# SDR FDEA202111302953

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 30, 2021
- Submitted: December 2, 2021
- Operation: Air carrier
- Aircraft: [N990FD](https://openairdocs.org/aircraft/N990FD), registered now
- Make and model: Boeing 757-200 SERIES
- Registry model: [Boeing 757-200 SERIES](https://openairdocs.org/model/boeing-757-200-series) (OpenAirDocs)
- Aircraft serial: 22909
- Aircraft time: 86,337 hours, 44,162 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Stringer Splice
- Part number: 146N382021
- Part serial: 22909
- Condition: Corroded
- Location: Zone 100
- Part time: 86,337 hours, 44,162 cycles
- Stage of operation: UK
- How discovered: U
- Nature of condition: O, O, O
- Precautionary procedure: O, O, O, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202111302953

## Discrepancy

AFT CARGO , STRINGER SPLICE CORRODED AT STA 1620 LBL28 REMOVED CORROSION ON STRINGER SPLICE IAW B757-200 SRM 53-00-03-1A . ORIGINAL MAT. THICKNESS   IS .100 , MAT. REMOVED .004 , REMAINING THICKNESS IS .096 . IN LIMITS IAW B757-200 SRM 53-00-53 DETAIL   I FIG 101 . ALODINE AND PRIMED IAW B757-200 SRM 51-20-01 AND TOPCOATED IAW B757-200 AMM 51-21-  00

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