DEN87LA079

NTSB accident investigation · North American Navion · Los Alamos, NM · April 3, 1987

Accident · No injuriesLimited investigationFinal report
Date
April 3, 1987, 11:47 local (18:47 UTC)
Place
Los Alamos, NM
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N91735North American Navion
Weather
Visual (VMC) · Day
Status
Completed · report May 2, 1988
Report
Approved by Office Director
FAA report
19870403008519A
Case key
17186

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight encounter with weatherLanding
Weather condition - crosswindFactor
Wrong runway - selectedPilot in command(cfi)Cause
Compensation for wind conditions - not attainedDual studentCause
Hard landingLanding - flare/touchdown
Flare - misjudgedDual studentCause
Remedial action - inadequatePilot in command(cfi)Cause
Main gear collapsedLanding - flare/touchdown
On ground/water collision with objectLanding - roll
Object - fenceFactor

Analysis

The instructor plt was giving cross wind instruction to a pre-solo student plt. During a cross wind landing attempt, the acft touched down hard, breaking off the right main landing gear. The winds were observed at the time of touchdown to be 150 degrees at 12 knots, a quartering tail wind for rwy 27. After landing, the acft skidded to the right side of the landing area until coming to rest in the arpt boundary fence.

Aircraft

Registration
N91735
Reported as
North American Navion
Category
Airplane
Serial number
NAV 4 491
Airframe hours
3,173
Engine
Continental E 225 4, 225 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Richard B. Olwin
Registered owner
Richard B Olwin
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 23, 1986
Departed
SAF · Santa Fe, NM
Airport
LAM · Los Alamos, runway 27, 5,543 × 130 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
72
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
4,370 total · 9 in this make and model · 4,370 as pilot in command · 19 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 12 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
46 °F, dew point 25 °F
Altimeter
30.00 inHg
Observed at
LAM

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.