# NTSB LAX88FA274: Learjet 23, N745F, Perris, CA, July 30, 1988

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: July 30, 1988, 11:40 local (18:40 UTC)
- Place: Perris, CA
- Location: 33.7825° N, 117.2286° W: Placed by OpenAirDocs: center of Perris, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.7825&lon=-117.2286&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report October 16, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 25853
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX88FA274
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25853/pdf
- Page: https://openairdocs.org/ntsb/LAX88FA274

## Probable cause

THE PILOT DECIDED TO CONDUCT HIS FLIGHT WITH KNOWN AIRCRAFT DEFICIENCIES. INDUCED COMPANY PRESSURE TO DELIVER THE AIRCRAFT TO ITS DESTINATION IS CONSIDERED TO HAVE BEEN A FACTOR IN THE ACCIDENT.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - in flight, approach - vfr pattern - base leg/base to final
  - autopilot/flight director - inoperative (contributing factor)
  - operation with known deficiencies in equipment - attempted, pilot in command (cause)
  - fuel system,transfer pump - inoperative (contributing factor)
- In flight collision with terrain/water, approach - vfr pattern - final approach

## Aircraft

- Registration: [N745F](https://openairdocs.org/deregistered/N745F-1990-02-13), registration cancelled 1990-02-13, S/N 077 (OpenAirDocs)
- Reported make and model: Learjet 23
- Registry model: [Learjet 23](https://openairdocs.org/model/learjet-23) (registry code 5170102) (OpenAirDocs)
- Category: Airplane
- Serial number: 23-077
- Engines: GE CJ610-4 2850 lbs thrust turbo jet
- Damage: Destroyed
- Fire: On-Ground
- Flight: Positioning, Part 91
- Registered owner: Jet Management, Inc.
- Airworthiness certificate: Standard, Normal
- Departed: TUS, TUCSON, AZ
- Destination: CNO, CHINO, CA
- Flight plan: IFR
- Airport: RIV, March Afb, runway 32, 13,300 × 300 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; commercial, airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; flight hours: 6,800 total, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 7 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 86 °F, dew point 63 °F
- Altimeter: 30.00 inHg
- Observed at: RIV, 2 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19880730028329A](https://openairdocs.org/incident/19880730028329A), Jul 30, 1988: Lear 23LEAR, Riverside, CA, Destroyed, 2 fatal. Had uneven fuel flow and imbalance. Diverted to nearest airport, crashed and burned. Yaw damper inop.

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.

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