# SDR VNAA2020032041101

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 19, 2020
- Submitted: March 20, 2020
- Operation: Air carrier
- Aircraft: [N552NN](https://openairdocs.org/aircraft/N552NN), registered now
- Make and model: Cndair CL6002D24
- Aircraft serial: 15328
- Aircraft time: 13,458 hours, 12,272 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Unknown
- Condition: Noisy
- Location: Nlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VNAA2020032041101

## Discrepancy

LOUD BANGING NOISE COMING FROM NOSE AFTER GEAR RETRACTION.GEAR INDICATIONS NORMAL.NO ISSUES NOTED DURING GEAR EXTENSION OR TAXI. C/W EXTERNAL ZONAL INSPECTION OF THE NLG AND DOORS IAW CRJ900 AMM.NO DAMAGE/DEFECTS NOTED. DEFERRED LANDING GEAR RETRACTION SYSTEM. PERFORMED OPERATIONAL TEST OF THE LANDING GEAR EXTENSION/RETRACTION SYSTEM IAW CRJ 900 AMM OPS CHECK GOOD AT THIS TIME, THIS CLEARS MEL

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