# SDR ASAA2026081168263

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 2026
- Submitted: August 27, 2026
- Operation: Air carrier
- Aircraft: [N913AK](https://openairdocs.org/aircraft/N913AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44079
- Aircraft time: 19,672 hours, 5,918 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Angle
- Part number: 146A940384
- Condition: Corroded
- Location: Zone 100
- 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/ASAA2026081168263

## Discrepancy

AFT CARGO RT LOWER FRAME BS 727L AT TRANSITION PANEL CORRODED AT NUTPLATE. GROUNDED - YES. REMOVED CORROSION FROM THE AFT PIT R/H LOWER FRAME LINER BRACKET AT STA 727L STR 25R IAW B737-9 SRM 53-00-07-1A-1.2.B. ORIG THICKNESS IS .063" IAW B737-9 SRM 53-60-07-01-1 TABLE 3. REMOVED .009", REMAINING THICKNESS IS .054" AND IS FOUND TO BE OUT OF LIMITS IAW B737-9 SRM 53-00-07-1A-1.4.A.(2). REMOVED AND REPLACED AFT CARGO R/H LOWER FRAME LINER BRACKET IAW B737-9 SRM 51-40-02, SRM 51-40-05, BOEING DWG 146A1251 REV:-.

---
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.