# NTSB ANC92LA018: Cessna 150, N704YP, Anchorage, AK, December 1, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 1, 1991, 17:42 local (21:42 UTC)
- Place: Anchorage, AK
- Coordinates: 61.219596, -149.850662 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=61.2196&lon=-149.8507&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 31, 1993
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5675
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC92LA018
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5675/pdf
- Page: https://openairdocs.org/ntsb/ANC92LA018

## Probable cause

THE CERTIFIED FLIGHT INSTRUCTOR'S (CFI) DELAY IN INITIATING THE GO AROUND.  CONTRIBUTING TO THE ACCIDENT WAS THE SNOW BERM AND DARK NIGHT LIGHT CONDITION.

## 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
  - go-around - delayed, pilot in command(cfi) (cause)
- In flight collision with terrain/water, go-around (vfr)
  - light condition - dark night (contributing factor)
  - terrain condition - snowbank (contributing factor)

## Analysis

AFTER CROSSING THE RUNWAY THRESHOLD, WHILE PERFORMING A SIMULATED EMERGENCY LANDING, THE DUAL STUDENT STALLED THE AIRPLANE. THE AIRPLANE EXISTED THE LEFT SIDE OF THE RUNWAY AND CRASHED INTO A SNOWBANK. THE FLIGHT INSTRUCTOR STATED HE ATTEMPTED A GO-AROUND JUST BEFORE THE PLANE STRUCK THE SNOWBANK.

## Aircraft

- Registration: [N704YP](https://openairdocs.org/aircraft/N704YP), registered now, S/N 15078981, built 1976 (OpenAirDocs)
- Reported make and model: CESSNA 150
- Registry model: [Cessna 150M](https://openairdocs.org/model/cessna-150m) (registry code 2071830) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 15078981
- Airframe hours: 10085
- Engines: LYCOMING O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Aerotech Flight Service, Inc.
- Registered owner: Aerotech Flight Service, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, October 6, 1991, 83 hours before
- Airport: MRI, Merrill, runway 24, 4,001 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 25; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: right; flight hours: 710 total, 334 in this make and model, 662 as pilot in command, 216 in the last 90 days, 39 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 240° at 4 knots
- Visibility: 15 statute miles
- Lowest ceiling: 2,500 ft broken
- Temperature: 19 °F, dew point 18 °F
- Altimeter: 29.00 inHg
- Observed at: MRI, 5 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 19911201053779A](https://openairdocs.org/incident/19911201053779A), Dec 1, 1991: Cessna 150M, Anchorage, AK, Substantial damage. Student leveled off in slow nose high configuration. CFI advised go around. Left main hit snow berm. Crashed.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.