# NTSB NYC91LA155: Piper PA-28R-200, N4821T, Doylestown, PA, June 22, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 22, 1991, 11:20 local (15:20 UTC)
- Place: Doylestown, PA
- Location: 40.3142° N, 75.1277° W: Placed by OpenAirDocs: center of Doylestown, PA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.3142&lon=-75.1277&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report May 27, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 36942
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC91LA155
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/36942/pdf
- Page: https://openairdocs.org/ntsb/NYC91LA155

## Probable cause

THE FLIGHT INSTRUCTOR ALLOWED THE STUDENT TO CONTINUE A SIMULATED ENGINE FAILURE TO A HARD LANDING, RESULTING IN A BOUNCED LANDING AND LOSS OF DIRECTIONAL CONTROL AND A COLLISION WITH THE VASI.

## Sequence of events

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

- Hard landing, landing - flare/touchdown
  - recovery from bounced landing - not performed, pilot in command(cfi) (contributing factor)
  - aircraft control - not maintained, pilot in command(cfi) (contributing factor)
- Miscellaneous/other, landing
  - object - airport facility (cause)

## Analysis

DURING A TRAINING FLIGHT THE CFI GAVE THE STUDENT A SIMULATED ENGINE OUT LANDING.  THE CFI THOUGHT THE FLIGHT WOULD END SHORT OF THE INTENDED RUNWAY, BUT ELECTED TO LET THE STUDENT CONTINUE THE APPROACH.  THE AIRPLANE LANDED HARD AND BOUNCED.  THE AIRPLANE DRIFTED LEFT, STARTED TO SETTLE AND THE CFI POWERED UP THE ENGINE FOR A GO-AROUND; HOWEVER, THE LEFT GEAR AND STABILATOR STRUCK THE VASI TO THE LEFT OF THE RUNWAY.

## Aircraft

- Registration: N4821T (not matched to a registry record)
- Reported make and model: PIPER PA-28R-200
- Category: Airplane
- Serial number: 28R-7235117
- Engines: LYCOMING IO-360-CIC 200 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Kenneth Millar, doing business as Ken Miller Enterprises
- Registered owner: Kenneth Millar
- Airworthiness certificate: Standard, Normal
- Last inspection: Unknown, January 2, 2000
- Airport: N88, Doylestown, runway 5, 3,000 × 60 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 56; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 9 knots
- Visibility: 14 statute miles
- Temperature: 81 °F

## 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 19910622026069A](https://openairdocs.org/incident/19910622026069A), Jun 22, 1991: Piper PA28R200, Doylestown, PA, Substantial damage. Bounced on sfl. Added power. Veered, cut power. CFI added power for go around hit VASI. CFI allowed stretched glide.

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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