DEN91LA123

NTSB accident investigation · Cessna A185F · Conchas Dam, NM · September 2, 1991

Accident · No injuriesLimited investigationFinal report
Date
September 2, 1991, 09:30 local (15:30 UTC)
Place
Conchas Dam, NM
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N93272Cessna A185F
Weather
Visual (VMC) · Day
Status
Completed · report May 3, 1993
Report
Approved by Office Director
FAA report
19910902040669A
Case key
18131

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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Probable cause

Landing gear locking mechanism loose, landing gear wheel deployed inadvertently, and maintenance alignment not performed. Factors were: propeller governor underspeed, maintenance adjustment not corrected, and lowering of flaps not performed.

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.

Dragged wing,rotor,pod,float or tail/skidTakeoff - roll/run
Landing gear,gear locking mechanism - looseCause
Lowering of flaps - not performedPilot in commandFactor
Landing gear,wheel - deployed inadvertentlyCause
Water loop/swerve - inadvertentPilot in command
Propeller governor control - underspeedFactor
Maintenance,adjustment - not correctedOther maintenance personnelFactor
Maintenance,alignment - not performedOther maintenance personnelCause
Loss of control - on ground/waterTakeoff - roll/run

Analysis

The airplane waterlooped during the takeoff run after nearly waterlooping on the previous landing. Postaccident examination disclosed the landing gear cable was improperly rigged, allowing the left aft pontoon wheel to deploy. Maximum RPM could not be attained because the propeller governor was not properly adjusted. A review of the accident video tape revealed aircraft had attained sufficient flying speed. Pilot did not deploy takeoff flaps.

Aircraft

Registration
N93272
Reported as
Cessna A185F
Category
Airplane
Serial number
18503206
Engine
Continental IO-520-D, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Ralph A. Hassall
Registered owner
Ralph A. Hassall
Destination
ELP · El Paso, TX
Airport
E61 · Conchas Lake Spb

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
60
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Flight hours
199 total · 75 in this make and model · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 10 knots
Visibility
30 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.

Other investigations on N93272 · 2

Matched to the same aircraft by N-number and date.