# NTSB ANC99LA086: Cessna 150F, N7911F, Fairbanks, AK, July 4, 1999

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 3, 1999, 20:47 local (Jul 4, 1999, 04:47 UTC)
- Place: Fairbanks, AK
- Coordinates: 64.900398, -148.159194 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=64.9004&lon=-148.1592&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 3, 2000
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 46715
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC99LA086
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/46715/pdf
- Page: https://openairdocs.org/ntsb/ANC99LA086

## Probable cause

The pilot's inadequate compensation for a crosswind.  Factors in the accident were a crosswind, and an inadvertent ground loop.

## 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 (cause)
  - ground loop/swerve - inadvertent, pilot in command (contributing factor)
- Gear collapsed, landing - roll
  - landing gear,main gear - overload

## Analysis

The certificated commercial pilot was landing a tailwheel equipped airplane on runway 01L.  The wind was reported to be from 283 degrees at 11 knots.  The touchdown and beginning of the landing roll were uneventful until the nose of the airplane began to veer to the left.  The pilot applied right rudder, left aileron, and right brake, but the airplane continued to turn left.  The right main gear collapsed, and the right wing struck the runway surface.  The pilot said there was no mechanical malfunction of the airplane.

## Factual narrative

On July 3, 1999, about 2047 Alaska daylight time, a tailwheel equipped Cessna 150F airplane, N7911F, sustained substantial damage while landing at the Fairbanks International Airport, Fairbanks, Alaska.  The airplane was being operated as a visual flight rules (VFR) cross-country personal flight when the accident occurred.  The airplane was operated by the pilot/owner.  The certificated commercial pilot, and the sole passenger, were not injured.  Visual meteorological conditions prevailed.  The flight originated at the Northway Airport, Northway, Alaska, about 1815.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on July 6, 1999, the pilot reported he was landing on runway 01L.  The touchdown and beginning of the landing roll were uneventful until the nose of the airplane began to veer to the left.  He applied right rudder, left aileron, and right brake, but the airplane continued to turn left.  The right main gear collapsed, and the right wing struck the runway surface.

The pilot said there was no mechanical malfunction of the airplane.

At 2053, a Fairbanks Aviation Routine Weather Report (METAR) was reporting in part:  Wind, 310 degrees (true) at 11 knots; visibility, 10 statute miles; clouds and sky condition, few at 6,000 feet, 11,000 feet scattered; temperature, 82 degrees F; dew point, 41 degrees F; altimeter, 30.03 inHg.

## Aircraft

- Registration: [N7911F](https://openairdocs.org/deregistered/N7911F-2018-03-06), registration cancelled 2018-03-06, S/N 15064011, built 1966 (OpenAirDocs)
- Reported make and model: Cessna 150F
- Registry model: [Cessna 150F](https://openairdocs.org/model/cessna-150f) (registry code 2071814) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 15064011
- Airframe hours: 4552
- Engines: Continental O-200 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Michael J. Kimball
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 25, 1999, 30 hours before
- Departed: PAOR, NORTHWAY, AK
- Destination: PAFA
- Airport: PAFA, Fairbanks International, runway 1L, 11,800 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: right; flight hours: 1,305 total, 122 in this make and model, 1,201 as pilot in command, 23 in the last 90 days, 23 in the last 30 days, 9 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 283° at 11 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 82 °F, dew point 41 °F
- Altimeter: 30.00 inHg
- Observed at: PAF

## 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 19990703008239A](https://openairdocs.org/incident/19990703008239A), Jul 3, 1999: Cessna 150F, Fairbanks, AK, Substantial damage. Acft crashed on landing. (.19) on July 3, 1999, about 2047 Alaska daylight time, a tailwheel equipped Cessna 150F airplane, N7911F, sustained substantial…

## Other investigations on N7911F (3)

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.

- [NTSB ANC12LA031](https://openairdocs.org/ntsb/ANC12LA031), Apr 22, 2012: Cessna 150F (N7911F), Fairbanks, AK, substantial damage. Probable cause: The student pilot did not control the airplane’s pitch attitude, which resulted in an aerodynamic stall during the takeoff initial climb. Contributing to the accident was the pilot’s failure to use…
- [NTSB LAX98LA080](https://openairdocs.org/ntsb/LAX98LA080), Jan 17, 1998: Cessna 150F (N7911F), San Carlos, CA, substantial damage. Probable cause: The pilot's excessive airspeed, which resulted in a bounced landing, and, his failure to ensure that his seat locking pin was engaged, which caused his seat to move backwards during the touchdown and…
- [NTSB LAX67F0331](https://openairdocs.org/ntsb/LAX67F0331), Mar 14, 1967: Cessna 150F (N7911F), Simi, CA, substantial damage

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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