Service difficulty report · Channel · Boeing 7377BD

Difficulty date
April 7, 2023
Submitted
May 5, 2023
Operation
Air carrier
Aircraft
N7747C
Make and model
Boeing 7377BD
Aircraft serial
36091
Aircraft time
50,468 hours, 25,711 cycles
Part
Channel
Condition
Broken
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 LEFT 'Z' CHANNEL IS BROKEN AT 500A-500B ALSO INTERCOSTAL SUPPORT ATTACHED TO 'Z' CHANNEL IS ALSO BROKEN.<[01] REMOVED Z CHANNEL SECTION FROM STA 480-500D PER SRM 51-40-02-0G-0<BR>LOCATED AND DRILLED NEW Z CHANNEL SECTION FROM STA 480-500D PER SRM 51-40-05-0G-0 MAT USED: BAC1496-444-7075-T62 (PO:2009251).<BR>FABRICATED SPLICE REPAIR AT L/H Z CHANNEL STA 480+10' PER SRM 53-00-53-2R-5<BR>TREATED AND PRIMED NEW Z CHANNEL SECTION 480+10' -500D AND NEW SPLICE REPAIR PLATE PER AMM 51-21-41-370-803 AND AMM 51-21-72-370-804<BR>APPLIED BMS 10-11; TYPE 2 ENAMEL TO NEW Z CHANNEL SECTION 480-500D AND NEW SPLICE REPAIR; PER SOPM 20-41-02.<BR>INSTALLED NEW Z CHANNEL SECTION FROM STA 480-500D PER SRM 51-40-02-0G-0;[02] VERIFIED STEP # 1

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