# NTSB LAX91LA271: Classic YMF, N7P, Bullhead City, AZ, June 22, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 22, 1991, 14:10 local (21:10 UTC)
- Place: Bullhead City, AZ
- Location: 35.1478° N, 114.5683° W: Placed by OpenAirDocs: center of Bullhead City, AZ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.1478&lon=-114.5683&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 27257
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX91LA271
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/27257/pdf
- Page: https://openairdocs.org/ntsb/LAX91LA271

## Probable cause

EXCESSIVE BRAKE APPLICATION BY THE PILOT IN COMMAND. A CONTRIBUTING FACTOR IN THE ACCIDENT WAS THE WIND GUSTS.

## Sequence of events

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

- Nose over, landing - roll
  - weather condition - gusts (contributing factor)
  - brakes(normal) - excessive, pilot in command (cause)

## Analysis

THE CERTIFICATED ATP PILOT/OWNER STATED THAT SHE WAS ON LANDING ROLLOUT WHEN SHE HEARD ANOTHER AIRCRAFT REPORT TOUCH DOWN ON THE SAME RUNWAY.  SHE ATTEMPTED TO EXPEDITE HER DEPARTURE FROM THE RUNWAY.  WITH HEAVY APPLICATION OF BRAKES THE TAIL CAME UP.  FULL BACK STICK AND A BURST OF ENGINE POWER WAS INSUFFICIENT TO COUNTERACT A GUST OF WIND, AND THE AIRCRAFT NOSED OVER.

## Aircraft

- Registration: [N7P](https://openairdocs.org/aircraft/N7P), registered now, S/N F5-031, built 1990 (OpenAirDocs)
- Reported make and model: Classic Aircraft Corp. YMF
- Registry model: [Classic WACO YMF](https://openairdocs.org/model/classic-waco-ymf) (registry code 2240101) (OpenAirDocs)
- Registry engine: [Jacobs R755B series](https://openairdocs.org/engine/jacobs-r755b-series) (registry code 35007, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: F5-031
- Engines: JACOBS R-755-B2 275 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Zephyr Aircraft Inc.
- Registered owner: Zephyr Aircraft Inc.
- Departed: CDC, CEDAR CITY, UT
- Flight plan: VFR
- Airport: PD6, Bullhead City, runway 17, 4,645 × 60 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; airline transport, flight instructor; airplane ratings: multi-engine land, single-engine sea, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; flight hours: 15,300 total, 36 in this make and model, 15,030 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 230° at 15 knots
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °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 19910622023169A](https://openairdocs.org/incident/19910622023169A), Jun 22, 1991: Waco YMF, Bullhead City, AZ, Substantial damage. Trying to expedite clearing runway for following traffic. Hit brakes too hard. Tail came up and nosed over.

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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