# NTSB FTW93LA161: Lewis RV4, N61DL, Tyler, TX, May 21, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 21, 1993, 15:00 local (20:00 UTC)
- Place: Tyler, TX
- Coordinates: 32.239852, -95.319335 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.2399&lon=-95.3193&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 30, 1994
- Report: Approved by Office Director
- NTSB case key (mKey): 18753
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW93LA161
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18753/pdf
- Page: https://openairdocs.org/ntsb/FTW93LA161

## Probable cause

PILOT'S LOSS OF DIRECTIONAL CONTROL.

## 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)
- On ground/water collision with object, landing - roll
  - object - sign

## Analysis

DURING A PLEASURE FLIGHT THE PILOT HAD LANDED AT A PRIVATE AIR  STRIP; HE REPORTED THAT CONTROL WAS LOST WHEN THE LEFT BRAKE LOCKED UP DURING THE LANDING ROLL.  AN INSPECTION OF THE  LANDING GEAR AND BRAKE SYSTEM REVEALED NO ANOMOLIES.

## Factual narrative

On May 21, 1993, at approximately 1500 central daylight time (CDT), a Lewis RV4, N61DL, was substantially damaged during landing near Tyler, Texas. The commercial pilot was not injured. Weather for the local area flight was visual meteorological conditions. Barbara Schreiber of Tyler, Texas, was the registered owner.

During a telephonic interview with the pilot, conducted by the investigator in charge, the pilot reported that during the landing the brakes locked up and the airplane veered off the runway. He further reported that after departing the runway the airplane struck a runway sign.

A post accident examination of the landing gear revealed no anomalies that would have caused the brake or wheel to lock up.

Repeated attempts to get the pilot to provide additional information was unsuccessful.

## Aircraft

- Registration: [N61DL](https://openairdocs.org/deregistered/N61DL-2015-05-04), registration cancelled 2015-05-04, S/N RV4-61 (OpenAirDocs)
- Reported make and model: LEWIS RV4
- Registry model: [Lewis Aviation Const RV4](https://openairdocs.org/model/lewis-aviation-const-rv4) (registry code 05608T1) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: RV4-61
- Engines: UNKNOWN UNKNOWN reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Schreiber, Barbara
- Airworthiness certificate: Special, Experimental (Special)
- Airport: Aero Estates, runway 28, 3,200 × 50 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 1,200 total

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 14 statute miles
- Lowest ceiling: none
- Temperature: 84 °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 19930521015229A](https://openairdocs.org/incident/19930521015229A), May 21, 1993: Amtr RV4, Tyler, TX, Substantial damage. Landed at Private strip. Reported left brake locked landing. Lost control brake system found to be normal.

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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