# SDR VNAA202608310013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 2026
- Submitted: August 31, 2026
- Operation: Air carrier
- Aircraft: [N551NN](https://openairdocs.org/aircraft/N551NN), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15327
- Aircraft time: 27,110 hours, 23,887 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Door Sill
- Part number: MM67035655003
- 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/VNAA202608310013

## Discrepancy

CORROSION ON LOWER SILL BTW FS1000.00 AND FS1047.00 AT AFT BAGGAGE DOOR CUTOUT.   CORROSION ON LOWER SILL BTW BS 1000 AND 1047 AT AFT CARGO DOOR CUTOUT WAS REMOVED IAW SRM 51-21-06-001-001-A01, & EVALUATED OUT OF LIMITS IAW SRM 53-61-23-201-001-A01, & REPLACED IAW SRM 51-42-06-001-001-A01, SRM 51-42-21-001-001-A01, AND SRM 51-42-13-001-001-A01.

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