LAX87LA220

NTSB accident investigation · Ryan ST-A · Mariposa, CA · May 30, 1987

Accident · No injuriesLimited investigationFinal report
Date
May 30, 1987, 16:15 local (23:15 UTC)
Place
Mariposa, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N14954Ryan ST-A
Weather
Visual (VMC) · Day
Status
Completed · report May 9, 1988
Report
Approved by Office Director
FAA report
19870530059009A
Case key
25597

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

On this page

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.

Loss of control - on ground/waterTakeoff - roll/run
Aborted takeoff - delayedPilot in commandFactor
Directional control - not maintainedPilot in commandCause
Brakes(normal) - not usedPilot in commandFactor
On ground/water encounter with terrain/waterTakeoff - roll/run
Terrain condition - softFactor
Terrain condition - dirt bank/rising embankmentFactor
Nose overTakeoff - roll/run

Analysis

At the start of a pleasure flight, the plt reported that during the takeoff roll the acft started to veer to the left. The plt applied right rudder to correct, however, the acft did not respond before the left main left the edge of the rwy and dug in the soft dirt forcing the acft to turn further to the left. The plt chose to abort the take-off and closed the throttle. The acft then collided with a dirt berm at aprx 40 mph and nosed over. There were no mechanical failures or malfunctions reported prior to the accident. The plt was taking-off on rwy 26, with the wind from 250 degrees at 15 knots.

Aircraft

Registration
N14954
Reported as
Ryan ST-A
Category
Airplane
Serial number
N110
Airframe hours
4,146
Engine
Menasco D-4-87, 135 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Salsburg, Benjamin L.
Registered owner
Salsburg, Benjamin L.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 19, 1987 · 30 hours before
Destination
HWD · Hayward, CA
Airport
068 · Mariposayosemite, runway 26, 3,310 × 50 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
51
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
997 total · 460 in this make and model · 967 as pilot in command · 5 in the last 90 days · 4 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 10 knots
Visibility
15 statute miles
Temperature
81 °F, dew point 41 °F
Altimeter
29.00 inHg
Observed at
MER, 26 nm away

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 N14954 · 1

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