# SDR ASAA2021050334902

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 3, 2021
- Submitted: May 27, 2021
- Operation: Air carrier
- Aircraft: [N553AS](https://openairdocs.org/aircraft/N553AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 34594
- Aircraft time: 51,729 hours, 17,804 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 147A566022
- Condition: Corroded
- Location: Bs 950-956 Rbl46
- 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/ASAA2021050334902

## Discrepancy

CORROSION FOUND ON BOTH UPPER AND LOWER SURFACES OF INTERCOSTAL LOCATED APPROX. 4 IN. FWD. OF R2 DOOR APPROX. STA. 950-956, RBL46. AREAS MARKED IN RED. GROUNDED - YES. CORROSION FOUND TO BE OUT OF LIMITS REF B737-800 SRM 53-70-51. ORIGINAL IS .205, REMAINING IS .180, .025 WAS REMOVED. REPLACED INTERCOSTALREF BAC DWG 147A5650 SH 70 & 71 REV "A" PO# 999439.9.

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