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ICON Aircraft has received service reports of the Nose Landing Gear (NLG) collapsing during ground operations while performing high power runups or taxiing, along with reports of incorrect landing gear indications in flight. ICON has determined that the cause of these incidents is the degradation (or failure) of the NLG actuator stop switch, which can be a result of inadvertent switch damage, poor performance of the switch, or long-term degradation of the switch itself. There has also been several cases of NLG collapses following inadvertent retraction of the landing gear handle with weight on the wheels. If for any reason the NLG is retracted with weight on wheels, the NLG actuator should be replaced since internal damage to the actuator has likely occurred. This bulletin will detail a recurring inspection of the NLG actuator rigging and NLG actuator stop switches.

https://www.iconaircraft.com/wp-cont...B-032420-A.pdf

DATE ISSUED: 6/4/2020
DATE EFFECTIVE: 6/8/2020
S/N: 00001 – 00122
TIME OF COMPLIANCE: Within 25 hours of issuance, then recurring each 100 hr or annual condition inspection

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This SB has been superseded with SB-032420-B

NOTE: This Service Bulletin (SB-032420-B) is obsolete if Service Bulletin SB-080323-A, Nose Gear Collapse has been complied with.

https://www.iconaircraft.com/wp-cont...B-032420-B.pdf

S/N: 00001-00015, 00017-00033, 00035-00036, 00038-00086, 00088-00182, 00184-00188
TIME OF COMPLIANCE: Recurring every 100 hr or annual condition inspection (whichever comes first).

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This SB has been superseded with SB-032420-C

https://www.iconaircraft.com/wp-cont...p-Switches.pdf

Revise time of compliance from 100hr/1yr to 50hr/6mo, until SB-012724-A Retrofit is completed, and upgrade to mandatory.