# SDR SCNA202302100001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 24, 2023
- Submitted: February 10, 2023
- Operation: Air carrier
- Aircraft: [N8059A](https://openairdocs.org/aircraft/N8059A), registered now
- Make and model: Boeing 737-83N
- Registry model: [Boeing 737-83N](https://openairdocs.org/model/boeing-737-83n) (OpenAirDocs)
- Aircraft serial: 29120
- Aircraft time: 82,356 hours, 32,600 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Not Reported
- Part number: 143A7502U159
- Part serial: NOTREPORTED
- Condition: Corroded
- Location: Not Reported
- 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/SCNA202302100001

## Discrepancy

DEFECT TC 206200000 NR00128: EVIDENCE OF CORROSION ON RH WING REAR SPAR AROUND AFT BOOST PUMP #2   RESOLUTION: CORROSION FOUND IN 2 EA AREAS AT AFT BOOST PUMP #2, RH WING REAR SPAR UPPER AREA MEASURES 3.25"L X 2.5" W X 0.046"D, LOWER AREA MEASURES 4.5"L X 3.5"W X 0.081"D BOTH AREAS FOUND IN LIMITS PER SRM 57-20-10-1A-3#5.D, FIGURE 105, PERFORMED FLAP PEEN AND APPLIED PROTECTIVE FINISHES PER SRM 57-20-10-1A--3, #2.C.(3,4 AND 6)

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