# SDR SWAA2022042589243

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 29, 2022
- Submitted: April 25, 2022
- Operation: Air carrier
- Aircraft: N762SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27876
- Aircraft time: 75,107 hours, 44,385 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Condition: Corroded
- Location: Fwd Cargo
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2022042589243

## Discrepancy

FWD CARGO COMPARTMENT LH Z CHANNEL STA 400 TO STA 500D HAS SEVERAL SPOTS OF CORROSION AT HOLE SCREW. CORROSION AT HOLES AUTOMATICALLY OUT OF LIMITS / [01] LOCATED AND DRILLED L/H ZEE CHANNEL STA.400 TO STA.500D REF. B737-7 SRM 51-40-05-0G-0;[02] VERIFIED STEP 1<BR><BR>OK TO TREAT AND PRIME HOLES;[03] TREATED AND PRIMED ZEE CHANNEL REF. B737-7 SRM 51-20-01-0G-0;[04] VERIFIED STEP 3;[05] INSTALLED NUT PLATES ON ZEE CHANNEL REF. BOEING DRAWING #143A7500;[06] FABRICATED FWD CARGO COMPARTMENT L/H ZEE CHANNEL STA. 400 TO STA. 500D; REF; USED B737-7 SRM 51-40-05-0G-0; 51-20-01-0G-0; AND DRAWING #143A7500. BEING INSTALLED ON TASK CARD #TTG8Q004E0QK;[07] AND B737-7 SRM 51-40-02-0G-0;[08] ACTION: VERIFIED STEP 6 AND 7

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