# SDR ASAA2026040965745

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2026
- Submitted: April 29, 2026
- Operation: Air carrier
- Aircraft: [N528AS](https://openairdocs.org/aircraft/N528AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35695
- Aircraft time: 52,609 hours, 19,080 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Shield
- Part number: 146A812712
- 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/ASAA2026040965745

## Discrepancy

MULTIPLE SPOTS OF CORROSION ON THE SHIELD ON THE RIGHT HAND SIDE OF THE AFT CARGO PIT BETWEEN STATIONS 767 AND 787,18 INCHES FROM THE BUTT LINE. GROUNDED - YES. REMOVED CORROSION FROM THE AFT PIT, FWD SHIELD FROM STA 767 TO 787 IAW B737-800 SRM 53-60-15-1A-1.2.A ORIG THICKNESS IS .050" IAW B737-800 SRM 53-60-15-01-1 TABLE 4 REMOVED .010" REMAINING THICKNESS IS .040" AND IS FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-60-15-1A-1.4-G.(2) REMOVED & REPLACED THE AFT PIT, FWD SHIELD IAW B737-800 SRM 51-40-05 AND SRM 51-40-02.

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