# N99LR: 1970 Cessna 172K, registration cancelled 2004-03-06

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 6, 2004
- Status when cancelled: Triennial form not returned
- Airframe: [Cessna 172K](https://openairdocs.org/model/cessna-172k) (registry code 2072430)
- Engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508)
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12), [TCDS E-274](https://openairdocs.org/tcds/E-274) (OpenAirDocs)
- Serial number: 17259099
- Year built: 1970
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal, utility
- Airworthiness date: August 6, 1970
- Certificate issued: May 4, 1979
- Last registry action: January 20, 2004
- Mode S code: ADD154
- Owner when cancelled: [Robinson Leonard L](https://openairdocs.org/faa-owner/ROBINSON%20LEONARD%20L)
- Location: [Menlo Park, CA](https://openairdocs.org/faa-place/CA/Menlo%20Park)
- Owner type: Individual
- Owner's area on the map: 37.4513° N, 122.1823° W: Placed by OpenAirDocs at the center of ZIP code 94025, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N99LR
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=99LR
- Page: https://openairdocs.org/deregistered/N99LR-2004-03-06

From the FAA registry file of October 27, 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 172K: https://openairdocs.org/model/cessna-172k.md

## NTSB investigations (1)

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 LAX04FA096](https://openairdocs.org/ntsb/LAX04FA096), Jan 20, 2004: Cessna 172K (N99LR), Grass Valley, CA, destroyed, 2 fatal. Probable cause: the pilot's continued visual flight into instrument meteorological conditions and failure to maintain an adequate terrain/object clearance altitude. Also causal was the pilot's improper in-flight…

## FAA accident and incident reports (1)

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 20040119000969A](https://openairdocs.org/incident/20040119000969A), Jan 19, 2004: Cessna 172K (N99LR), Grass Valley, CA, Destroyed, 2 fatal. (-23) Aircraft crashed into trees 1 mile south east from Grass Valley airport fatally injuring both occupants on board (biohazard area). The aircraft was…

## Other aircraft with N99LR

- [Cancelled 2010-11-29](https://openairdocs.org/deregistered/N99LR-2010-11-29): Roberts Donald L FALCON F-9, S/N F 4237. Triennial form not returned. Owner: [Roberts Donald L](https://openairdocs.org/faa-owner/ROBERTS%20DONALD%20L), [Fairdale, KY](https://openairdocs.org/faa-place/KY/Fairdale)

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