# SDR ASAA2024111854498

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 18, 2024
- Submitted: December 14, 2024
- Operation: Air carrier
- Aircraft: [N435AS](https://openairdocs.org/aircraft/N435AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43292
- Aircraft time: 39,942 hours, 12,478 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Transition Panel
- Part number: 146A7502
- 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/ASAA2024111854498

## Discrepancy

AFT CARGO L/H TRANSITION PANEL HAS CORROSION STA 727E TO 727I. GROUNDED - YES. REMOVED CORROSION FROM AFT PIT TRANSITION PANEL FROM STA 727E-727I IAW B737-900ER SRM 53-00-53-1A-2. ORIGINAL THICKNESS .040 IAW B737-900ER SRM 53-60-53-01.2 REMOVED .010 AND .030 REMAINING OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2. REMOVED AND REPLACED AFT PIT TRANSITION PANEL FROM STA 727E-727I IAW B737-900ER 53-00-53-2R-5.

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