
Air carrier
Aircraft
N449WN
Make and model
Boeing 7377H4
Aircraft serial
32469
Aircraft time
60,089 hours, 35,684 cycles
Part
Channel
Condition
Corroded
Location
Bs 270
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

FLIGHT COMPARTMENT; COCKPIT ENTRANCE STA270 BL'0' CHANNEL; CORRORED ; / [01] REMOVED ANGLE SUPPORT CORRORED FROM FLIGHT COMPARTMENT COCKPIT ENTRANCE STA 270 BL-0 PER B737-700 SRM 51-40-02-0G-0; [02] EVALUATED CORROSION PER B737-700 SRM 51-10-02-0G-0 AND FOUND TO BE OUT OF LIMITS ( CORROSION WENT THRU ); [03] CORRECTION STEP 1 REMOVED CHANNEL SUPPORT AT FLIGHT COMPARTMENT COCKPIT ENTRANCE STA 270 BL-O REF B737-7 SRM 51-40-02-0G-0; [04] LOCATED AND DRILLED NEW CHANNEL SUPPORT AT COCKPIT BETWEEN STA 260 TO STA 270 BL-0 REF B737-7 SRM 51-40-05-0G-0; [05] VERIFIED STEPS 1; 2; 3 AND 4; [06] OK TO INSTALL CHANNEL; [07] INSTALLED NEW CHANNEL SUPPORT AT FLIGHT COMPARTMENT COCKPIT ENTRANCE BETWEEN STA 260 TO STA 270 BL-0' REF B737-7 SRM 51-40-02-0G-0 AND DWG # 141A5211; [08] REMOVED AND REPLACED NEW CHANNEL AT COCKPIT ENTRANCE BETWEEN STA 260 TO 270 BL-0 REF B737-7 SRM 51-40-02-0G-0 AND DWG#141A5211; [09] INSPECTED CHANNEL INSTALLATION; [10] TRACKING PART

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