# NTSB BFO91LA002: Cessna 150, N6439G, Indian Head, MD, October 8, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 8, 1990, 15:50 local (19:50 UTC)
- Place: Indian Head, MD
- Coordinates: 38.590202, -77.150657 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.5902&lon=-77.1507&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 15, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 11634
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=BFO91LA002
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/11634/pdf
- Page: https://openairdocs.org/ntsb/BFO91LA002

## Probable cause

THE STUDENT PILOT'S FAILURE TO MAINTAIN ADEQUATE AIRCRAFT CONTROL DURING THE LANDING FLARE/TOUCHDOWN. CONTRIBUTING FACTORS ARE HIS LACK OF TOTAL FLIGHT EXPERIENCE AND HIS IMPROPER TECHNIQUE WHEN RAISING FLAPS DURING AN ATTEMPTED GO-AROUND.

## Sequence of events

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

- Loss of control - in flight, landing - flare/touchdown
  - planned approach - not performed, pilot in command
  - lack of total experience, pilot in command (contributing factor)
  - go-around - initiated, pilot in command (contributing factor)
  - raising of flaps - improper, pilot in command (contributing factor)
  - aircraft control - not maintained, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - ground

## Analysis

THE STUDENT PILOT STATED THAT DURING HIS LANDING FLARE THE RIGHT WING TIP 'SUDDENLY' LIFTED, AND THE AIRCRAFT DRIFTED OFF THE LEFT SIDE OF THE RUNWAY. HE REPORTED THAT HE ADDED RIGHT RUDDER AND AILERON, AND FULL POWER TO ATTEMPT A GO-AROUND. HE STATED THAT WHEN HE RAISED THE FLAPS, HE INADVERTENTLY RAISED THEM ALL AT ONCE. THE AIRCRAFT STALLED AND FELL TO THE GROUND RIGHT WING AND NOSE WHEEL FIRST, AND THEN FLIPPED OVER, INVERTED. THE STUDENT PILOT REPORTED 60 HOURS OF TOTAL FLIGHT EXPERIENCE, INCLUDING 51 HOURS IN THE ACCIDENT MAKE AND MODEL AIRCRAFT.

## Aircraft

- Registration: [N6439G](https://openairdocs.org/deregistered/N6439G-1993-09-16), registration cancelled 1993-09-16, S/N 15071939 (OpenAirDocs)
- Reported make and model: CESSNA 150
- Registry model: [Cessna 150K](https://openairdocs.org/model/cessna-150k) (registry code 2071822) (OpenAirDocs)
- Category: Airplane
- Serial number: 15071939
- Airframe hours: 860
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Professional Flight Service
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, August 6, 1990, 80 hours before
- Airport: 2W5, Maryland, runway 17, 3,000 ×  ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 31; student; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 60 total, 51 in this make and model, 19 as pilot in command, 40 in the last 90 days, 15 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 11 knots
- Visibility: 12 statute miles
- Lowest ceiling: 25,000 ft broken
- Temperature: 82 °F, dew point 70 °F
- Altimeter: 30.00 inHg
- Observed at: IAD, 280 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 19901008044349A](https://openairdocs.org/incident/19901008044349A), Oct 8, 1990: Cessna 150K, Indian Head, MD, Substantial damage. Crosswind lifted a wing on level off for landing. Student overcontrolled,began go around and stalled.

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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