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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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NTSB Report

June 7, 1987 · Mooney M20E · N6933U

Harwood, ND

Overview

Report Status
Preliminary report
Event Type
Accident
Date
June 7, 1987
Injury Outcomes
No injuries (1 uninjured)
Location
Harwood, ND
Aircraft
Mooney M20E
Tail Number
N6933U
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN87LA154

THE PLT WAS LANDING HIS MOONEY M20E ON A PRIVATE GRASS AIRSTRIP. HE SAID HE LOWERED THE MANUAL LANDING GEAR AND THOUGHT HE FELT THE THUMBLOCK SNAP INTO PLACE. UPON TOUCHDOWN THE LANDING GEAR FOLDED UP AND THE ACFT SLID TO A STOP, RESULTING IN SUBSTANTIAL DAMAGE. THE OWNER'S MANUAL CAUTIONS PLTS TO MAKE THREE CHECKS TO ASCERTAIN THAT THE LANDING GEAR IS DOWN AND LOCKED: 1. PHYSICAL THUMBLOCK CHECK; 2. VISUAL GEAR LIGHT CHECK; 3. AUDIBLE GEAR HORN CHECK FROM RETARDED THROTTLE. ASKED IF HE AHD CHECKED TO SEE IF HE HAD A SAFE/GEAR DOWN AND LOCKED GREEN LIGHT INDICATION, THE PLT SAID HE THOUGHT HE HAD. HE SAID HE DIDN'T REMEMBER IF THE GEAR UNSAFE WARNING HORN EVER SOUNDED.

Full Narrative

THE PLT WAS LANDING HIS MOONEY M20E ON A PRIVATE GRASS AIRSTRIP. HE SAID HE LOWERED THE MANUAL LANDING GEAR AND THOUGHT HE FELT THE THUMBLOCK SNAP INTO PLACE. UPON TOUCHDOWN THE LANDING GEAR FOLDED UP AND THE ACFT SLID TO A STOP, RESULTING IN SUBSTANTIAL DAMAGE. THE OWNER'S MANUAL CAUTIONS PLTS TO MAKE THREE CHECKS TO ASCERTAIN THAT THE LANDING GEAR IS DOWN AND LOCKED: 1. PHYSICAL THUMBLOCK CHECK; 2. VISUAL GEAR LIGHT CHECK; 3. AUDIBLE GEAR HORN CHECK FROM RETARDED THROTTLE. ASKED IF HE AHD CHECKED TO SEE IF HE HAD A SAFE/GEAR DOWN AND LOCKED GREEN LIGHT INDICATION, THE PLT SAID HE THOUGHT HE HAD. HE SAID HE DIDN'T REMEMBER IF THE GEAR UNSAFE WARNING HORN EVER SOUNDED.

Flight

Event TypeAccident
Event Time14:00 CDT
Nearest Airport0nm N
Runway29
Runway Length1900 ft
Runway Width50 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftMooney M20E
Tail NumberN6933U
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-360-A1A · Reciprocating · 200
Seats4

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 36 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind280° @ 8 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO

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Appendix: Source Data