# NTSB LAX83FUG20: Grumman American AA-5A, N26798, Chino, CA, August 3, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: August 3, 1983, 11:51 local (18:51 UTC)
- Place: Chino, CA
- Location: 33.9758° N, 117.6539° W: Placed by OpenAirDocs from NTSB’s distance and direction from CHINO (CNO), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.9758&lon=-117.6539&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 23548
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX83FUG20
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23548/pdf
- Page: https://openairdocs.org/ntsb/LAX83FUG20

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, takeoff - initial climb
  - ignition system,magneto - shorted (cause)
- Forced landing, descent - emergency
  - terrain condition - crop (contributing factor)

## Analysis

THE PILOT STATED THAT ON TAKEOFF FROM A TOUCH AND GO LANDING THE ACFT LOST POWER. THE FUEL BOOST PUMPS WERE ON AND THE MIXTURE WAS FULL RICH. HE SWITCHED FUEL TANKS BUT THE ENGINE DID NOT REGAIN POWER. THE ACFT WAS LANDED IN A HAY FIELD. A POST ACCIDENT RUN OF THE ENGINE DISCLOSED A SHORTED LEAD FROM THE NO. 2 MAGNETO.

## Aircraft

- Registration: N26798 (not matched to a registry record)
- Reported make and model: GRUMMAN AMERICAN AA-5A (AMERICAN A)
- Category: Airplane
- Serial number: AA5A0732
- Airframe hours: 1316
- Engines: LYCOMING O-320-E2G 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Great American Aero
- Registered owner: Stanley J Pelphrey
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, November 19, 1982, 153 hours before
- Departed: FUL, FULLERTON, CA
- Airport: CNO, Chino, runway 26, 3,800 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 155 total, 80 in this make and model, 109 as pilot in command, 3 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 5 statute miles
- Lowest ceiling: none
- Temperature: 95 °F, dew point 7 °F
- Altimeter: 30.00 inHg

## 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 19830803037779A](https://openairdocs.org/incident/19830803037779A), Aug 3, 1983: Gulstm AA5A, Chino, CA, Substantial damage. Engine lost partial power on climbout. Struck hay bales on off airport landing. No cause of power failure given.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.