# NTSB MIA93LA135: Piper PA-18-150, N4156V, Pensacola, FL, May 29, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 29, 1993, 10:00 local (15:00 UTC)
- Place: Pensacola, FL
- Location: 30.4879° N, 87.1872° W: Placed by OpenAirDocs from NTSB’s distance and direction from PENSACOLA INTL (PNS), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=30.4879&lon=-87.1872&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 17, 1994
- Report: Approved by Office Director
- NTSB case key (mKey): 33276
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA93LA135
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33276/pdf
- Page: https://openairdocs.org/ntsb/MIA93LA135

## Probable cause

THE PILOT-IN-COMMAND'S INADEQUATE COMPENSATION FOR WIND CONDITIONS AND DELAYED REMEDICAL ACTION.

## 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
  - weather condition - tailwind (contributing factor)
  - remedial action - delayed, pilot in command(cfi) (cause)
- On ground/water encounter with terrain/water, landing - roll
  - compensation for wind conditions - inadequate, pilot in command(cfi) (cause)
  - ground loop/swerve - inadvertent, pilot in command(cfi)

## Analysis

THE CFI WAS INSTRUCTING A RATED PILOT IN THE OPERATION OF THE CONVENTIONAL LANDING GEAR AIRPLANE. DURING THE LANDING ON RUNWAY 17 THE WINDS SHIFTED AND WERE FROM THE NORTH. THE RATED PILOT STARTED TO LOSE CONTROL OF THE AIRPLANE ON LANDING ROLL AND THE CFI TOOK CONTROL OF THE AIRPLANE. HE ADDED POWER BUT THE AIRPLANE GROUND-LOOPED TO THE LEFT AND THE RIGHT WING AND ELEVATOR WERE DAMAGED.

## Aircraft

- Registration: [N4156V](https://openairdocs.org/aircraft/N4156V), registered now, S/N 1809062, built 1993 (OpenAirDocs)
- Reported make and model: PIPER PA-18-150
- Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 1809062
- Airframe hours: 8
- Engines: LYCOMING O-320-A2B 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Pensacola Aviation Center Inc.
- Registered owner: Pensacola Aviation Center Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, January 2, 2000, 8 hours before
- Airport: PNS, Pensacola Regional, runway 17, 7,000 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 21; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: rear; flight hours: 1,500 total, 20 in this make and model, 1,380 as pilot in command, 150 in the last 90 days, 50 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 360° at 4 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 82 °F, dew point 68 °F
- Altimeter: 30.00 inHg
- Observed at: PNS, 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 19930529015739A](https://openairdocs.org/incident/19930529015739A), May 29, 1993: Piper PA18150, Pensacola, FL, Substantial damage. Lost directional control on landing roll. CFI took over but ground looped. Blamed windshift. Wind light variable.

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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