N923SM — 1991 Robinson Helicopter Company R22 MARINER
Active registrationChecked against FAA & NTSB records · as of Jul 15, 2026
N923SM appears in 1 NTSB accident record (most recent 2018, minor injuries). Registration and accident data compiled from public FAA and NTSB records as of Jul 15, 2026.
Aircraft record
- Serial number
- 1923M
- Manufacturer
- Robinson Helicopter Company
- Model
- R22 MARINER
- Year
- 1991
- Category
- Rotorcraft
- Engine
- Lycoming 0-320 Series
- Registration
- Active
- Registered to
- N923sm Llc — Rehoboth Beach, DE
Accident & incident history
The pilot's failure to properly remove and secure the tie-down ropes during the preflight inspection, which resulted in the ropes becoming entangled in the rotor head swashplate and pitch control rods during flight and the subsequent loss of pitch control.
Registration timeline
Ownership and registration events for this airframe (the 1991 Robinson Helicopter Company R22 MARINER).
- Nov 10, 2014registered — N923sm Llc
Earlier aircraft on this N-number
The tail number N923SM was previously assigned to a different aircraft. A registration number can be reused across unrelated airframes over decades — these are not the 1991 Robinson Helicopter Company R22 MARINER above.
- until Apr 19, 1989Piper PA-34-200T (s/n 347970069)
Frequently asked
- Has N923SM been in an accident?
- Yes. N923SM appears in 1 NTSB accident record, the most recent in 2018.
- What kind of aircraft is N923SM?
- N923SM is a 1991 Robinson Helicopter Company R22 MARINER (rotorcraft), serial number 1923M.
- Who is N923SM registered to?
- N923SM is registered to N923sm Llc of Rehoboth Beach, DE. Registration status: active.
The full N923SM report
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- Full NTSB investigation narratives for all 1 record — the complete text, not just the cause line
- Pre-buy question list generated from this aircraft’s actual records
- Complete registration & deregistration timeline, print-ready
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