Service difficulty report · Channel · Boeing 7378H4

Difficulty date
July 12, 2023
Submitted
August 16, 2023
Operation
Air carrier
Aircraft
N8600F
Make and model
Boeing 7378H4
Aircraft serial
39882
Aircraft time
38,436 hours, 17,543 cycles
Part
Channel
Part number
UNKNOWN
Condition
Cracked
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

AFT CARGO COMPARTMENT RIGHT SIDE; FLOOR STRUCTURE 'Z CHANEL' HAS CRACK BETWEEN STA 727H TO STA 727I.<[01] EVALUATED DAMAGED CRACK AREA OUT OF LIMITS PER SRM 53-00-53-1A-2<BR>REMOVED DAMAGED Z-CHANNEL SECTION FROM STA 727F+10' TO 767 PER SRM 51-40-02-0G-0<BR>LOCATED AND DRILLED NEW Z CHANNEL SECTION FROM STA 727F +10' TO STA 767 PER SRM 51-40-05-0G-0<BR>TREATED AND PRIMED NEW Z CHANNEL SECTION PER AMM 51-21-41-370-803 AND AMM 51-21-72-370-804<BR>INSTALLED Z-CHANNEL SECTION STA 727F +10' TO STA 767 PER SRM 51-40-02-0G-0 AND DWG#146A7502;[02] VERIFIED STEP 1;[03] VERIFIED STEP 1

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