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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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October 5, 1991 · Grumman AA-5A · N9694U

Flagstaff, AZ

Overview

Report Status
Probable Cause
Event Type
Accident
Date
October 5, 1991
Injury Outcomes
1 injury (1 minor injury)
Location
Flagstaff, AZ
Aircraft
Grumman AA-5A
Tail Number
N9694U
Operator
Madison L Myers
Injuries
Minor
Aircraft Damage
Destroyed
NTSB Number
LAX92LA008

THE DENSITY ALTITUDE AT THE TIME OF THE ACCIDENT WAS CALCULATED TO BE IN EXCESS OF 9,800 FEET. NUMEROUS GROUND WITNESSES AT THE AIRPORT REPORTED THAT THE AIRCRAFT ROTATED IN A NOSE HIGH ATTITUDE, CLIMBED TO ABOUT 30 FEET ABOVE RUNWAY 21 AND FLEW ALONG ITS 7,000 FOOT LENGTH WITHOUT GAINING ANY ADDITIONAL ALTITUDE. THE AIRCRAFT WAS OBSERVED TO DESCEND IN THE SAME RELATIVE NOSE HIGH ATTITUDE INTO THE GROUND ABOUT 100 YARDS BEYOND THE DEPARTURE END OF THE RUNWAY. A POST CRASH FIRE STARTED AFTER THE IMPACT SEQUENCE AND CONSUMED THE AIRCRAFT. ALL OF THE WITNESSES REPORTED HEARING STRONG ENGINE SOUNDS DURING THE ACCIDENT SEQUENCE FROM THE TAKEOFF TO GROUND IMPACT.

NTSB Probable Cause

AN INADVERTENT STALL/MUSH DUE TO THE PILOT'S FAILURE TO MAINTAIN THE APPROPRIATE AIRSPEED DURING THE TAKEOFF ATTEMPT. FACTORS IN THE ACCIDENT WERE THE HIGH DENSITY ALTITUDE AND THE INADEQUATE PREFLIGHT PLANNING BY THE PILOT.

Full Narrative

THE DENSITY ALTITUDE AT THE TIME OF THE ACCIDENT WAS CALCULATED TO BE IN EXCESS OF 9,800 FEET. NUMEROUS GROUND WITNESSES AT THE AIRPORT REPORTED THAT THE AIRCRAFT ROTATED IN A NOSE HIGH ATTITUDE, CLIMBED TO ABOUT 30 FEET ABOVE RUNWAY 21 AND FLEW ALONG ITS 7,000 FOOT LENGTH WITHOUT GAINING ANY ADDITIONAL ALTITUDE. THE AIRCRAFT WAS OBSERVED TO DESCEND IN THE SAME RELATIVE NOSE HIGH ATTITUDE INTO THE GROUND ABOUT 100 YARDS BEYOND THE DEPARTURE END OF THE RUNWAY. A POST CRASH FIRE STARTED AFTER THE IMPACT SEQUENCE AND CONSUMED THE AIRCRAFT. ALL OF THE WITNESSES REPORTED HEARING STRONG ENGINE SOUNDS DURING THE ACCIDENT SEQUENCE FROM THE TAKEOFF TO GROUND IMPACT.

Flight

Event TypeAccident
Event Time16:17 MST
Nearest AirportPULLMAN (0nm)
Runway21
Runway Length6999 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionNo

Aircraft

AircraftGrumman AA-5A
Tail NumberN9694U
Aircraft CategoryAir
DamageDestroyed
OperatorMadison L Myers
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320 · Reciprocating · 150
Seats4

People & Injuries

Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 59 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind240° @ 12 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point12 C
Altimeter30.00 inHg
Observation Time23:18
Weather SourceWFAC

Appendix: Source Data