# NTSB DEN83LA153: Aero Commander Callair A-9B, N7642V, Rolla, ND, June 25, 1983

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: June 25, 1983, 11:00 local (16:00 UTC)
- Place: Rolla, ND
- Coordinates: 48.84954, -99.609489 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=48.8495&lon=-99.6095&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16104
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN83LA153
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16104/pdf
- Page: https://openairdocs.org/ntsb/DEN83LA153

## Sequence of events

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

- Loss of control - in flight, maneuvering - aerial application
  - airspeed - not maintained, pilot in command (cause)
  - stall - inadvertent, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

DURING A PROCEDURE TURN-AROUND AFTER THE SECOND PASS, THE ACFT ENTERED A STALL, THE LEFT WING DROPPED & THE PLANE IMPACTED, LEFT WING FIRST, WHILE IN A NOSE DOWN ATTITUDE. NO PREIMPACT, MECHANICAL MALFUNCTION OR FAILURE WAS REPORTED.

## Aircraft

- Registration: [N7642V](https://openairdocs.org/deregistered/N7642V-1992-11-19), registration cancelled 1992-11-19, S/N 1370 (OpenAirDocs)
- Reported make and model: AERO COMMANDER CALLAIR A-9B (CALLAIR A-)
- Registry model: [Aero Commander CALLAIR A-9B](https://openairdocs.org/model/aero-commander-callair-a-9b) (registry code 0144206) (OpenAirDocs)
- Category: Airplane
- Serial number: 1370
- Airframe hours: 2900
- Engines: LYCOMING IO-540 320 horsepower reciprocating
- Damage: Destroyed
- Flight: Aerial application, Part 137
- Registered owner: Leonard Krech
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, June 4, 1983, 100 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 2,000 total, 300 in this make and model, 2,000 as pilot in command, 100 in the last 90 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 12 knots, gusting 14
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 70 °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 19830625027319A](https://openairdocs.org/incident/19830625027319A), Jun 25, 1983: Airpts A9B, Rolla, ND, Destroyed. Stalled on a turnaround during a spraying operation. Struck ground in a vertical bank.

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.