# SDR ASAA2018112427458

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 24, 2018
- Submitted: December 19, 2018
- Operation: Air carrier
- Aircraft: [N618AS](https://openairdocs.org/aircraft/N618AS), registered now
- Make and model: Boeing 737790
- Aircraft serial: 30543
- Aircraft time: 59,712 hours, 28,038 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 147A56602
- Condition: Corroded
- Location: Fuselage
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018112427458

## Discrepancy

MAIN CABIN, AFT WET AREA, INTERCOSTAL AT STA 947.5-STA 967, RBL 50.92 CORRODED. GROUNDED - YES. EVALUATED THE INTERCOSTAL AT STA 947.5 - STA 967, RBL 50.92, WL 208.1 AND FOUND TO BE OUT OF LIMITS IAW SRM 53-70-51-1A-1 FIG 103, DETAIL C. ORIGINAL THICKNESS 0.2050, REMAINING THICKNESS 0.125, REMOVED 0.080.

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