# NTSB CHI87DER05: Piper PA-25, N6384Z, Henning, MN, April 10, 1987

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: April 10, 1987, 18:15 local (23:15 UTC)
- Place: Henning, MN
- Coordinates: 46.319213, -95.440055 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.3192&lon=-95.4401&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report January 11, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 13586
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI87DER05
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13586/pdf
- Page: https://openairdocs.org/ntsb/CHI87DER05

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, cruise
  - weather condition - carburetor icing conditions (contributing factor)
  - carburetor heat - not used, pilot in command (cause)
  - lack of total experience in type of aircraft, pilot in command (contributing factor)
- Forced landing, descent - emergency
- In flight collision with terrain/water, landing - flare/touchdown
  - airspeed - not maintained, pilot in command (cause)
  - stall - inadvertent, pilot in command (cause)

## Analysis

AFTER EXPERIENCING A ROUGH RUNNING ENGINE THE PILOT INITIATED AN EMERGENCY LANDING. DURING THE OFF AIRPORT LANDING, THE AIRCRAFT RECEIVED SUBSTANTIAL DAMAGE AND THE PILOT REPORTED MINOR INJURIES. THIS WAS THIS PILOT'S FIRST EXPERIENCE IN THIS TYPE OF AIRCRAFT. EXAMINATION OF THE AIRFRAME AND ENGINE DID NOT REVEAL ANY MALFUNCTIONS. THE PILOT STATED THAT THE POWER LOSS WAS SIMILAR TO THAT OF CARBURETOR ICE WHICH HE HAD EXPERIENCED BEFORE IN OTHER TYPES OF AIRCRAFT. THE AIRCRAFT WAS EQUIPPED WITH A CARBURETOR HEAT SWITCH, HOWEVER, THE PILOT COULD NOT LOCATE IT. HE STATED THAT THE AIRCRAFT STALLED WHILE HE WAS IN A TURN PREPARING TO LAND AT LOW ALTITUDE.

## Aircraft

- Registration: [N6384Z](https://openairdocs.org/aircraft/N6384Z), registered now, S/N 25-506, built 1961 (OpenAirDocs)
- Reported make and model: PIPER PA-25
- Registry model: [Piper PA-25](https://openairdocs.org/model/piper-pa-25) (registry code 7102502) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 25-506
- Airframe hours: 2597
- Engines: LYCOMING O-320-A2B 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Arlin V. Amundson
- Registered owner: Glenn Hjelle
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, June 3, 1983, 56 hours before
- Departed: 7Y5, BATTLE LAKE, MN

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 57; private; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: front; flight hours: 1,474 total, 1 in this make and model, 1,325 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 130° at 4 knots
- Visibility: 7 statute miles
- Lowest ceiling: 2,000 ft broken
- Temperature: 43 °F, dew point 39 °F
- Altimeter: 29.00 inHg
- Observed at: AXN, 28 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 19870410009149A](https://openairdocs.org/incident/19870410009149A), Apr 10, 1987: Piper PA25, Henning, MN, Substantial damage. Lost power after a spray run and stalled trying to turn back to field. Pilot could not locate carb heater switch.

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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