# SDR ASAA2022030637776

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2022
- Submitted: March 30, 2022
- Operation: Air carrier
- Aircraft: [N251AK](https://openairdocs.org/aircraft/N251AK), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 62470
- Aircraft time: 20,652 hours, 6,747 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Part number: 143A321214
- Part serial: NA
- Condition: None
- 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/ASAA2022030637776

## Discrepancy

SAD DEFERRAL 12182341 REQUIRES RE-EVALUATION FOR PROER DEFERRAL CODE DUE ITS LOCATION IN THE RVSM EXTRA CRITICAL AREA. ( DEFECT LOCATED AT BS384, 4.5" ABOVE S17L) BEING REPORTED AS 1.5" LONG, 1.25W, AND .020" DEEP BS 384, STR16L- STR 17L. GROUNDED - YES. ON DEFERRAL.

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