# NTSB ANC87FA036: Champion 7ECA, N1883G, Hay Stack Mt., AK, February 15, 1987

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Field investigation · Final report
- Date: February 15, 1987, 12:00 local (16:00 UTC)
- Place: Hay Stack Mt., AK
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report March 30, 1988
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4770
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC87FA036
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4770/pdf
- Page: https://openairdocs.org/ntsb/ANC87FA036

## Sequence of events

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

- Loss of control - in flight, maneuvering - turn to reverse direction
  - maneuver - excessive, pilot in command (cause)
  - proper altitude - not maintained, pilot in command (cause)
  - airspeed(vs) - below, pilot in command (cause)
  - stall - uncontrolled, pilot in command (cause)
- In flight collision with terrain/water, maneuvering

## Analysis

THE PILOT-IN-COMMAND WAS MANEUVERING AT THE 2200 FOOT LEVEL OF HAYSTACK MOUNTAIN. HE STATED HE WAS TURNING INTO THE MOUNTAIN AT A STEEP ANGEL OF BANK. WHILE HE WAS TURNING THE AIRPLANE STRUCK THE TREES. NO MECHANICAL IRREGULARITIES WERE FOUND DURING THE ON SCENE INVESTIGATION. THE PLTS FLT TIME WAS NOT REPORTED OR AVAILABLE.

## Aircraft

- Registration: N1883G (not matched to a registry record)
- Reported make and model: CHAMPION 7ECA
- Category: Airplane
- Serial number: 310
- Airframe hours: 3006
- Engines: LYCOMING O-235-020 110 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: David W. Henry
- Airworthiness certificate: Standard, Aerobatic
- Departed: LAKLOEY HILL ST, AK
- Destination: HAYSTACK MTN, AK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 37; private; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: left

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: -9 °F
- Altimeter: 29.00 inHg

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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