# NTSB BFO93LA084: Cessna A150M, N9891J, Tarentum, PA, May 12, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 12, 1993, 11:30 local (15:30 UTC)
- Place: Tarentum, PA
- Coordinates: 40.599018, -79.760612 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.5990&lon=-79.7606&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report November 19, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 11943
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=BFO93LA084
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/11943/pdf
- Page: https://openairdocs.org/ntsb/BFO93LA084

## Probable cause

FAILURE OF THE PILOT TO MAINTAIN DIRECTIONAL CONTROL AND PROPER RUNWAY ALIGNMENT.  THE ADVERSE WEATHER CONDITION AND PROXIMITY OF THE PARKED AIRCRAFT WERE RELATED FACTORS.

## Sequence of events

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

- In flight encounter with weather, landing - flare/touchdown
  - weather condition - unfavorable wind (contributing factor)
  - weather condition - downdraft (contributing factor)
  - weather condition - updraft (contributing factor)
- On ground/water collision with object, landing - roll
  - object - aircraft parked/standing
  - directional control - not maintained, pilot in command (cause)
  - proper alignment - not maintained, pilot in command (cause)
  - procedures/directives - improper, airport personnel (contributing factor)

## Analysis

THE PILOT REPORTED THAT ON HIS RETURN FROM A DEMONSTRATION FLIGHT HE ENCOUNTERED AN UPDRAFT AND DOWNDRAFT WHILE LANDING.  HE STATED THAT AS HE NEARED HIS POSITION FOR LANDING, THE WIND CHANGED DIRECTION, AND AS HE WAS ABOUT TO APPLY POWER, THERE WAS AN UPDRAFT AND THE AIRPLANE ALMOST STALLED. HE REPORTED THAT HE PUSHED THE NOSE DOWN AND CONTINUED INTO THE FLARE/TOUCHDOWN BUT THE AIRPLANE WAS LEFT OF THE CENTERLINE AND VEERING TOWARDS AN UNOCCUPIED AIRCRAFT THAT WAS PARKED 22 FEET OFF THE SIDE OF THE RUNWAY ON A GRASSY AREA. DURING THE LANDING, THE LEFT WING STRUCK THE PARKED AIRPLANE. THE PILOT STATED THAT THERE WAS NO MECHANICAL MALFUNCTION AND THE ACCIDENT COULD HAVE BEEN PREVENTED, IF THE AIRPLANE HAD NOT BEEN PARKED CLOSE TO THE RUNWAY.

## Aircraft

- Registration: [N9891J](https://openairdocs.org/deregistered/N9891J-2017-10-24), registration cancelled 2017-10-24, S/N A1500700, built 1976 (OpenAirDocs)
- Reported make and model: CESSNA A150M
- Registry model: [Cessna A150M](https://openairdocs.org/model/cessna-a150m) (registry code 2071831) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: A1500700
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Aerobat V
- Registered owner: Aerobat V
- Airworthiness certificate: Standard, Aerobatic
- Last inspection: Annual, November 16, 1992
- Departed: 9G1
- Destination: 9G1
- Airport: 9G1, West Penn, runway 20, 2,645 × 37 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 71; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 600 total, 500 in this make and model, 26 in the last 90 days, 13 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 230° at 8 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 73 °F, dew point 57 °F
- Altimeter: 29.00 inHg
- Observed at: AGC, 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 19930512013449A](https://openairdocs.org/incident/19930512013449A), May 12, 1993: Cessna A150M, Tarentum, PA, Substantial damage. Struck parked aircraft on landing roll. Was off centerline. Parked aircraft 22 feet from runway edge.

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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