# SDR ASAA2026021964814

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 19, 2026
- Submitted: March 12, 2026
- Operation: Air carrier
- Aircraft: [N428AS](https://openairdocs.org/aircraft/N428AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36353
- Aircraft time: 30,340 hours, 9,447 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Support Angle
- Part number: 147A56908
- Condition: Corroded
- Location: Zone 900
- 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/ASAA2026021964814

## Discrepancy

LAV SUPPORT ANGLE AT STA 917 LBL54 HAS CORROSION. GROUNDED - YES. REMOVED CORROSION-ORIGINAL THICKNESS .150, REMOVED .110, REMAINING IS .040 AND REQUIRES REPLACEMENT DUE TO NO LIMITS GIVEN IN THE SRM. REMOVED AND REPLACED INTERCOSTAL P/N 147A5690U8 PO#1141724.1. IAW B737-900ER SRM 51-40-02 REF BAC DWG 147A5680 REV-.

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