Service difficulty report · None · Boeing 7377H4

Difficulty date
August 4, 2022
Submitted
August 29, 2022
Operation
Air carrier
Aircraft
N261WN
Make and model
Boeing 7377H4
Aircraft serial
32517
Aircraft time
53,121 hours, 31,580 cycles
Part
None
Condition
Corroded
Location
Aft Cargo
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 AFT CARGO COMPARTMENT R/H FLOOR SUPPORT ZEE CHANNEL S-25R FROM STA 727 TO 767 / [01] REMOVED CORROSION AT R/H ZEE CHANNEL S-25R FROM STA 727 TO STA 767 AS PER B 737-7 SRM51-10-02-0G-007] LOCATED AND DRILLED NEW AFT CARGO R/H Z-CHANNEL AS PER B 737-7 SRM =51-40-05-0G-0;[08] VERIFIED STEP 7. OK TO TREAT AND PRIME.;[09] TREATED AND PRIMED NEW Z-CHANNEL AS PER B 737-7 AMM 51-21-41-370-803 AND AMM 51-21-72-370-804;[10] VERIFIED AMT STEP 9. OK TO INSTALL NUT PLATES.;[11] CORRECTED MEASUREMENT TABLE;[12] INSTALLED NUT PLATES ON NEW R/H ZEE CHANNEL AS PER B737-700 SRM 51-40-10-2R-0;[13] REMOVED CORROSION AT R/H ZEE CHANNEL S-25R FROM STA 727 TO STA 767 AS PER B 737-7 SRM51-10-02-0G-0. EVALUATED REWORKED AREA ORG. MAT. .040 MAT REMAINING .015 MAT REMOVED .025 FOUND TO BE OUT OF LIMITS AS PER B 737-7 SRM 53-00-53-1A-2. REMOVED AT AFT CARGO COMP R/H SUPPORT ZEE CHANNEL S-25 STA 727 TO STA767IAW B737 SRM 51-40-02-0G-0. LOCATED AND DRILLED NEW AFT CARGO R/H Z-CHANNEL AS PER B 737-7 SRM =51-40-05-0G-0. TREATED AND PRIMED NEW Z-CHANNEL AS PER B 737-7 AMM 51-21-41-370-803 AND AMM 51-21-72-370-804. INSTALLED NUT PLATES ON NEW R/H ZEE CHANNEL AS PER B737-700 SRM 51-40-10-2R-0.;[14] VERIFIED AND INSPECTED STEP #11; #12; AND #13. FINAL.

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