Aircraft record

N992321963 Hiller OH-23G

DeregisteredUnclaimedSource: FAA, updated Oct 20, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Dec 1, 2014.

Safety record in brief:1 NTSB accident (substantial damage, Mar 1987)1 AD may apply

Registration: Deregistered
Last based in: Delano, CA; owner city / state
Engine: 0-540 SERIES · 250 hp; Lycoming
Owners: 1; since 1975
NTSB events: 1; substantial, 1987
ADs may apply: 1; confirm with A&P
Service reports: 0; since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026

Last registered owner: San Joaquin Helicopters
Owner type: Corporation
City, state: Delano, CA
Certificate issued: Feb 4, 1975
Canceled: Dec 1, 2014
Airworthiness: Standard · Normal
Airworthiness date: Feb 28, 1975

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer: Hiller
Model: OH-23G
Year: 1963
Serial number: 1616
Aircraft type: Rotorcraft
Category: Land
Certification: Type Certificated
Seats: 4
Engines: 1
Max takeoff weight: Up to 12,499 lb
Type certificate data sheet: 4H11
Mode S code: ADDCED

Engine

Make and model: Lycoming 0-540 Series
Type: Reciprocating
Power: 250 hp

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records

1975 – 2014San Joaquin HelicoptersDelano, CA

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026

NTSB events (1)

Accident · substantial damage

Mar 8, 1987 · Delano, CA

DURING AN AERIAL APPLICATION FLIGHT, THE PILOT RETURNED TO THE LOADING TRUCK FOR APPROXIMATELY 5 ADDITIONAL GALLONS OF CHEMICAL TO FINISH THE APPLICATION. THE LOADER; HOWEVER, LOADED 70 GALLONS AND WHEN THE PILOT TOOK OFF THE ROTOR RPM BEGAN TO BLEED OFF. THE PILOT ATTEMPTED UNSUCCESSFULLY TO RELAND ON THE TRUCK BY BACKING THE HELICOPTER. HE OVERSHOT THE LANDING AREA AND COLLIDED WITH NEARBY…

Damage: Substantial
Injuries: None
Report: LAX87DVA04

From NTSB records; matched by serial number.Read NTSB report (search CAROL for LAX87DVA04)

ADs published since 1998 that may apply (1)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

AD	Subject	Effective	Applies to
97-10-16	Hiller Aircraft Corporation Model UH- 12, UH-12A, UH-12B, UH-12C, UH-12D, UH-12E…	Jun 27, 1997	Airframe (OH-23G)Only with: Having control rotor blade spar tube P/N 36003, 36006, 36129, 36129-25, 36203, 36203-15, 36203-21, or 36209-3, or cuff P/N 36101-1, 36101-4, 36108, 36115-1, 36115-4, 36115-6, 36115-8, or 36124 installed; includes UH-12D and UH-12E converted to turbine power per STC SH177WE and SH178WE.

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (0)

No Service Difficulty Reports found for this airframe since 1995.

Sources

FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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