# NTSB SEA08CA183: Grumman Acft Eng G-164A, N6702Q, Hazelton, ID, August 18, 2008

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Data collection · Final report
- Date: August 18, 2008, 09:05 local (15:05 UTC)
- Place: Hazelton, ID
- Coordinates: 42.604721, -114.135276
- Nearby events: https://openairdocs.org/map.md?lat=42.6047&lon=-114.1353&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Defining event: [Takeoff: Loss of control in flight](https://openairdocs.org/ntsb-events/240)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report September 26, 2008
- Report: Approved by Office Director
- Parties: Federal Aviation Administration
- NTSB case key (mKey): 68723
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA08CA183
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/68723/pdf
- Page: https://openairdocs.org/ntsb/SEA08CA183

## Probable cause

The pilot's inadequate compensation for the tailwind and failure to attain and maintain airspeed, which resulted in an inadvertent stall. The tailwind was a contributing factor.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Wind: tailwind](https://openairdocs.org/ntsb-findings/03034015): Environmental issues › Conditions/weather/phenomena · Contributed to outcome (probable cause); cases with it: [Grumman Acft ENG Cor-Schweizer G-164A, 5 cases](https://openairdocs.org/ntsb-findings/03034015/cases.md?model=3952801), [All aircraft, 594 cases](https://openairdocs.org/ntsb-findings/03034015/cases.md)
- [Performance/control parameters: crosswind correction](https://openairdocs.org/ntsb-findings/01062030): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Grumman Acft ENG Cor-Schweizer G-164A, 2 cases](https://openairdocs.org/ntsb-findings/01062030/cases.md?model=3952801), [All aircraft, 184 cases](https://openairdocs.org/ntsb-findings/01062030/cases.md)
- [Performance/control parameters: airspeed](https://openairdocs.org/ntsb-findings/01062010): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Grumman Acft ENG Cor-Schweizer G-164A, 3 cases](https://openairdocs.org/ntsb-findings/01062010/cases.md?model=3952801), [All aircraft, 1,681 cases](https://openairdocs.org/ntsb-findings/01062010/cases.md)
- [Object/animal/substance: pole](https://openairdocs.org/ntsb-findings/03022010): Environmental issues › Physical environment · Not specified; cases with it: [Grumman Acft ENG Cor-Schweizer G-164A, 1 case](https://openairdocs.org/ntsb-findings/03022010/cases.md?model=3952801), [All aircraft, 142 cases](https://openairdocs.org/ntsb-findings/03022010/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Takeoff: Loss of control in flight](https://openairdocs.org/ntsb-events/240) (defining event); cases with it: [Grumman Acft ENG Cor-Schweizer G-164A, 6 cases](https://openairdocs.org/ntsb-events/240/sequence.md?model=3952801), [All aircraft, 5,002 cases](https://openairdocs.org/ntsb-events/240/sequence.md)
- [Uncontrolled descent: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Grumman Acft ENG Cor-Schweizer G-164A, 20 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=3952801), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md)

## Analysis

The pilot said he was departing for the fourth aerial application of the day and the airplane stalled at the end of the runway. The right wings struck a post and the airplane turned 90 degrees to the right. The airplane came to rest about 200 yards from the end of the runway. The ground crew stated that a strong tailwind had developed about the time the pilot was departing.

## Factual narrative

The pilot submitted a written statement and indicated that he was departing for the fourth aerial application of the day and the airplane stalled at the end of the runway. The right wings struck a post and the airplane turned 90 degrees to the right. The airplane came to rest about 200 yards from the end of the runway. The ground crew stated that a strong tailwind had developed about the time the pilot was departing.

## Aircraft

- Registration: [N6702Q](https://openairdocs.org/deregistered/N6702Q-2008-12-08), registration cancelled 2008-12-08, S/N 1707, built 1977 (OpenAirDocs)
- Reported make and model: Grumman Acft Eng G-164A
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164A](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a) (registry code 3952801) (OpenAirDocs)
- Registry engine: [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series) (registry code 01517, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 1707
- Engines: Honeywell TPE331 turbo prop
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Red Baron Ag Service Inc
- Airworthiness certificate: Special, Restricted (Special)
- Departed: U94, Hazelton, ID
- Airport: U94, Hazelton Muni, runway 24, 2,800 × 90 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; commercial; airplane ratings: single-engine land; medical: class 2; last flight review April 1, 2008; flight hours: 954 total, 208 in this make and model, 419 in the last 90 days, 190 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 50° at 13 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point 36 °F
- Altimeter: 29.94 inHg
- Observed at: JER, 16 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 20080818842649A](https://openairdocs.org/incident/20080818842649A), Aug 18, 2008: Scwzer G164A, Hazelton, ID, Destroyed. (-23) Agricultural operation. On the fourth load of the morning (identical loads) the aircraft failed to gain sufficient airpseed to fly out of ground effect.…

## Other investigations on N6702Q (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 SEA05LA146](https://openairdocs.org/ntsb/SEA05LA146), Jul 19, 2005: Grumman G-164A (N6702Q), Jerome, ID, substantial damage. Probable cause: Failure to maintain clearance from terrain during takeoff and initial climb. A high density altitude was a factor.
- [NTSB SEA91LA191](https://openairdocs.org/ntsb/SEA91LA191), Jul 24, 1991: Grumman G-164A (N6702Q), Hamer, ID, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN RUNWAY ALIGMENT. FACTORS INCLUDE HIGH VEGETATION, AND AN INADVERENT GROUND LOOP/SWERVE.

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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