# NTSB ATL84LA121: Piper PA-23-250, N63857, Warrenton, VA, March 15, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 15, 1984, 14:35 local (19:35 UTC)
- Place: Warrenton, VA
- Location: 38.7154° N, 77.7976° W: Placed by OpenAirDocs: center of Warrenton, VA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.7154&lon=-77.7976&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 6423
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL84LA121
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/6423/pdf
- Page: https://openairdocs.org/ntsb/ATL84LA121

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, takeoff - roll/run
  - emergency procedure - intentional, pilot in command(cfi) (contributing factor)
  - mixture - reduced, pilot in command(cfi)
- Loss of control - on ground/water, takeoff
  - emergency procedure - improper, dual student (cause)
  - rudder - improper use of, dual student (cause)
  - supervision - improper, pilot in command(cfi) (cause)
  - remedial action - inadequate, pilot in command(cfi)
  - aborted takeoff - delayed
  - directional control - not possible
  - ground loop/swerve - uncontrolled

## Analysis

THE CFI SHUT DOWN ONE ENGINE DURING TAKEOFF FOR A SIMULATED EMERGENCY AND THE PLT TAKING INSTRUCTION APPLIED THE INCORRECT RUDDER ACTION DURING THE ABORTED TAKEOFF AND LEFT FULL POWER ON THE OPERATING RIGHT ENGINE. THE CFI WAS UNABLETO CORRECT THE RESULTING ACFT SWERVE TO THE LEFT INTO A DIRT EMBANKMENT.

## Aircraft

- Registration: [N63857](https://openairdocs.org/deregistered/N63857-2008-02-19), registration cancelled 2008-02-19, S/N 27-7854007, built 1977 (OpenAirDocs)
- Reported make and model: PIPER PA-23-250
- Registry model: [Piper PA-23-250](https://openairdocs.org/model/piper-pa-23-250) (registry code 7102308) (OpenAirDocs)
- Registry engine: [Lycoming IO-540 series](https://openairdocs.org/engine/lycoming-io-540-series) (registry code 41530, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 27-7854007
- Airframe hours: 570
- Engines: LYCOMING IO-540-C4B5 250 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Theodore C. Wilbar
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 10, 1983, 8 hours before
- Airport: W66, Warrenton, runway 32, 4,160 × 60 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 51; airline transport, flight instructor; airplane ratings: multi-engine land, multi-engine sea, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: right; flight hours: 7,380 total, 427 in this make and model, 7,210 as pilot in command, 114 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 350° at 3 knots
- Visibility: 10 statute miles
- Lowest ceiling: 2,500 ft broken
- Temperature: 55 °F, dew point -0 °F
- Altimeter: 30.00 inHg
- Observed at: 24 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 19840315006369A](https://openairdocs.org/incident/19840315006369A), Mar 15, 1984: Piper PA23250, Warrenton, VA, Substantial damage. CFI gave engine out on takeoff. Student used wrong rudder. Failed cut power CFI failed to act. Struck dirt bank.

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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