# NTSB ANC90LA029: Piper PA-18, N8569D, Pilot Point, AK, December 22, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 22, 1989, 12:30 local (16:30 UTC)
- Place: Pilot Point, AK
- Coordinates: 57.499767, -157.279647 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=57.4998&lon=-157.2796&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 5, 1990
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5335
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC90LA029
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5335/pdf
- Page: https://openairdocs.org/ntsb/ANC90LA029

## Probable cause

FAILURE OF THE NON-CERTIFICATED PILOT TO REMOVE ICE/FROST FROM THE WING(S) PRIOR TO FLIGHT.  HIS LACK OF TRAINING AND QUALIFICATION WERE PROBABLE CONTRIBUTING FACTORS.

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - ice/frost removal from aircraft - not performed, pilot in command (cause)
  - inadequate training, pilot in command (contributing factor)
  - qualification, pilot in command (contributing factor)
- In flight collision with terrain/water, takeoff

## Analysis

THE NON-CERTIFICATED PILOT REPORTED HE ATTEMPTED TO TAKE OFF WITH LIGHT RIME ICE ON THE AIRPLANE'S RIGHT WING. HE INDICATED THAT WHILE TAKING OFF WITH A LIGHT CROSSWIND COMPONENT, THE AIRCRAFT HAD INSUFFICIENT AIRSPEED TO COMPENSATE FOR LOSS OF LIFT ON THE RIGHT WING. SHORTLY AFTER LIFT-OFF, THE RIGHT WING STALLED & HIT THE RUNWAY. FAA RECORDS SHOWED THAT THE PILOT'S STUDENT PILOT CERTIFICATE HAD EXPIRED IN 1981.

## Aircraft

- Registration: [N8569D](https://openairdocs.org/aircraft/N8569D), registered now, S/N 18-6223, built 1958 (OpenAirDocs)
- Reported make and model: PIPER PA-18
- Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18-6223
- Engines: LYCOMING O-320-A 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Carlson, Jens P.
- Registered owner: Unknown
- Airport: PIP, Pilot Point, runway 7, 3,500 × 90 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; medical: unknown

## Weather

- Conditions: Visual (VMC), Day
- Wind: 45° at 10 knots
- Visibility: 30 statute miles
- Temperature: 28 °F, dew point -0 °F

## 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 19891222057249A](https://openairdocs.org/incident/19891222057249A), Dec 22, 1989: Piper PA18150, Pilot Point, AK, Substantial damage. Left wing stalled shortly after liftoff due to failure to remove ice. Wing struck runway causing a cartwheel.

## Other investigations on N8569D (2)

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 ANC79DAG39](https://openairdocs.org/ntsb/ANC79DAG39), Mar 25, 1979: Piper PA-18 (N8569D), Kantishna Mine, AK, substantial damage
- [NTSB ANC77DAG13](https://openairdocs.org/ntsb/ANC77DAG13), Oct 29, 1976: Piper PA-18 (N8569D), Anchorage, AK, 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.

---
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.