# NTSB LAX91LA049: Cessna 150, N9312U, Tucson, AZ, December 4, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: December 4, 1990, 08:50 local (15:50 UTC)
- Place: Tucson, AZ
- Coordinates: 32.149036, -110.929489 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.1490&lon=-110.9295&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 12, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 27072
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX91LA049
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/27072/pdf
- Page: https://openairdocs.org/ntsb/LAX91LA049

## Probable cause

ONE OR MORE OF THE F-16 PILOT'S IMPROPER USE OF THROTTLES BEFORE BEING CLEARED FOR TAKE OFF.

## Sequence of events

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

- Propeller blast or jet exhaust/suction, taxi - to takeoff
  - throttle/power control - improper use of, pilot of other aircraft (cause)

## Analysis

THE PIC REQUESTED AND RECEIVED TAXI CLEARANCE TO RUNWAY 11L. UPON APPROACHING 11L THE GROUND CONTROLLER CLEARED THE FLIGHT TO CROSS RUNWAY 11L AFTER COORDINATING THE CROSSING WITH THE LOCAL CONTROLLER AS 4 F-16 AIRPLANES WERE IN POSITION FOR TAKEOFF ON RUNWAY 11L. AS THE FLIGHT PROCEEDED ACROSS THE RUNWAY ONE OF THE F-16 PILOT QUERIED THE LOCAL CONTROLLER IF THE F-16'S WERE CLEARED FOR TAKEOFF AND THE CONTROLLER RESPONDED NEGATIVE WHILE SIMULTANEOUSLY UNIDENTIFIED VOICES ON THE RECORDED COMMUNICATIONS MEDIUM EXCLAIMED THAT THE CESSNA 150 WAS BLOWN OVER. ONE OF THE F-16 PILOTS APPLIED TAKEOFF POWER IN ANTICIPATION OF A TAKEOFF CLEARANCE.

## Aircraft

- Registration: [N9312U](https://openairdocs.org/deregistered/N9312U-1998-05-01), registration cancelled 1998-05-01, S/N 15078262 (OpenAirDocs)
- Reported make and model: CESSNA 150
- Registry model: [Cessna 150M](https://openairdocs.org/model/cessna-150m) (registry code 2071830) (OpenAirDocs)
- Category: Airplane
- Serial number: 15078262
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Leading Edge Aviation
- Airport: TU5, Tucson

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; flight instructor, commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 425 total, 227 in this make and model, 348 as pilot in command, 60 in the last 90 days, 50 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 140° at 21 knots, gusting 26
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °F
- Altimeter: 30.00 inHg

## 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 19901204052769A](https://openairdocs.org/incident/19901204052769A), Dec 4, 1990: Cessna 150M, Tucson, AZ, Substantial damage. Cleared to taxi behind four F16'S with strong gusty surface wind. An F16 powered up. Blew 150 up on nose and wind tip

## Other investigations on N9312U (1)

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 LAX92LA113](https://openairdocs.org/ntsb/LAX92LA113), Feb 9, 1992: Cessna 150M (N9312U), Tucson, AZ, substantial damage. Probable cause: FUEL EXHAUSTION DUE TO THE INSTRUCTOR PILOT'S FAILURE TO REFUEL THE AIRCRAFT.

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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