# N5123U: Cessna 206, registration cancelled 1993-10-20

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 20, 1993
- Status when cancelled: Triennial form not returned
- Airframe: [Cessna 206](https://openairdocs.org/model/cessna-206) (registry code 2073302)
- Data sheets: [TCDS A4CE](https://openairdocs.org/tcds/A4CE) (OpenAirDocs)
- Serial number: 2060123
- Type of aircraft: Fixed wing single engine
- Certificate issued: June 16, 1986
- Last registry action: June 25, 1992
- Mode S code: A66BB1
- Owners when cancelled: [Mumma Olen D](https://openairdocs.org/faa-owner/MUMMA%20OLEN%20D), [Mumma Lorraine M](https://openairdocs.org/faa-owner/MUMMA%20LORRAINE%20M)
- Location: [San Diego, CA](https://openairdocs.org/faa-place/CA/San%20Diego)
- Owner type: Co-owned
- Owner's area on the map: 32.9120° N, 117.1434° W: Placed by OpenAirDocs at the center of ZIP code 92126, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N5123U
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=5123U
- Page: https://openairdocs.org/deregistered/N5123U-1993-10-20

From the FAA registry file of November 7, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Cessna 206: https://openairdocs.org/model/cessna-206.md

## NTSB investigations (3)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX91LA409](https://openairdocs.org/ntsb/LAX91LA409), Sep 21, 1991: Cessna 206 (N5123U), Jamul, CA, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL DURING THE TAKEOFF GROUND RUN. CONTRIBUTING TO THE ACCIDENT WAS THE SOFT WET RUNWAY CONDITION.
- [NTSB DEN71FXA14](https://openairdocs.org/ntsb/DEN71FXA14), Nov 25, 1970: Cessna U206 (N5123U), Casper, WY, substantial damage
- [NTSB UNK64X1839](https://openairdocs.org/ntsb/UNK64X1839), May 19, 1964: Cessna 206 (N5123U), Pleasant Hill, IL, substantial damage

## FAA accident and incident reports (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 19910921043619A](https://openairdocs.org/incident/19910921043619A), Sep 21, 1991: Cessna 206CESSNA (N5123U), Jamul, CA, Substantial damage. Left gear dug into soft mud on edge of strip during takeoff. Swung into dirt berm,collapsed nose gear. Nosed over.
- [Incident 19861026071409I](https://openairdocs.org/incident/19861026071409I), Oct 26, 1986: Cessna 206CESSNA (N5123U), Jamul, CA. Reserve chute tangled with main chute, skydiver injured.

## Other aircraft with N5123U

- [Registered now](https://openairdocs.org/aircraft/N5123U): Air Tractor AT-802A, S/N 802A-0053, built 1997

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