# SDR ASAA2021070635443

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2021
- Submitted: July 22, 2021
- Operation: Air carrier
- Aircraft: [N492AS](https://openairdocs.org/aircraft/N492AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 44110
- Aircraft time: 20,808 hours, 6,661 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shield
- Part number: 146A812712
- Condition: Corroded
- Location: Aft Cargo
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021070635443

## Discrepancy

AFT CARGO DOOR SURROUND STRUCTURE FWD SHIELD UPPER AND LOWER SURFACES CORRODED. GROUNDED - YES. REMOVED CORROSION AND CHECKED LIMITS FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 535-60-15-1A-1 DETAIL D. REMOVED AND REPLACED SHIELD IAW B737-900ER SRM 51-40-02-0G-0W 1.0 O .050 R .026 L 211 D .024.

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