# SDR ASAA2023022142148

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2023
- Submitted: March 3, 2023
- Operation: Air carrier
- Aircraft: [N581AS](https://openairdocs.org/aircraft/N581AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35188
- Aircraft time: 55,489 hours, 16,498 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Transition Panel
- Part number: 146S750231
- Condition: Corroded
- 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/ASAA2023022142148

## Discrepancy

AFT PIT LH TRANSITION PANEL UPPER AND LOWER SURFACES HAVE CORROSION FROM STA 727A+10 - 727C+10 (MARKED). GROUNDED - YES. REMOVED CORROSION AT AFT PIT LH TRANSITION PANEL FROM STA 727A+10 - 727C+10. ORIGINAL THICKNESS .040". REMOVED .006". REMAINING .034". FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-00-53-1A-2. TOOL#: T8224A CAL DUE: 15/JAN/24 PNL TO BE REPLACED ON TASK CARD G1774079 OP#: 20579

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