Service difficulty report · Channel · Boeing 7378H4

Difficulty date
July 10, 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
Corroded
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

CORROSION @ FWD CARGO COMPARTMENT L/H SIDE FLOOR SUPPORT Z CHANNEL FROM STA 500F TO STA 500I S-26L MKD DOT<[01] REMOVED CORROSION AT FWD CARGO COMPARTMENT L/H SIDE FLOOR SUPPORT Z CHANNEL FROM STA 500F TO STA 500I PER SRM 51-10-02-0G-0<BR>EVALUATED REWORKED AREA ORIG MATERIAL:0.040' MATERIAL REMIANING:0.030' MATERIAL REMOVED:0.010 FOUND OUT OF LIMITS PER SRM 53-00-53-1A-2<BR>REMOVED OUT OF LIMITS LH Z-CHANNEL SECTION FROM STA 500F-500I PER SRM 51-40-02-0G-0<BR>LOCATED AND DRILLED NEW Z CHANNEL SECTION STA STA 500F-500I PER SRM 51-40-05-0G-0 (MATERIAL USED : BAC1496-444 7075 T62)<BR>TREATED AND PRIMED NEW Z-CHANNEL SECTION PER AMM 51-21-41-370-803 AND AMM 51-21-72-370-804<BR>INSTALLED FWD CARGO COMPARTMENT L/H SIDE FLOOR SUPPORT Z CHANNEL SECTION FROM STA 500F TO STA 500I PER SRM 51-40-02-0G-0 AND DWG#143A7501;[02] VERIFIED STEP 1;[03] VERIFIED STEP 1

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