# NTSB LAX92LA195: Boeing PT-17, N1731B, Chino, CA, May 3, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 3, 1992, 12:25 local (19:25 UTC)
- Place: Chino, CA
- Coordinates: 34.000537, -117.680305 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.0005&lon=-117.6803&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 13, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 27612
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX92LA195
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/27612/pdf
- Page: https://openairdocs.org/ntsb/LAX92LA195

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL DURING THE LANDING ROLL OUT.

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command (cause)
  - ground loop/swerve - inadvertent, pilot in command (cause)
- Main gear collapsed, landing - roll

## Analysis

THE PILOT SAID HE MADE A THREE POINT LANDING ON THE CENTER LINE OF THE ACTIVE RUNWAY. AS THE AIRPLANE SLOWED THE LEFT WING WENT DOWN. THE PILOT SAID HE CORRECTED WITH RIGHT AILERON THEN THE AIRPLANE TURNED TO THE RIGHT AND BOUNCED ON THE LEFT WHEEL. HE SAID HE APPLIED LEFT RUDDER BUT BY THEN THE AIRCRAFT WAS OFF THE RUNWAY AND INTO THE DIRT. THE LEFT LANDING GEAR COLLAPSED DURING THE GROUND LOOP DAMAGING THE LEFT WING AND PROPELLER.

## Aircraft

- Registration: [N1731B](https://openairdocs.org/aircraft/N1731B), registered now, S/N 75-5716 (OpenAirDocs)
- Reported make and model: BOEING PT-17
- Registry model: [Boeing E75](https://openairdocs.org/model/boeing-e75) (registry code 1380120) (OpenAirDocs)
- Registry engine: [Continental W670 series](https://openairdocs.org/engine/continental-w670-series) (registry code 17018, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 75-5716
- Engines: CONTINENTAL W670-6A 220 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: John P. Hodges
- Registered owner: Willis G. Hix
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 30, 1991
- Airport: CNO, Chino, runway 26, 3,858 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 54; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: rear; flight hours: 723 total, 20 in this make and model, 628 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 260° at 10 knots
- Visibility: 4 statute miles
- Lowest ceiling: 12,000 ft broken
- Altimeter: 30.00 inHg
- Observed at: CNO, 1 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 19920503012959A](https://openairdocs.org/incident/19920503012959A), May 3, 1992: Boeing E75, Chino, CA, Substantial damage. Ground looped on landing.

## Other investigations on N1731B (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 SEA74DYA37](https://openairdocs.org/ntsb/SEA74DYA37), Jun 17, 1974: Boeing E75 (N1731B), Shoshone, ID, substantial damage

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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