# SDR ASAA2021070135486

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2021
- Submitted: July 26, 2021
- Operation: Air carrier
- Aircraft: [N612AS](https://openairdocs.org/aircraft/N612AS), registered now
- Make and model: Boeing 737790
- Aircraft serial: 30162
- Aircraft time: 65,388 hours, 32,555 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Channel
- Part number: 147A85428
- Condition: Corroded
- Location: Bs 907-1006
- 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/ASAA2021070135486

## Discrepancy

AFT WET AREA R-2 MOP SILL HAS MULTIPLE AREAS OF CORROSION. GROUNDED - YES. BLENDED CORROSION FOUND TO BE OUT OF LIMITS IAW B737-700 SRM 57-70-15-1A-1 REMOVED AND REPLACED MOPSILL IAW B737-700SRM 51-40-02-0G-0W= 1.80 O=.080 R= .070 L= 3.20 D= .010.

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