# SDR ASAA2024021248095

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2024
- Submitted: February 28, 2024
- Operation: Air carrier
- Aircraft: [N403AS](https://openairdocs.org/aircraft/N403AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41730
- Aircraft time: 42,009 hours, 13,349 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Doubler
- Part number: 146A32397
- Part serial: NSN
- Condition: Corroded
- Location: Bs 727 S27l/R
- 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/ASAA2024021248095

## Discrepancy

LOWER FUSELAGE STA727 CENTER DRAIN DOUBLER HAS CORROSION AROUND FASTNERS  GROUNDED - YES. REMOVED AND REPLACED CENTER DRAIN DOUBLER AT LOWER FUSELAGE STA 727 IAW B737-900ER SRM 51-40-02 AND DWG NO. 146A0070 REV A. DWG 146A3239 REV -, BOEING CONTROL # 270917615.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.