LAX98LA114

NTSB accident investigation · Socata TBM 700 · Truckee, CA · March 14, 1998

Accident · Minor injuriesLimited investigationFinal report
Date
March 13, 1998, 19:00 local (Mar 14, 1998, 03:00 UTC)
Place
Truckee, CA
Injuries
4 minor
Damage
Destroyed
Phase of flight
Approach
Aircraft
N345RDSocata TBM 700
Weather
Visual (VMC) · Night/dark
Status
Completed · report August 3, 1999
Report
Approved by Office Director
FAA report
19980313003409A
Case key
30050

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

The failure of the pilot to maintain control of the aircraft due to spatial disorientation. A factor was the dark night.

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 collision with terrain/waterCircling (ifr)
Light condition - dark nightFactor
Aircraft control - not maintainedPilot in commandCause
Spatial disorientationPilot in commandFactor

Analysis

The pilot was cleared for a GPS approach. He stated that he was too high to make a good landing, so he opted for a circling approach to another runway. As he turned for the base leg, he lost visual contact and became disoriented. It was a dark night with no moon. The pilot realized that he was in a 70- to 80-degree left bank and returned the airplane to a level attitude, then noticed the ground directly in front of him. The aircraft ran through a barbed wire fence, collided with trees, and slid rearward to a stop in a high altitude meadow east of the airport. The FAA completed an evaluation of the circling approach procedures and night operations for that airport and did not find any problems.

Factual narrative

On March 13, 1998, about 1900 hours Pacific standard time, a Socata TBM 700, N345RD, collided with terrain about 0.5 miles east of the Truckee, California, airport. The airplane was destroyed, and the commercial pilot and three passengers received minor injuries. The airplane was being operated as a personal flight by the pilot/owner. The flight originated from Gnoss Field in Novota, California, at 1800. Night visual meteorological conditions prevailed at the time and an IFR flight plan was filed.

The Truckee Airport was reporting visual meteorological conditions with 10 miles visibility and a 1,700-foot agl overcast ceiling. The pilot was cleared by Oakland Center Approach Control for a Global Positioning System (GPS) approach to runway 19. He reported that there was a bluff near runway 19 with housing on it, which made him uncomfortable, so he delayed his descent to the minimum descent altitude (MDA). When he did descend, he felt that he was too high too make a good landing on the runway so he opted instead to perform a circling approach to runway 28. The pilot stated that as he initiated a left turn for the base leg of runway 28, he became preoccupied with maintaining visual contact with the airport. It was a dark night with no moon. The pilot reported that he soon lost visual contact and became disoriented. The attitude indicator showed the aircraft to be in a 70- to 80-degree left bank.

As the pilot returned the airplane to a straight and level attitude, he noticed the ground directly in front of him. The aircraft ran through a barbed wire fence, collided with trees, and slid rearward to a stop in a high altitude meadow east of the airport.

The Federal Aviation Administration Flight Inspection Field Office in Sacramento, California, conducted an evaluation of the GPS approach for runway 19 with circle to land minimums at night for all categories, the elevation differential around the airport, and overall night operations at the Truckee Airport. They reported that they did not find any problems with the approach.

Aircraft

Registration
N345RD
Reported as
Socata TBM 700
Category
Airplane
Serial number
76
Airframe hours
1,119
Engine
P&W PT6A-64, 700 horsepower, turbo prop
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Dolby, Ray M.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 9, 1998 · 4 hours before
Departed
O56 · Novato, CA
Destination
TRK
Flight plan
IFR
Airport
TRK · Truckee-Tahoe, runway 19, 4,650 × 75 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
65
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,088 total · 1,200 in this make and model · 1,940 as pilot in command · 75 in the last 90 days · 21 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/dark
Wind
10° at 3 knots
Visibility
10 statute miles
Lowest ceiling
1,700 ft overcast
Temperature
36 °F, dew point 34 °F
Altimeter
30.00 inHg
Observed at
TRK

FAA reports on this event · 1

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