# SDR VNAA2019122699901

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 26, 2019
- Submitted: December 26, 2019
- Operation: Air carrier
- Aircraft: [N559NN](https://openairdocs.org/aircraft/N559NN), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15343
- Aircraft time: 12,583 hours, 11,416 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Step
- Condition: Cracked
- Location: Pax Door
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VNAA2019122699901

## Discrepancy

PAX DOOR STEP AFT STRUCTURE CRACKED AT 4 LOCATIONS 6TH, 5TH, 4TH AND SECOND STEPS IN CORNERS.  REMOVED AFT COUNTER BALANCE SYSTEM IAW AMM 52-11-17-000-802.  REINSTALLED SAME SERVICEABLE AFT COUNTER BALANCE SYSTEM IAW AMM 52-11-17-400-802-A01, STEPS 1.A THROUGH 4.A.13.  REMOVED AFT COUNTER BALANCE MOUNT IAW SRM 51-42-06-001-A01. INSTALLED AFT COUNTER BALANCE MOUNT IAW SRM 51-42-06-001-001-A01.  REMOVED STEP IAW SRM 51-42-21-001-001-A01.  REINSTALLED CENTER STEP ASSY IAW SRM 51-42-21-001-001-A01.  REPAIR REQUIRED FOR STEP 6, ZONE 1 OF AFT WEB.  CUTOUT DAMAGED AREA OF STEP 6, ZONE 1 OF AFT WEB IAW SRM 52-11-04-201-004-A01.  NDT REQUIRED FOR CUTOUT IAW SRM 52-11-04-201-004-A01. PERFORMED EDDY CURRENT OF CUTLINE EDGES OF ZONE 1 IAW SRM 52-11-04-201-004-A01, PAGE 209, STEP 2. NO INDICATIONS NOTED AT THIS TIME.  4TH AND 5TH (ZONE 2,3 AND 4) REQUIRES REPAIR.  REFERENCE JOB 21534341, OP 93 FOR WORK PERFORMED.

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