# NTSB CHI06CA199: Porter Mustang II, N96AP, Ainsworth, NE, July 23, 2006

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Data collection · Final report
- Date: July 23, 2006, 14:30 local (19:30 UTC)
- Place: Ainsworth, NE
- Coordinates: 42.579166, -99.993057
- Nearby events: https://openairdocs.org/map.md?lat=42.5792&lon=-99.9931&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report November 29, 2006
- Report: Approved by Office Director
- Parties: Lincoln, NE FSDO
- NTSB case key (mKey): 64456
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI06CA199
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/64456/pdf
- Page: https://openairdocs.org/ntsb/CHI06CA199

## Probable cause

The delay in initiating the aborted landing which resulted in inadequate altitude to clear high vegetation off the end of the runway.  Factors associated with the accident were the gusty crosswind, inadequate compensation for the wind conditions, and the high vegetation.

## 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 - crosswind (contributing factor)
  - compensation for wind conditions - inadequate, pilot in command (contributing factor)
  - weather condition - gusts (contributing factor)
- In flight collision with terrain/water, landing - aborted
  - aborted landing - delayed, pilot in command (cause)
  - terrain condition - high vegetation (contributing factor)
  - altitude - inadequate, pilot in command (cause)

## Analysis

The airplane contacted the terrain during an aborted landing.  The pilot reported there was an 11 knot crosswind with gusts to 15 knots while he was landing on runway 17.  He reported he used one notch of flaps and was lined with the runway on final approach.  The pilot reported the airplane was a little fast and he let it float until it touched down for a smooth landing.  He reported that a second later the right wing lifted and the airplane turned to the left.  The wing came back down and he attempted to straighten out the heading, but was unable to so he decided to add power to go around.  The pilot reported the landing gear contacted two to three foot tall weeds off the end of the runway which resulted in landing gear damage with the right landing gear being pushed up through the top of the right wing.  Winds reported at the accident airport about 40 minutes prior to the accident were from 210 degrees at 7 knots, gusting to 16 knots.

## Factual narrative

The airplane contacted the terrain during an aborted landing.  The pilot reported there was an 11 knots crosswind with gusts to 15 knots while he was landing on runway 17.  He reported he used one notch of flaps and was lined with the runway on final approach.  The pilot reported the airplane was a little fast and he let it float until it touched down for a smooth landing.  He reported that a second later the right wing lifted and the airplane turned to the left.  The wing came back down and he attempted to straighten out the heading, but was unable to so he decided to add power to go around.  The pilot reported the landing gear contacted two to three foot tall weeds off the end of the runway which resulted in landing gear damage with the right landing gear being pushed up through the top of the right wing.  Winds reported at the accident airport about 40 minutes prior to the accident were from 210 degrees at 7 knots, gusting to 16 knots.

## Aircraft

- Registration: N96AP (not matched to a registry record)
- Reported make and model: Porter Mustang II
- Category: Airplane, amateur-built
- Serial number: M-II-1244
- Engines: Lycoming IO-320 reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Ivan A. Porter
- Airworthiness certificate: Special, Experimental (Special)
- Departed: ENV, Wendover, UT
- Destination: ANW, Ainsworth, NE
- Flight plan: Unknown

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 61; injuries: none; private; airplane ratings: single-engine land; medical: class 3; flight hours: 711 total, 450 in this make and model, 10 in the last 90 days, 6 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 7 knots, gusting 16
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 91 °F, dew point 52 °F
- Altimeter: 29.98 inHg
- Observed at: ANW

## 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 20060723014329A](https://openairdocs.org/incident/20060723014329A), Jul 23, 2006: Amtr MSTGMII, Ainsworth, NE, Substantial damage. (-23) The pilot lost control of the aircraft on landing.

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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