# SDR DALA2024050204875

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 30, 2024
- Submitted: May 2, 2024
- Operation: Air carrier
- Aircraft: [N3739P](https://openairdocs.org/aircraft/N3739P), registered now
- Make and model: Boeing 737832
- Aircraft serial: 30541
- Aircraft time: 69,738 hours, 30,312 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Part number: UNKNOWN
- Condition: Corroded
- Location: Bs 540
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2024050204875

## Discrepancy

(LOG 0319745) DURING OVERNIGHT OF APRIL 5, 2024 FOR AIR CONDITIONING SERVICE, MAINTENANCE DISCOVERED SEVERE CORROSION TO THE FLANGES OF THE STA 540 LOWER BULKHEAD CHORD P/N 111A2203-1 BETWEEN STR 28L AND STR 28R. CORROSION WAS ALSO FOUND ON THE EXTERNAL SKIN P/N 143A3232-12 AND THE 143A3233-2 A/C GROUND CONNECT DOUBLER. MAINTENANCE REPAIRED CORROSION PER ERA 617453-14.

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