# SDR VNAA202608010001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2026
- Submitted: August 1, 2026
- Operation: Air carrier
- Aircraft: [N644NN](https://openairdocs.org/aircraft/N644NN), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15437
- Aircraft time: 15,145 hours, 15,678 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Web
- Part number: CC670392213
- 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/VNAA202608010001

## Discrepancy

SEVERAL CORRSION ON SETTLEMENT AREA OF FAIRING ACCESS PANEL 194AB (AFT SIDE), ON SETTLEMENT AREA OF ACCESS PANELS 174BZ, 174DZ 173BZ AND 173DZ ALSO IN ANGLE OF KEEL BEAM NEAR FS 669.40 AT MLG WHEEL AREA.  CORROSION WERE REMOVED ON SETTLEMENT AREA OF FAIRING ACCESS PANEL 194AB AFT SIDE, ON SETTLEMENT AREA OF ACCESS PANELS 174BZ, 174DZ 173BZ AND 173DZ ALSO IN ANGLE OF KEEL BEAM NEAR FS 669.40 AT MLG WHEEL AREA WERE REMOVED PER SRM 51-21-06-001-001-A01, MEMBER SEAL & ANGLE OF KEEL BEAM NEAR FS 669.40 WERE EVALUATED AND THEREFORE THEY ARE WITHIN LIMITS IAW SRM 53-00-00-101-001-A01, BUT MACHING WEB, DIAPHRAGM ASSY,  ANGLE & MEMBER SEAL WERE EVALUATED AND THEREFORE THEY ARE NOT WITHIN LIMITS PER CRJ 900 SRM 53-00-00-101-001-A01 AND WERE REPLACED IAW SRM 51-41-02-001-001-A01, SRM 51-42-10-001-001-A01, SRM 51-42-06-001-001-A01 AND SRM 51-42-21-001-001-A01

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