Service difficulty report · Channel · Boeing 7378H4

Difficulty date
November 2, 2022
Submitted
November 17, 2022
Operation
Air carrier
Aircraft
N8517F
Make and model
Boeing 7378H4
Aircraft serial
63594
Aircraft time
19,865 hours, 9,440 cycles
Part
Channel
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

FOUND SEVERAL SPOTS OF CORROSION WHERE THE SIDE PLATE (Z CHANNEL) ATTACHES TO THE FLOOR STRUCTURE; INTERCOASTALS AND T ANGLES FROM STA 727+4' TO STA 767 AND RBL 22.21 / [01] CLEANED SEVERAL SPOTS OF CORROSION WHERE THE SIDE PLATE (Z CHANNEL) ATTACHES TO THE FLOOR STRUCTURE; INTERCOASTALS AND T ANGLES FROM STA 727+4' TO STA 767 AND RBL 22.21 AS PER SRM 51-10-02-0G-0.[07] RECEIVED; LOCATED AND DRILLED REPAIR ZEE CHANNEL FOR RIGHT SIDE STA 727+4 AND STA 767; RBL 22.21 IN REFERENCE WITH SRM 51-40-05-0G-0 AND SRM 51-40-06-0G-0; ZEE CHANNEL PART ORDERED IN REFERENCE WITH SRM 53-00-53-2R-5.;[08] VERIFIED STEP 6 AND 7;[09] LOCATED AND DRILLED HOLES ONTO SPLICE REPAIR AND FABRICATED RIGHT ZEE CHANNEL AND SPLICE REPAIR AT STA 727F IN REFERENCE WITH SRM 53-00-53-2R-5 REPAIR 5 ; SRM 51-40-05-0G-0 AND SRM 51-40-06-0G-0.;[10] VERIFIED STEP NO 9. OK TO TREAT AND PRIME Z CHANEL AND SPLICE REPAIRS.;[11] TREATED AND PRIMED RIGHT ZEE CHANNEL AND SPLICE REPAIR IN REFERENCE WITH AMM 51-21-41-370-801; AND AMM 51-21-72-370-804.;[12] VERIFIED STEP 11; OK TO ASSEMBLE REPAIR PARTS;[13] INSTALLED SPLICE REPAIR PARTS ON RIGHT 'Z' CHANNEL AS PER SRM 53-00-53-2R-5 REPAIR 5.;[16] INSTALLED 'Z' CHANNEL R/H FROM STA 727+4' TO STA 767 AND RBL 22.21 AS PER SRM 51-40-02-0G-0 WORK WAS ACCOMPLISHED BY JUSTIN MARTINEZ;[17] VERIFIED STEP 16

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