# SDR A6WA202304018617

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2023
- Submitted: May 30, 2023
- Operation: Air carrier
- Aircraft: [N470ZW](https://openairdocs.org/aircraft/N470ZW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7927
- Aircraft time: 38,125 hours, 36,944 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: 601R31145
- Condition: Corroded
- Part time: 38,125 hours, 36,944 cycles
- 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/A6WA202304018617

## Discrepancy

CORROSION ON CABIN FLOOR SILL LH AT FS424.00 TO FS424.00+4 AND LBL35-38. *****AIRCRAFT REMOVED FROM SERVICE********* BLENDED 4 AREAS OF CORROSION ON LH FLOOR SILL AT F424.00 TO FS424.00+4 AND LBL 35-38.  P2-L=1.800IN X W=1.400IN X D=0.002 P3-L=0.700IN X W=0.500IN X D=0.002 P4-L=1.800IN X W=0.800IN X D=0.200 P5-L=1.600IN X W=0.800IN X D=0.200   ORIGINAL THICKNESS 00.80 REMAINING THICKNESS .078 MATERIAL  LOSS .002.  PERFORMED HFEC WITH NO INDICATIONS. RESTORED PROTECTIVE FINISH . ALL WORK WITHIN LIMITS WAS PERFORMED IAW ASAP EA# AWAC-CRJ 253-01986 REV A DATE 5/27/2023. WORK PERFORMED UNDER AERSALE  WORK ORDER 003911 CARD NO.20164, TT: 38,125:30 TC: 36,944

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