# NTSB DEN90LA102: Aero Commander Callair A-9B, N7620V, Montrose, CO, April 28, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 28, 1990, 14:30 local (20:30 UTC)
- Place: Montrose, CO
- Coordinates: 38.490108, -107.87017 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.4901&lon=-107.8702&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 March 5, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 17925
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN90LA102
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17925/pdf
- Page: https://openairdocs.org/ntsb/DEN90LA102

## Probable cause

INADEQUATE COMPENSATION FOR WIND CONDITIONS BY THE PILOT. THE ADVERSE WIND CONDITIONS WERE RELATED 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
  - weather condition - high wind (contributing factor)
  - weather condition - crosswind (contributing factor)
  - weather condition - gusts (contributing factor)
  - compensation for wind conditions - inadequate, pilot in command (cause)
- In flight collision with terrain/water, takeoff

## Analysis

THE PLT TOOK OFF ON RWY 30 WITH A WIND FROM 210 DEG AT 25 GUSTING 35 KTS. DURING LIFT-OFF, THE ACFT ENCOUNTERED GUSTS, ENTERED A RIGHT BANK & IMPACTED ON ITS RIGHT WING TIP & NOSE. IT THEN ROTATED & SLID BACKWARDS INTO A FENCE.

## Aircraft

- Registration: [N7620V](https://openairdocs.org/deregistered/N7620V-1990-06-27), registration cancelled 1990-06-27, S/N 1348 (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: 1348
- Airframe hours: 3200
- Engines: LYCOMING IO-540 290 horsepower reciprocating
- Damage: Substantial damage
- Flight: Positioning, Part 91
- Registered owner: Crawford Aviation, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 4, 1989, 25 hours before
- Destination: 99V, CRAWFORD, CO
- Airport: MTJ, Montrose, runway 30, 8,497 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 52; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 2,954 total, 100 in this make and model, 2,800 as pilot in command, 54 in the last 90 days, 23 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 25 knots, gusting 35
- Visibility: 40 statute miles
- Lowest ceiling: 15,000 ft broken
- Temperature: 72 °F, dew point 36 °F
- Altimeter: 29.00 inHg
- Observed at: MTJ, 1 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 19900428013079A](https://openairdocs.org/incident/19900428013079A), Apr 28, 1990: Airpts A9B, Montrose, CO, Substantial damage. Tried to depart in strong gusts with full flaps ballooned into air stalled, dragged wing and cartwheeled.

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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