# SDR SIMA20261025002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 25, 2026
- Submitted: October 28, 2026
- Operation: Air carrier
- Aircraft: [N217NN](https://openairdocs.org/aircraft/N217NN), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000515
- Aircraft time: 27,945 hours, 18,628 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Seal Rest
- Part number: 17066804403
- Condition: Corroded
- Location: Zone 800
- 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/SIMA20261025002

## Discrepancy

FWD CARGO DOOR CUTOUT LOWER MIDDLE SEAL REST CORRODED AS MARKED.LEVEL II CORROSION AND SSI 53-21-009. (MAJOR REPAIR) (LEVEL 2 CORROSION) REMOVED CORROSION BY BLENDING ON FWD CARGO DOOR CUTOUT LOWER MIDDLE SEAL REST AT 6EA LOCATIONS WITH MEASURE MENTS OF AREA #1 L= 1.3", W= 0.6", REMAINI NG THICKNESS= 0.046", NOMINAL THICKNES S= 0.0787", AREA #2 L= 0.9", W= 0.45", REMAIN ING THICKNESS= 0.059", NOMINAL THICKNES S= 0.0787", AREA #3 L= 1.5", W= 0.5", REMAINI NG THICKNESS= 0.053", NOMINAL THICKNES S= 0.0787", AREA #4 L= 01.5", W= 0.55", REMAI NING THICKNESS= 0.047", NOMINAL THICKNE SS= 0.0787", AREA #5 L= 1.4", W= 0.6", REMAIN ING THICKNESS= 0.041", NOMINAL THICKNES S= 0.0787", AREA #6 L= 1.4", W= 0.5", REMAINI NG THICKNESS= 0.044", NOMINAL THICKNESS= 0.0787" AND FOUND OUT OF MAXIMUM ALLOWABLE LIMITS IAW SRM 53-21-11/AD 001.  REMOVED FWD CENTER FWD CARGO DOOR FR AME FITTING IAW AMM 53-21-29/400.   REMOVED AFT CENTER FWD CARGO DOOR FRAME FITTING IAW AMM 53-21-29/400  REMOVED FWD CARGO DOOR CUTOUT LOWER MIDDLE SEAL REST IAW SRM 51-40-08 LOCATED AND DRILLED FWD CARGO DO OR CUTOUT LOWER MIDDLE SEAL REST IAW SRM 51-40-02 R & R WITH NEW FWD CARGO DOOR CUTOUT LOWER MI DDLE SEAL REST IAW SRM 51-40-08. APPLIED TOPCOAT TO THE FWD CARGO DOOR CUTOUT LOW ER MIDDLE SEAL RE ST IAW  SRM 51-23-06 AND ETN-EJ-51-015 REINSTALLED AFT CENTER FWD CARGO DOOR FRAME FITTI NG IAW AMM 53-21-29/400.

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