# SDR ASAA2025102062320

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2025
- Submitted: November 18, 2025
- Operation: Air carrier
- Aircraft: [N613AS](https://openairdocs.org/aircraft/N613AS), registered now
- Make and model: Boeing 737790
- Aircraft serial: 30163
- Aircraft time: 77,314 hours, 41,325 cycles
- System (JASC): [4910 · APU Cowling/Containment](https://openairdocs.org/jasc/4910)
- Part: Angle
- Part number: 148A861554
- 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/ASAA2025102062320

## Discrepancy

APU COMPARTMENT LT SIDE HAS CORROSION ON OUTER SIDE. GROUNDED - YES. REMOVED DAMAGE FOUND TO BE OUT OF LIMITS IAW BOEING SRM 53-80-13-1A-2. REMVOE & REPLACED ANGLE IAW BOEING SRM 51-40-02-0G-0.  W= .850" O= .063 R= .017 L= 48.0" D= .046.

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